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

:root {
  --primary: #e63946;
  --primary-dark: #c1121f;
  --secondary: #f72585;
  --accent: #ffd166;
  --bg-dark: #0f0f1a;
  --bg-card: #1a1a2e;
  --bg-section: #16213e;
  --text-primary: #ffffff;
  --text-secondary: #b8b8c8;
  --text-muted: #7a7a8c;
  --border-color: rgba(255, 255, 255, 0.1);
  --shadow: 0 10px 40px rgba(230, 57, 70, 0.15);
  --shadow-hover: 0 20px 60px rgba(230, 57, 70, 0.3);
  --gradient-primary: linear-gradient(135deg, #e63946 0%, #f72585 100%);
  --gradient-dark: linear-gradient(180deg, #0f0f1a 0%, #1a1a2e 100%);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius: 12px;
  --radius-lg: 20px;
  --max-width: 1280px;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.8;
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

/* ========== 容器 ========== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ========== 导航栏 ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 15, 26, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

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

.brand-logo {
  width: 44px;
  height: 44px;
  background: var(--gradient-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 4px 20px rgba(230, 57, 70, 0.4);
}

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

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

.nav-item {
  position: relative;
}

.nav-link {
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 500;
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: rgba(230, 57, 70, 0.15);
}

.nav-link.active {
  color: var(--primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

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

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

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

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

/* ========== Hero区域 ========== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
  background: var(--gradient-dark);
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(230, 57, 70, 0.3) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulse 8s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(247, 37, 133, 0.25) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulse 10s ease-in-out infinite reverse;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.1); opacity: 1; }
}

.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-out;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(230, 57, 70, 0.15);
  border: 1px solid rgba(230, 57, 70, 0.3);
  border-radius: 50px;
  font-size: 0.875rem;
  color: var(--primary);
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease-out;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: blink 1.5s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 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: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 520px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-family: inherit;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(230, 57, 70, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(230, 57, 70, 0.5);
}

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

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

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

.stat-item h3 {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-item p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

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

.hero-image-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
  box-shadow: var(--shadow-hover);
}

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

.hero-float-card {
  position: absolute;
  background: rgba(26, 26, 46, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
  animation: float 4s ease-in-out infinite;
}

.hero-float-card.card-1 {
  top: 20px;
  left: -40px;
  animation-delay: 0s;
}

.hero-float-card.card-2 {
  bottom: 40px;
  right: -30px;
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

.float-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  background: var(--gradient-primary);
}

.float-text strong {
  display: block;
  font-size: 0.9rem;
}

.float-text span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

@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 fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ========== 通用Section ========== */
.section {
  padding: 100px 0;
  position: relative;
}

.section-alt {
  background: var(--bg-section);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(230, 57, 70, 0.15);
  border-radius: 50px;
  font-size: 0.8rem;
  color: var(--primary);
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.section-header h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.3;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* ========== 核心特性 ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.feature-card:hover {
  transform: translateY(-8px);
  border-color: rgba(230, 57, 70, 0.3);
  box-shadow: var(--shadow);
}

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

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 24px;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  font-weight: 700;
}

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

/* ========== 服务/分类 ========== */
.services-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.service-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/10;
  cursor: pointer;
  transition: var(--transition);
}

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

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

.service-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 15, 26, 0.95) 0%, rgba(15, 15, 26, 0.3) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
}

.service-overlay h3 {
  font-size: 1.35rem;
  margin-bottom: 8px;
  font-weight: 700;
}

.service-overlay p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.service-overlay .more {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ========== 热门资讯 ========== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

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

.news-card:hover {
  transform: translateY(-6px);
  border-color: rgba(230, 57, 70, 0.3);
  box-shadow: var(--shadow);
}

.news-image {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.news-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.news-card:hover .news-image img {
  transform: scale(1.08);
}

.news-category {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 4px 12px;
  background: var(--gradient-primary);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
}

.news-badge-hot {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 4px 10px;
  background: rgba(0,0,0,0.6);
  border-radius: 50px;
  font-size: 0.7rem;
  display: flex;
  align-items: center;
  gap: 4px;
}

.news-badge-hot::before {
  content: '🔥';
  font-size: 0.8rem;
}

.news-body {
  padding: 24px;
}

.news-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.5;
  transition: var(--transition);
}

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

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

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

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

/* ========== CTA区域 ========== */
.cta {
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  opacity: 0.95;
}

.cta-bg::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='0.08'%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");
}

.cta-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  margin: 0 auto;
}

.cta h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  margin-bottom: 16px;
  color: #fff;
}

.cta p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 36px;
}

.btn-light {
  background: #fff;
  color: var(--primary);
}

.btn-light:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

/* ========== 页脚 ========== */
.footer {
  background: #0a0a14;
  border-top: 1px solid var(--border-color);
  padding: 80px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 16px 0 20px;
  max-width: 320px;
}

