/* 
 * 影视传媒网站主样式表
 * 移动端优先设计 - 2026年SEO优化版
 */

/* CSS变量定义 - 独特配色方案 */
:root {
  --primary-color: #8B1538;
  --secondary-color: #D4AF37;
  --accent-color: #2C1810;
  --bg-dark: #0D0D0D;
  --bg-light: #1A1A1A;
  --bg-card: #242424;
  --text-primary: #FFFFFF;
  --text-secondary: #B8B8B8;
  --text-muted: #808080;
  --border-color: #333333;
  --gradient-primary: linear-gradient(135deg, #8B1538 0%, #D4AF37 100%);
  --gradient-dark: linear-gradient(180deg, #0D0D0D 0%, #1A1A1A 100%);
  --shadow-soft: 0 4px 20px rgba(139, 21, 56, 0.15);
  --shadow-strong: 0 8px 40px rgba(0, 0, 0, 0.4);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --border-radius: 12px;
  --border-radius-lg: 20px;
}

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

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

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

/* 图片响应式 */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* 链接样式 */
a {
  color: var(--secondary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* 容器 */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 16px;
}

@media (min-width: 768px) {
  .container {
    padding: 0 24px;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 32px;
  }
}

/* 头部导航 - 非sticky */
.site-header {
  background: var(--bg-light);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-logo img {
  width: 48px;
  height: 48px;
  border-radius: 8px;
}

.site-logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

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

@media (min-width: 768px) {
  .menu-toggle {
    display: none;
  }
}

/* 主导航 */
.main-nav {
  display: none;
  width: 100%;
  padding-top: 16px;
}

.main-nav.active {
  display: block;
}

@media (min-width: 768px) {
  .main-nav {
    display: flex;
    width: auto;
    padding-top: 0;
  }
}

.nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

@media (min-width: 768px) {
  .nav-list {
    flex-direction: row;
    gap: 4px;
  }
}

.nav-list a {
  display: block;
  padding: 10px 16px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 8px;
  transition: all var(--transition-fast);
}

.nav-list a:hover,
.nav-list a.active {
  background: var(--bg-card);
  color: var(--secondary-color);
}

/* CTA按钮 */
.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--gradient-primary);
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-soft);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-strong);
  color: var(--text-primary);
}

.btn-secondary {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--secondary-color);
}

/* 英雄区域 */
.hero-section {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding: 60px 0;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.hero-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(13,13,13,0.7) 0%, rgba(13,13,13,0.95) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(212, 175, 55, 0.15);
  border: 1px solid var(--secondary-color);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--secondary-color);
  margin-bottom: 20px;
}

.hero-title {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--text-primary);
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3rem;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 3.5rem;
  }
}

.hero-title span {
  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: 32px;
  max-width: 600px;
}

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

/* 内容区块 */
.section {
  padding: 60px 0;
}

@media (min-width: 768px) {
  .section {
    padding: 80px 0;
  }
}

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

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

.section-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(139, 21, 56, 0.2);
  border-radius: 4px;
  font-size: 0.8rem;
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.25rem;
  }
}

.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* 卡片网格 */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 视频卡片 */
.video-card {
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  border: 1px solid var(--border-color);
}

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

.video-card-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.video-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.video-card-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background: rgba(139, 21, 56, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.video-card:hover .video-card-play {
  opacity: 1;
}

.video-card-play::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 18px solid white;
  border-top: 12px solid transparent;
  border-bottom: 12px solid transparent;
  margin-left: 4px;
}

.video-card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  background: var(--primary-color);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  color: white;
}

.video-card-duration {
  position: absolute;
  bottom: 12px;
  right: 12px;
  padding: 4px 8px;
  background: rgba(0,0,0,0.8);
  border-radius: 4px;
  font-size: 0.75rem;
  color: white;
}

.video-card-body {
  padding: 20px;
}

.video-card-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.video-card-rating {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--secondary-color);
}

/* 评分星星 */
.stars {
  display: flex;
  gap: 2px;
}

.star {
  width: 16px;
  height: 16px;
  background: var(--secondary-color);
  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
}

.star.empty {
  background: var(--text-muted);
}

/* 关于我们区域 */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
  }
}

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

.about-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

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

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.stat-item {
  text-align: center;
  padding: 20px;
  background: var(--bg-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--secondary-color);
  display: block;
}

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

/* 支付方式 */
.payment-section {
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  padding: 40px;
  margin-top: 40px;
}

.payment-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 24px;
  text-align: center;
}

.payment-methods {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

.payment-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 24px;
  background: var(--bg-light);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.payment-item:hover {
  border-color: var(--secondary-color);
}

.payment-icon {
  width: 48px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.payment-name {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

