/* ============================================
   FORBES GAME - 官方网站样式表
   百度SEO优化 | 响应式设计 | 高性能
   ============================================ */

/* --- CSS变量定义 --- */
:root {
  --primary: #0a1628;
  --secondary: #122040;
  --accent: #d4a843;
  --accent-light: #f0d78c;
  --accent-glow: rgba(212, 168, 67, 0.4);
  --text-light: #e8edf5;
  --text-muted: #8a9bb5;
  --text-dark: #1a1a2e;
  --bg-dark: #060d18;
  --bg-card: #0d1830;
  --bg-card-hover: #111e3d;
  --border-color: rgba(212, 168, 67, 0.15);
  --border-light: rgba(255, 255, 255, 0.08);
  --gradient-gold: linear-gradient(135deg, #d4a843 0%, #f0d78c 50%, #d4a843 100%);
  --gradient-dark: linear-gradient(180deg, #0a1628 0%, #060d18 100%);
  --gradient-hero: linear-gradient(135deg, rgba(10,22,40,0.95) 0%, rgba(18,32,64,0.85) 50%, rgba(10,22,40,0.95) 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);
  --shadow-gold: 0 4px 20px rgba(212, 168, 67, 0.2);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Noto Sans CJK SC', 'Microsoft YaHei', 'PingFang SC', sans-serif;
  background: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  break-inside: avoid;
  page-break-inside: avoid;
}

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

a:hover {
  color: var(--accent-light);
  text-shadow: 0 0 8px var(--accent-glow);
}

ul, ol {
  list-style: none;
}

/* --- 辅助类 --- */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-wide {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.section-alt {
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--secondary) 50%, var(--bg-dark) 100%);
}

.text-center { text-align: center; }
.text-gold { color: var(--accent); }
.text-muted { color: var(--text-muted); }

/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-gold);
  color: var(--primary);
  box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(212, 168, 67, 0.35);
  color: var(--primary);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}

.btn-outline:hover {
  background: var(--accent);
  color: var(--primary);
}

/* --- 顶部公告栏 --- */
.top-bar {
  background: linear-gradient(90deg, #060d18 0%, #0d1830 50%, #060d18 100%);
  border-bottom: 1px solid var(--border-color);
  padding: 8px 0;
  font-size: 0.82rem;
  color: var(--text-muted);
  text-align: center;
}

.top-bar marquee {
  display: inline-block;
}

.top-bar a {
  color: var(--accent-light);
  margin: 0 12px;
}

/* --- 导航栏 --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(6, 13, 24, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(6, 13, 24, 0.98);
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.nav-logo-icon {
  width: 42px;
  height: 42px;
  background: var(--gradient-gold);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.2rem;
  color: var(--primary);
  font-style: italic;
}

.nav-logo-text {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-light);
  letter-spacing: 1px;
}

.nav-logo-text span {
  color: var(--accent);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-menu a {
  padding: 8px 16px;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--accent);
  background: rgba(212, 168, 67, 0.08);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-phone {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
}

/* --- Hero区域 --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 72px;
  background: var(--gradient-dark);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url('../images/hero-banner.jpg') center/cover no-repeat;
  opacity: 0.35;
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6,13,24,0.6) 0%, rgba(6,13,24,0.85) 70%, var(--bg-dark) 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(212,168,67,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212,168,67,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1440px;
  margin: 0 auto;
  padding: 80px 24px;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(212, 168, 67, 0.1);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 28px;
  animation: fadeInUp 0.6s ease-out;
}

.hero-badge::before {
  content: '●';
  color: #4ade80;
  animation: pulse 2s infinite;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease-out 0.1s both;
}

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

.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 40px;
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease-out 0.3s both;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 80px;
  animation: fadeInUp 0.6s ease-out 0.4s both;
}

.hero-stat {
  text-align: center;
  padding: 24px 16px;
  background: rgba(13, 24, 48, 0.6);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  backdrop-filter: blur(8px);
}

.hero-stat-num {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--accent);
  display: block;
  line-height: 1.2;
}

.hero-stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

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

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

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

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* --- 区块标题 --- */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(212, 168, 67, 0.1);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  font-size: 0.82rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.3;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
}

/* --- 服务卡片 --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

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

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-color);
  box-shadow: var(--shadow-lg);
  background: var(--bg-card-hover);
}

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

.service-icon {
  width: 64px;
  height: 64px;
  background: rgba(212, 168, 67, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 24px;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: var(--accent);
  transform: scale(1.1);
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-light);
}

