/* ============================================
   无限臀山 - 原创样式表
   配色方案：活力橙 + 深邃蓝黑 + 电竞红
   ============================================ */

/* CSS变量定义 */
:root {
  --primary: #FF6B35;
  --secondary: #1A1A2E;
  --accent: #E94560;
  --bg-dark: #0F0F23;
  --bg-card: #16162A;
  --bg-card-hover: #1E1E3A;
  --text-light: #EAEAEA;
  --text-muted: #A0A0B8;
  --text-dim: #6B6B80;
  --border-color: #2A2A45;
  --gradient-primary: linear-gradient(135deg, #FF6B35, #E94560);
  --gradient-dark: linear-gradient(180deg, #0F0F23, #1A1A2E);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 8px 32px rgba(233, 69, 96, 0.2);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s ease;
  --max-width: 1280px;
}

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

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

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

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

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

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

ul, ol {
  list-style: none;
}

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

/* ============ 头部导航 ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(15, 15, 35, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  height: 68px;
}

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

.site-logo img {
  height: 42px;
  width: auto;
}

.site-logo span {
  font-size: 1.3rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.main-nav a {
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text-light);
  background: rgba(255, 107, 53, 0.12);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
}

/* 搜索框 */
.search-bar {
  background: var(--secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 0;
  margin-top: 68px;
}

.search-bar .container {
  display: flex;
  justify-content: center;
}

.search-wrapper {
  display: flex;
  max-width: 600px;
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  overflow: hidden;
  transition: var(--transition);
}

.search-wrapper:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.15);
}

.search-wrapper input {
  flex: 1;
  background: transparent;
  border: none;
  padding: 12px 24px;
  color: var(--text-light);
  font-size: 0.95rem;
  outline: none;
}

.search-wrapper input::placeholder {
  color: var(--text-dim);
}

.search-wrapper button {
  background: var(--gradient-primary);
  border: none;
  padding: 12px 28px;
  color: #fff;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

.search-wrapper button:hover {
  opacity: 0.9;
}

/* ============ Hero Banner ============ */
.hero-banner {
  position: relative;
  height: 520px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-banner .hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.45);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 0 20px;
}

.hero-content h1 {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.3;
}

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

.hero-content p {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  line-height: 1.8;
}

.hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient-primary);
  color: #fff;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.35);
  color: #fff;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text-light);
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  border: 2px solid var(--primary);
  cursor: pointer;
  transition: var(--transition);
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

/* ============ 通用区块标题 ============ */
.section {
  padding: 72px 0;
}

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

.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.section-header h2 .hl {
  color: var(--primary);
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 640px;
  margin: 0 auto;
}

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

/* ============ 视频卡片网格 ============ */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

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

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255, 107, 53, 0.3);
}

.video-thumb {
  position: relative;
  padding-top: 56.25%;
  overflow: hidden;
}

.video-thumb img,
.video-thumb video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 64px;
  height: 64px;
  background: rgba(255, 107, 53, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.video-play-btn::after {
  content: "";
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 12px 0 12px 20px;
  border-color: transparent transparent transparent #fff;
  margin-left: 4px;
}

.video-card:hover .video-play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 500;
}

.video-info {
  padding: 16px;
}

.video-info h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  display: flex;
  gap: 16px;
  color: var(--text-dim);
  font-size: 0.85rem;
}

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

.video-tags {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.video-tags span {
  background: rgba(255, 107, 53, 0.1);
  color: var(--primary);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
}

/* ============ 模块卡片（游戏传媒/AI赋能等） ============ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

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

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255, 107, 53, 0.3);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--gradient-primary);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

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

/* ============ 专家展示 ============ */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

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

.expert-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: rgba(255, 107, 53, 0.3);
}

.expert-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  margin: 0 auto 16px;
  object-fit: cover;
  border: 3px solid var(--primary);
}

.expert-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.expert-role {
  color: var(--primary);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.expert-card p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.expert-links {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.expert-links a {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 500;
}

.expert-links .btn-sm-primary {
  background: var(--gradient-primary);
  color: #fff;
}

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

.expert-links .btn-sm-outline:hover {
  background: var(--primary);
  color: #fff;
}

/* ============ 社区模块 ============ */
.community-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

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

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

.community-card .icon-circle {
  width: 56px;
  height: 56px;
  margin: 0 auto 14px;
  background: rgba(255, 107, 53, 0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.community-card h4 {
  font-size: 1rem;
  margin-bottom: 6px;
}

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

/* ============ 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-sm);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  padding: 18px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
}

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

.faq-question .faq-toggle {
  font-size: 1.3rem;
  transition: transform 0.3s ease;
  color: var(--primary);
}

.faq-item.active .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 24px 18px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

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

/* ============ 用户评论 ============ */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

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

.review-card:hover {
  border-color: rgba(255, 107, 53, 0.3);
}

.review-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
}

.review-name {
  font-weight: 600;
  font-size: 0.95rem;
}

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

.review-stars {
  color: #FFB800;
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.review-text {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ============ 联系我们 ============ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

