/* ===== 全局重置与基础样式 ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary-color: #F0B90B;
  --primary-dark: #D49B0A;
  --secondary-color: #1E2329;
  --dark-bg: #0B0E11;
  --card-bg: #181A20;
  --text-primary: #EAECEF;
  --text-secondary: #848E9C;
  --text-muted: #5E6673;
  --success-color: #0ECB81;
  --danger-color: #F6465D;
  --border-color: #2B3139;
  --gradient-primary: linear-gradient(135deg, #F0B90B 0%, #FCD535 100%);
  --gradient-dark: linear-gradient(180deg, #1E2329 0%, #0B0E11 100%);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
}

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(--dark-bg);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--primary-dark);
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
}

/* ===== 容器与布局 ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-title p {
  font-size: 1.125rem;
  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(11, 14, 17, 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(11, 14, 17, 0.98);
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.nav-brand .brand-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  color: var(--dark-bg);
  font-size: 1.25rem;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-menu a {
  color: var(--text-primary);
  font-size: 1rem;
  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: var(--transition);
}

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

.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;
  gap: 8px;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--dark-bg);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(240, 185, 11, 0.4);
  color: var(--dark-bg);
}

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

.btn-outline:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background: rgba(240, 185, 11, 0.1);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 1.125rem;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 0.875rem;
}

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

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

/* ===== Hero区域 ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  background: 
    radial-gradient(ellipse at top, rgba(240, 185, 11, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at bottom right, rgba(30, 35, 41, 0.8) 0%, transparent 50%),
    var(--dark-bg);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(240, 185, 11, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(240, 185, 11, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(240, 185, 11, 0.1);
  border: 1px solid rgba(240, 185, 11, 0.3);
  border-radius: 100px;
  font-size: 0.875rem;
  color: var(--primary-color);
  margin-bottom: 24px;
}

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

.hero h1 {
  font-size: 3.75rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

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

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
}

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

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

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

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

.hero-image-wrapper img {
  width: 100%;
  height: 500px;
  object-fit: cover;
}

.hero-floating-card {
  position: absolute;
  background: rgba(24, 26, 32, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-lg);
}

.hero-card-1 {
  top: 20px;
  left: -30px;
  animation: float 4s ease-in-out infinite;
}

.hero-card-2 {
  bottom: 40px;
  right: -20px;
  animation: float 5s ease-in-out infinite reverse;
}

.floating-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 12px;
}

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

.floating-value {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
}

.floating-change {
  font-size: 0.875rem;
  color: var(--success-color);
  margin-top: 4px;
}

/* ===== 核心特性 ===== */
.features {
  background: var(--secondary-color);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: transparent;
  transition: var(--transition);
}

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

.feature-card:hover::before {
  background: var(--gradient-primary);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: rgba(240, 185, 11, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 24px;
  transition: var(--transition);
}

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

.feature-card h3 {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== 服务介绍 ===== */
.services {
  background: var(--dark-bg);
}

.services-wrapper {
  display: grid;
  gap: 80px;
}

.service-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.service-item.reverse {
  direction: rtl;
}

.service-item.reverse > * {
  direction: ltr;
}

.service-content h3 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.service-content p {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.8;
}

.service-list {
  margin-bottom: 32px;
}

.service-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  color: var(--text-primary);
  font-size: 0.9375rem;
}

.service-list li::before {
  content: '✓';
  width: 24px;
  height: 24px;
  background: rgba(14, 203, 129, 0.15);
  color: var(--success-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.service-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.service-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: var(--transition);
}

.service-image:hover img {
  transform: scale(1.05);
}

/* ===== 详细内容区 ===== */
.details {
  background: var(--secondary-color);
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.detail-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.detail-card:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-md);
}

.detail-card img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.detail-body {
  padding: 28px;
}

.detail-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.detail-body p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.detail-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--primary-color);
}

.detail-link:hover {
  gap: 12px;
}

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

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

.faq-item {
  background: var(--card-bg);
  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%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px;
  background: transparent;
  color: var(--text-primary);
  font-size: 1.0625rem;
  font-weight: 600;
  text-align: left;
  gap: 16px;
}

.faq-question .arrow {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
  color: var(--primary-color);
}

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

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

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

.faq-answer-inner {
  padding: 0 24px 24px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ===== 行动号召 CTA ===== */
.cta {
  background: 
    radial-gradient(ellipse at center, rgba(240, 185, 11, 0.1) 0%, transparent 70%),
    var(--dark-bg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(240, 185, 11, 0.05) 0%, transparent 50%);
  animation: rotate 20s linear infinite;
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta h2 {
  font-size: 2.75rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.cta p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--secondary-color);
  border-top: 1px solid var(--border-color);
  padding: 80px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 64px;
}

.footer-brand p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-top: 16px;
  line-height: 1.7;
  max-width: 320px;
}

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

.footer-socials a {
  width: 40px;
  height: 40px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  transition: var(--transition);
  color: var(--text-secondary);
}

.footer-socials a:hover {
  background: var(--gradient-primary);
  border-color: var(--primary-color);
  color: var(--dark-bg);
  transform: translateY(-2px);
}

.footer-col h4 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
}

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

.footer-col ul li a {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copyright {
  font-size: 0.875rem;
  color: var(--text-muted);
}

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

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--primary-color);
}

/* ===== 页面 Banner ===== */
.page-banner {
  padding: 160px 0 80px;
  background: 
    radial-gradient(ellipse at top, rgba(240, 185, 11, 0.1) 0%, transparent 50%),
    var(--dark-bg);
  text-align: center;
}