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

.social-links a {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition);
}

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

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
  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(--primary);
  padding-left: 4px;
}

.newsletter-form {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}

.newsletter-form input {
  flex: 1;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
}

.newsletter-form input:focus {
  border-color: var(--primary);
}

.newsletter-form button {
  padding: 12px 20px;
  background: var(--gradient-primary);
  border: none;
  border-radius: 8px;
  color: #fff;
  cursor: pointer;
  font-weight: 600;
  font-family: inherit;
  transition: var(--transition);
}

.newsletter-form button:hover {
  transform: translateY(-2px);
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ========== 面包屑 ========== */
.breadcrumb {
  padding: 120px 0 30px;
  background: var(--bg-section);
  border-bottom: 1px solid var(--border-color);
}

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

.breadcrumb-list li a:hover {
  color: var(--primary);
}

.breadcrumb-list li:not(:last-child)::after {
  content: '/';
  margin-left: 10px;
  color: var(--text-muted);
}

.breadcrumb-list li:last-child {
  color: var(--text-primary);
}

.page-header {
  padding: 40px 0 60px;
  text-align: center;
  background: var(--bg-section);
}

.page-header h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 12px;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* ========== 详情页 ========== */
.article-main {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  padding: 60px 0;
}

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

.article-content .article-hero {
  aspect-ratio: 16/9;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 28px;
}

.article-content .article-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-content h1 {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.4;
}

.article-meta-bar {
  display: flex;
  gap: 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 28px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.article-body p {
  font-size: 1.05rem;
  line-height: 2;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.article-body h2 {
  font-size: 1.35rem;
  margin: 32px 0 16px;
  font-weight: 700;
}

.article-body blockquote {
  border-left: 4px solid var(--primary);
  padding: 16px 24px;
  background: rgba(230, 57, 70, 0.08);
  border-radius: 0 8px 8px 0;
  margin: 24px 0;
  color: var(--text-secondary);
  font-style: italic;
}

.article-aside {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.widget {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
}

.widget h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.widget ul li {
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 0.9rem;
  line-height: 1.6;
}

.widget ul li:last-child {
  border-bottom: none;
}

.widget ul li a:hover {
  color: var(--primary);
}

/* ========== 列表页筛选 ========== */
.filter-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 36px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
}

.filter-bar .filter-btn {
  padding: 8px 20px;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 50px;
  color: var(--text-secondary);
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.875rem;
}

.filter-bar .filter-btn:hover,
.filter-bar .filter-btn.active {
  background: var(--gradient-primary);
  border-color: transparent;
  color: #fff;
}

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

.pagination a {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-weight: 600;
  transition: var(--transition);
}

.pagination a:hover,
.pagination a.active {
  background: var(--gradient-primary);
  border-color: transparent;
}

/* ========== 表单 ========== */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
}

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

/* ========== FAQ ========== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

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

.faq-question {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
}

.faq-question:hover {
  background: rgba(230, 57, 70, 0.08);
}

.faq-question .arrow {
  transition: transform 0.3s ease;
  color: var(--primary);
}

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

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 24px 24px;
}

.faq-answer p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ========== 联系卡片 ========== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

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

.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}

.contact-info-item:last-child {
  margin-bottom: 0;
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

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

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

/* ========== 关于页 ========== */
.about-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
}

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

.about-text h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 20px;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.9;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
}

.team-card {
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
}

.team-card:hover {
  transform: translateY(-6px);
  border-color: rgba(230, 57, 70, 0.3);
}

.team-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 16px;
  border: 3px solid var(--gradient-primary);
}

.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-card h4 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

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

/* ========== 返回顶部 ========== */
.back-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.25rem;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(230, 57, 70, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  border: none;
}

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

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

/* ========== 滚动动画 ========== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .hero-content,
  .about-story,
  .contact-grid,
  .article-main {
    grid-template-columns: 1fr;
  }

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

  .hero-float-card.card-1 { left: 20px; }
  .hero-float-card.card-2 { right: 20px; }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(15, 15, 26, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 8px;
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    display: block;
    padding: 14px 20px;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero-content {
    gap: 40px;
  }

  .hero-visual {
    order: -1;
  }

  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .stat-item h3 {
    font-size: 1.5rem;
  }

  .section {
    padding: 60px 0;
  }

  .cta {
    padding: 60px 0;
  }

  .footer {
    padding: 60px 0 20px;
  }

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

  .article-content {
    padding: 24px;
  }

  .hero-float-card {
    display: none;
  }

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

  .newsletter-form {
    flex-direction: column;
  }

  .footer-bottom {
    text-align: center;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .btn {
    width: 100%;
  }

  .hero-actions {
    flex-direction: column;
  }
}