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

.contact-card h4 {
  font-size: 1.05rem;
  margin-bottom: 12px;
  color: var(--primary);
}

.contact-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

.contact-card img {
  max-width: 160px;
  margin: 12px auto 0;
  border-radius: var(--radius-sm);
}

/* ============ 合作品牌 ============ */
.partner-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px;
  align-items: center;
}

.partner-logos .partner-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 20px 32px;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
}

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

/* ============ How-To 指南 ============ */
.howto-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.howto-step {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  position: relative;
}

.step-num {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0 auto 16px;
}

.howto-step h4 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.howto-step p {
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* ============ 页脚 ============ */
.site-footer {
  background: #0A0A1A;
  border-top: 1px solid var(--border-color);
  padding: 48px 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-color);
}

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

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-light);
}

.footer-col a {
  display: block;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 4px 0;
  transition: var(--transition);
}

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

.footer-qr {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}

.footer-qr img {
  width: 100px;
  border-radius: var(--radius-sm);
}

.footer-bottom {
  padding: 20px 0;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85rem;
}

.footer-bottom a {
  color: var(--text-dim);
}

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

/* ============ 分享按钮 ============ */
.share-bar {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: 50px;
  font-size: 0.88rem;
  font-weight: 500;
  color: #fff;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.share-btn:hover {
  transform: translateY(-2px);
  opacity: 0.9;
  color: #fff;
}

.share-wechat { background: #07C160; }
.share-weibo { background: #E6162D; }
.share-douyin { background: #161823; border: 1px solid #333; }
.share-bilibili { background: #00A1D6; }

/* ============ 面包屑 ============ */
.breadcrumb {
  padding: 16px 0;
  margin-top: 68px;
}

.breadcrumb-list {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.88rem;
  color: var(--text-dim);
}

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

.breadcrumb-list .sep {
  color: var(--text-dim);
}

.breadcrumb-list .current {
  color: var(--primary);
}

/* ============ 内页标题 ============ */
.page-hero {
  background: var(--secondary);
  padding: 48px 0;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.page-hero h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.page-hero p {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ============ 内容文章 ============ */
.article-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 48px 20px;
}

.article-content h2 {
  font-size: 1.6rem;
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}

.article-content h3 {
  font-size: 1.3rem;
  margin: 24px 0 12px;
  color: var(--primary);
}

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

.article-content ul {
  margin: 12px 0 16px 24px;
}

.article-content ul li {
  color: var(--text-muted);
  padding: 4px 0;
  position: relative;
  padding-left: 16px;
}

.article-content ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
}

/* ============ 数据统计条 ============ */
.stats-bar {
  background: var(--gradient-primary);
  padding: 40px 0;
}

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

.stat-item h3 {
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
}

.stat-item p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
  margin-top: 4px;
}

/* ============ MCP前端代码区域 ============ */
.mcp-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 24px;
}

.mcp-section h4 {
  color: var(--primary);
  margin-bottom: 12px;
}

.mcp-code {
  background: #0A0A1A;
  border-radius: var(--radius-sm);
  padding: 16px;
  font-family: "Fira Code", "Consolas", monospace;
  font-size: 0.85rem;
  color: var(--text-muted);
  overflow-x: auto;
  line-height: 1.6;
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: fixed;
    top: 68px;
    left: 0;
    width: 100%;
    background: rgba(15, 15, 35, 0.98);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    gap: 4px;
  }
  .main-nav.open {
    display: flex;
  }
  .main-nav a {
    padding: 12px 16px;
    width: 100%;
  }
  .nav-toggle {
    display: block;
  }
  .hero-banner {
    height: 400px;
  }
  .hero-content h1 {
    font-size: 1.8rem;
  }
  .hero-content p {
    font-size: 1rem;
  }
  .section {
    padding: 48px 0;
  }
  .section-header h2 {
    font-size: 1.6rem;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .stat-item h3 {
    font-size: 1.6rem;
  }
  .video-grid {
    grid-template-columns: 1fr;
  }
  .expert-grid {
    grid-template-columns: 1fr;
  }
  .review-grid {
    grid-template-columns: 1fr;
  }
  .page-hero h1 {
    font-size: 1.6rem;
  }
}

@media (max-width: 480px) {
  .hero-banner {
    height: 340px;
  }
  .hero-content h1 {
    font-size: 1.5rem;
  }
  .hero-btns {
    flex-direction: column;
    align-items: center;
  }
  .search-wrapper {
    flex-direction: column;
    border-radius: var(--radius);
  }
  .search-wrapper button {
    border-radius: 0 0 var(--radius) var(--radius);
  }
}

/* ============ 懒加载 ============ */
img[data-src] {
  opacity: 0;
  transition: opacity 0.4s ease;
}

img[data-src].loaded {
  opacity: 1;
}

/* ============ 动画 ============ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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