.page-banner h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.page-banner p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 0.875rem;
}

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

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

/* ===== 关于页面 ===== */
.about-hero {
  padding: 160px 0 80px;
  background: var(--dark-bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

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

.about-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
}

.about-content h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 24px;
}

.about-content p {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.mission-vision {
  background: var(--secondary-color);
}

.mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.mission-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 40px;
}

.mission-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.mission-card h3 .icon {
  width: 40px;
  height: 40px;
  background: rgba(240, 185, 11, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

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

.values {
  background: var(--dark-bg);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.value-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.value-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-color);
}

.value-icon {
  width: 64px;
  height: 64px;
  background: rgba(240, 185, 11, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin: 0 auto 20px;
}

.value-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.value-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.team {
  background: var(--secondary-color);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.team-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.team-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-color);
}

.team-card img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.team-info {
  padding: 20px;
  text-align: center;
}

.team-info h4 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.team-info p {
  font-size: 0.875rem;
  color: var(--primary-color);
}

/* ===== 产品页面 ===== */
.products-hero {
  padding: 160px 0 80px;
  background: var(--dark-bg);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.product-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-lg);
}

.product-header {
  padding: 32px;
  background: rgba(240, 185, 11, 0.05);
  border-bottom: 1px solid var(--border-color);
}

.product-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(240, 185, 11, 0.15);
  color: var(--primary-color);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.product-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
}

.product-body {
  padding: 32px;
}

.product-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

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

.product-price {
  padding: 24px 32px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.product-price .price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

/* ===== 新闻页面 ===== */
.news-hero {
  padding: 160px 0 80px;
  background: var(--dark-bg);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

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

.news-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-color);
}

.news-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.news-body {
  padding: 24px;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.news-meta .category {
  color: var(--primary-color);
  font-weight: 600;
}

.news-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.5;
  transition: var(--transition);
}

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

.news-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}

.news-pagination a {
  min-width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-weight: 600;
}

.news-pagination a.active {
  background: var(--gradient-primary);
  color: var(--dark-bg);
  border-color: var(--primary-color);
}

.news-pagination a:hover:not(.active) {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

/* ===== 新闻详情页面 ===== */
.news-detail-hero {
  padding: 160px 0 80px;
  background: var(--dark-bg);
}

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

.news-detail-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 24px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.news-detail-meta .author {
  color: var(--primary-color);
  font-weight: 600;
}

.news-detail-content h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 32px;
  line-height: 1.3;
}

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

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

.news-detail-body {
  font-size: 1.0625rem;
  line-height: 1.9;
  color: var(--text-primary);
}

.news-detail-body p {
  margin-bottom: 24px;
}

.news-detail-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 40px 0 16px;
  padding-left: 16px;
  border-left: 3px solid var(--primary-color);
}

.news-detail-body blockquote {
  background: var(--card-bg);
  border-left: 4px solid var(--primary-color);
  padding: 24px;
  margin: 32px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-secondary);
}

/* ===== 联系页面 ===== */
.contact-hero {
  padding: 160px 0 80px;
  background: var(--dark-bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}

.contact-info h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.contact-info > p {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 40px;
}

.contact-item {
  display: flex;
  gap: 16px;
  padding: 20px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  transition: var(--transition);
}

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

.contact-item-icon {
  width: 48px;
  height: 48px;
  background: rgba(240, 185, 11, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-item-content h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.contact-item-content p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

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

.contact-form-wrapper h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 24px;
}

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

.form-group label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--dark-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9375rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(240, 185, 11, 0.15);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ===== 返回顶部 ===== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dark-bg);
  font-size: 1.25rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  box-shadow: var(--shadow-lg);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-4px);
}

/* ===== 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 float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-15px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 3rem;
  }
  
  .section-title h2 {
    font-size: 2rem;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .service-item,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .service-item.reverse {
    direction: ltr;
  }
  
  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .products-grid,
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .nav-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--dark-bg);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border-color);
  }
  
  .nav-menu.open {
    display: flex;
  }
  
  .mobile-toggle {
    display: flex;
  }
  
  .hero {
    padding-top: 72px;
    min-height: auto;
    padding-bottom: 60px;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .hero h1 {
    font-size: 2.25rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  
  .stat-value {
    font-size: 1.5rem;
  }
  
  .hero-image-wrapper img {
    height: 350px;
  }
  
  .hero-card-1 {
    left: 10px;
  }
  
  .hero-card-2 {
    right: 10px;
  }
  
  .section-title h2 {
    font-size: 1.75rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .service-content h3 {
    font-size: 1.5rem;
  }
  
  .service-image img {
    height: 280px;
  }
  
  .details-grid {
    grid-template-columns: 1fr;
  }
  
  .mission-grid {
    grid-template-columns: 1fr;
  }
  
  .values-grid {
    grid-template-columns: 1fr;
  }
  
  .team-grid {
    grid-template-columns: 1fr;
  }
  
  .products-grid,
  .news-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .cta h2 {
    font-size: 2rem;
  }
  
  .page-banner {
    padding: 120px 0 60px;
  }
  
  .page-banner h1 {
    font-size: 2rem;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .news-detail-content h1 {
    font-size: 1.75rem;
  }
  
  .news-detail-image img {
    height: 250px;
  }
  
  .contact-form-wrapper {
    padding: 24px;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.875rem;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .stat-item {
    text-align: center;
  }
  
  .hero-floating-card {
    padding: 14px;
  }
  
  .floating-icon {
    width: 36px;
    height: 36px;
    font-size: 1.125rem;
  }
  
  .floating-value {
    font-size: 0.9375rem;
  }
}