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

/* --- 新闻区域 --- */
.news-filter {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.news-filter button {
  padding: 8px 24px;
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  border-radius: 50px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: var(--transition);
}

.news-filter button:hover,
.news-filter button.active {
  background: var(--accent);
  color: var(--primary);
  border-color: var(--accent);
  font-weight: 600;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.news-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.news-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: var(--transition-slow);
}

.news-card:hover .news-img {
  transform: scale(1.05);
}

.news-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.news-category {
  padding: 3px 12px;
  background: rgba(212, 168, 67, 0.15);
  color: var(--accent);
  border-radius: 4px;
  font-size: 0.78rem;
  font-weight: 600;
}

.news-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.4;
  color: var(--text-light);
  transition: var(--transition);
}

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

.news-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  flex: 1;
}

.news-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

.news-date {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.news-read-more {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

.news-read-more:hover {
  gap: 8px;
}

/* --- 关于我们 --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

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

.about-content h2 {
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 24px;
  line-height: 1.3;
}

.about-content p {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 20px;
  line-height: 1.8;
}

.about-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.about-feature-icon {
  width: 36px;
  height: 36px;
  background: rgba(212, 168, 67, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.about-feature-text h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.about-feature-text p {
  font-size: 0.85rem;
  margin: 0;
}

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

.team-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}

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

.team-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  margin: 0 auto 20px;
  background: var(--gradient-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
}

.team-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.team-card .team-role {
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 12px;
}

.team-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --- 数据展示 --- */
.stats-bar {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
  padding: 64px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

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

.stat-item .stat-num {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  line-height: 1.2;
}

.stat-item .stat-label {
  font-size: 1rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* --- 联系方式 --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.contact-item:hover {
  border-color: var(--border-color);
  transform: translateX(4px);
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: rgba(212, 168, 67, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

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

.contact-text p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

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

.contact-form h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 24px;
}

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

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-muted);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(6, 13, 24, 0.6);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-light);
  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(--accent);
  box-shadow: 0 0 0 3px rgba(212, 168, 67, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* --- 页脚 --- */
.footer {
  background: #040810;
  padding: 64px 0 32px;
  border-top: 1px solid var(--border-color);
}

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

.footer-brand h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.footer-brand h3 span {
  color: var(--accent);
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 360px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-light);
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.footer-col ul li a:hover {
  color: var(--accent);
}

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

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

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

.footer-social a {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--accent);
  color: var(--primary);
  transform: translateY(-2px);
}

/* --- 回到顶部 --- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--accent);
  color: var(--primary);
  border: none;
  border-radius: 50%;
  font-size: 1.3rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-gold);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
}

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

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(212, 168, 67, 0.4);
}

/* --- 面包屑 --- */
.breadcrumb {
  padding: 100px 0 24px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

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

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

.breadcrumb span {
  margin: 0 8px;
  color: var(--accent);
}

/* --- 新闻详情页 --- */
.news-detail {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 24px;
}

.news-detail-header {
  text-align: center;
  margin-bottom: 48px;
}

.news-detail-header h1 {
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 20px;
}

.news-detail-meta {
  display: flex;
  justify-content: center;
  gap: 24px;
  font-size: 0.88rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

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

.news-detail-body h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 40px 0 16px;
  padding-left: 16px;
  border-left: 4px solid var(--accent);
}

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

.news-detail-body img {
  border-radius: var(--radius-md);
  margin: 32px 0;
  width: 100%;
}

/* --- 加载动画 --- */
.loading-skeleton {
  background: linear-gradient(90deg, #0d1830 25%, #111e3d 50%, #0d1830 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

/* --- Schema标记隐藏内容 --- */
.schema-markup {
  display: none;
}

/* --- 响应式设计 --- */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(6, 13, 24, 0.98);
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--border-light);
  }
  
  .nav-menu.active {
    display: flex;
  }
  
  .nav-menu a {
    padding: 12px 16px;
    width: 100%;
    text-align: center;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .nav-phone {
    display: none;
  }
  
  .section {
    padding: 64px 0;
  }
  
  .services-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .about-features { grid-template-columns: 1fr; }
  
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .hero-actions .btn {
    justify-content: center;
  }
}

/* --- 打印样式 --- */
@media print {
  .navbar, .footer, .back-to-top, .top-bar { display: none; }
  body { background: white; color: black; }
  .section { padding: 20px 0; }
}

/* --- 减少动画偏好 --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}