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

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

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: var(--bg-light);
}

.faq-icon {
  width: 24px;
  height: 24px;
  position: relative;
  flex-shrink: 0;
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--secondary-color);
  transition: transform var(--transition-fast);
}

.faq-icon::before {
  width: 14px;
  height: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq-icon::after {
  width: 2px;
  height: 14px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq-item.active .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

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

.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* 用户评论 */
.review-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 640px) {
  .review-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .review-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.review-card {
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  padding: 24px;
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

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

.review-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.review-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: white;
}

.review-info h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.review-info span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.review-rating {
  margin-bottom: 12px;
}

.review-content {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 12px;
}

.review-date {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* 页脚 */
.site-footer {
  background: var(--bg-light);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .site-logo {
  margin-bottom: 16px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

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

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border-radius: 50%;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--primary-color);
  color: white;
}

.footer-column h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
}

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

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

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

.footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.footer-badge {
  padding: 6px 12px;
  background: var(--bg-card);
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

/* 面包屑导航 */
.breadcrumb {
  padding: 16px 0;
  background: var(--bg-light);
  border-bottom: 1px solid var(--border-color);
}

.breadcrumb-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 0.9rem;
}

.breadcrumb-list li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb-list li::after {
  content: '/';
  color: var(--text-muted);
}

.breadcrumb-list li:last-child::after {
  display: none;
}

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

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

.breadcrumb-list li:last-child a {
  color: var(--text-primary);
  pointer-events: none;
}

/* 内页样式 */
.page-header {
  padding: 60px 0;
  background: var(--bg-light);
  text-align: center;
}

.page-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

@media (min-width: 768px) {
  .page-title {
    font-size: 2.5rem;
  }
}

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

/* 视频播放模块 */
.video-player-wrapper {
  position: relative;
  aspect-ratio: 16/9;
  background: #000;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  margin-bottom: 32px;
}

.video-player-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.video-player-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-light) 100%);
}

.video-player-placeholder .play-btn {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform var(--transition-normal);
  margin-bottom: 16px;
}

.video-player-placeholder .play-btn:hover {
  transform: scale(1.1);
}

.video-player-placeholder .play-btn::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 24px solid white;
  border-top: 16px solid transparent;
  border-bottom: 16px solid transparent;
  margin-left: 6px;
}

.video-player-placeholder p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* APP下载页面 */
.app-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
  padding: 60px 0;
}

@media (min-width: 768px) {
  .app-hero {
    grid-template-columns: 1fr 1fr;
  }
}

.app-mockup {
  max-width: 300px;
  margin: 0 auto;
}

.app-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 32px;
}

@media (min-width: 640px) {
  .app-features {
    grid-template-columns: repeat(2, 1fr);
  }
}

.app-feature {
  display: flex;
  gap: 16px;
  padding: 20px;
  background: var(--bg-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

.app-feature-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

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

.app-feature p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.download-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 32px;
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.download-btn:hover {
  border-color: var(--secondary-color);
  background: var(--bg-light);
}

.download-btn-icon {
  font-size: 2rem;
}

.download-btn-text {
  text-align: left;
}

.download-btn-text span {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.download-btn-text strong {
  font-size: 1.1rem;
  color: var(--text-primary);
}

/* 作者信息 */
.author-box {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
  margin: 32px 0;
}

.author-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
}

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

.author-info h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.author-title {
  font-size: 0.85rem;
  color: var(--secondary-color);
  margin-bottom: 8px;
}

.author-bio {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 内容文章样式 */
.article-content {
  max-width: 800px;
  margin: 0 auto;
}

.article-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 32px 0 16px;
  color: var(--text-primary);
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 24px 0 12px;
  color: var(--text-primary);
}

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

.article-content ul,
.article-content ol {
  margin: 16px 0;
  padding-left: 24px;
  color: var(--text-secondary);
}

.article-content li {
  margin-bottom: 8px;
  line-height: 1.7;
}

.article-content img {
  border-radius: var(--border-radius);
  margin: 24px 0;
}

.article-content blockquote {
  padding: 20px 24px;
  background: var(--bg-card);
  border-left: 4px solid var(--secondary-color);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  margin: 24px 0;
  font-style: italic;
  color: var(--text-secondary);
}

/* 响应式图片 */
.responsive-img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
}

/* 加载动画 */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

/* 年龄验证弹窗 */
.age-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.age-modal-content {
  background: var(--bg-card);
  padding: 40px;
  border-radius: var(--border-radius-lg);
  text-align: center;
  max-width: 400px;
  width: 90%;
}

.age-modal-content h2 {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.age-modal-content p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.age-modal-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* 隐藏类 */
.hidden {
  display: none !important;
}

/* 视觉稳定性 - 防止布局偏移 */
.img-placeholder {
  background: var(--bg-card);
}

/* 打印样式 */
@media print {
  .site-header,
  .site-footer,
  .btn-cta {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
}