/* ===================================================
   香蕉视频 官方网站 - 主样式表
   暗黑潮流·霓虹赛博朋克风格
   =================================================== */

/* ---------- CSS 变量 ---------- */
:root {
  --color-bg: #050508;
  --color-bg2: #0a0a12;
  --color-bg3: #0f0f1a;
  --color-gold: #f5c518;
  --color-gold2: #ffd700;
  --color-purple: #9b30ff;
  --color-purple2: #c77dff;
  --color-cyan: #00e5ff;
  --color-text: #e8e8f0;
  --color-text2: #a0a0b8;
  --color-border: rgba(155, 48, 255, 0.3);
  --gradient-main: linear-gradient(135deg, #9b30ff 0%, #f5c518 100%);
  --gradient-dark: linear-gradient(180deg, #050508 0%, #0a0a12 100%);
  --shadow-neon-gold: 0 0 20px rgba(245, 197, 24, 0.5), 0 0 40px rgba(245, 197, 24, 0.2);
  --shadow-neon-purple: 0 0 20px rgba(155, 48, 255, 0.5), 0 0 40px rgba(155, 48, 255, 0.2);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.6);
  --radius: 12px;
  --radius-sm: 6px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- 重置与基础 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--color-gold); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-purple2); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ---------- 粒子背景 ---------- */
#particles-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* ---------- 容器 ---------- */
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }

/* ---------- 标题 ---------- */
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  text-align: center;
  margin-bottom: 12px;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-subtitle {
  text-align: center;
  color: var(--color-text2);
  font-size: 1rem;
  margin-bottom: 48px;
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(5, 5, 8, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.logo-icon {
  width: 40px; height: 40px;
  background: var(--gradient-main);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  box-shadow: var(--shadow-neon-gold);
  flex-shrink: 0;
}
.logo-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  color: var(--color-text2);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--color-gold);
  background: rgba(245, 197, 24, 0.08);
}
.header-cta {
  background: var(--gradient-main);
  color: #000 !important;
  padding: 8px 20px !important;
  border-radius: 20px !important;
  font-weight: 700 !important;
  box-shadow: var(--shadow-neon-gold);
}
.header-cta:hover { opacity: 0.85; }
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}
.menu-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--color-gold);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ---------- 搜索栏 ---------- */
.search-bar-wrap {
  background: rgba(10, 10, 18, 0.95);
  border-bottom: 1px solid rgba(155, 48, 255, 0.15);
  padding: 10px 0;
}
.search-inner {
  display: flex;
  align-items: center;
  max-width: 720px;
  margin: 0 auto;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-border);
  border-radius: 30px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.search-inner:focus-within {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(245, 197, 24, 0.12);
}
.search-inner input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 10px 20px;
  color: var(--color-text);
  font-size: 0.95rem;
}
.search-inner input::placeholder { color: var(--color-text2); }
.search-btn {
  background: var(--gradient-main);
  border: none;
  cursor: pointer;
  padding: 10px 24px;
  color: #000;
  font-weight: 700;
  font-size: 0.9rem;
  transition: opacity var(--transition);
}
.search-btn:hover { opacity: 0.85; }

/* ---------- 首屏 Banner ---------- */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero_banner.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.45);
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(5,5,8,0.7) 0%, rgba(155,48,255,0.15) 50%, rgba(5,5,8,0.8) 100%);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 197, 24, 0.1);
  border: 1px solid rgba(245, 197, 24, 0.4);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 0.85rem;
  color: var(--color-gold);
  margin-bottom: 24px;
  animation: pulse-gold 2s infinite;
}
@keyframes pulse-gold {
  0%, 100% { box-shadow: 0 0 0 0 rgba(245,197,24,0.4); }
  50% { box-shadow: 0 0 0 8px rgba(245,197,24,0); }
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.8);
}
.hero h1 .brand-highlight {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.1rem;
  color: rgba(232,232,240,0.85);
  margin-bottom: 36px;
  max-width: 580px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient-main);
  color: #000;
  font-weight: 800;
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: 30px;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-neon-gold);
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 30px rgba(245,197,24,0.6); color: #000; }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: 30px;
  border: 1px solid rgba(232,232,240,0.3);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-outline:hover { border-color: var(--color-purple2); color: var(--color-purple2); background: rgba(155,48,255,0.08); }
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  flex-wrap: wrap;
}
.hero-stat { text-align: left; }
.hero-stat .num {
  font-size: 1.8rem;
  font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat .label { font-size: 0.8rem; color: var(--color-text2); }

/* ---------- 视频卡片 ---------- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.video-card {
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-gold);
  box-shadow: var(--shadow-neon-gold);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #111;
}
.video-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}
.video-card:hover .video-thumb img { transform: scale(1.05); }
.play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.4);
  opacity: 0;
  transition: opacity var(--transition);
}
.video-card:hover .play-overlay { opacity: 1; }
.play-btn {
  width: 60px; height: 60px;
  background: rgba(245, 197, 24, 0.9);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 30px rgba(245,197,24,0.6);
  transition: transform var(--transition);
}
.play-btn:hover { transform: scale(1.1); }
.play-btn svg { width: 24px; height: 24px; fill: #000; margin-left: 4px; }
.video-duration {
  position: absolute;
  bottom: 8px; right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-info { padding: 16px; }
.video-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--color-text2);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }
.video-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }
.tag {
  background: rgba(155, 48, 255, 0.12);
  border: 1px solid rgba(155, 48, 255, 0.3);
  color: var(--color-purple2);
  font-size: 0.72rem;
  padding: 2px 10px;
  border-radius: 10px;
}

/* ---------- 社区模块 ---------- */
.community-section { background: var(--color-bg2); }
.community-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}
.danmaku-box {
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  min-height: 220px;
  overflow: hidden;
  position: relative;
}
.danmaku-title { font-size: 0.85rem; color: var(--color-text2); margin-bottom: 16px; }
.danmaku-stream { position: relative; height: 160px; overflow: hidden; }
.danmaku-item {
  position: absolute;
  white-space: nowrap;
  font-size: 0.9rem;
  padding: 4px 12px;
  border-radius: 20px;
  animation: danmaku-fly 8s linear infinite;
  opacity: 0.9;
}
@keyframes danmaku-fly {
  0% { transform: translateX(100vw); opacity: 0; }
  5% { opacity: 0.9; }
  95% { opacity: 0.9; }
  100% { transform: translateX(-120%); opacity: 0; }
}
.topic-list { display: flex; flex-direction: column; gap: 16px; }
.topic-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 20px;
  transition: all var(--transition);
}
.topic-item:hover { border-color: var(--color-gold); background: rgba(245,197,24,0.04); }
.topic-name { font-weight: 700; color: var(--color-gold); font-size: 0.95rem; }
.topic-stats { font-size: 0.8rem; color: var(--color-text2); }
.hot-badge {
  background: linear-gradient(135deg, #ff416c, #ff4b2b);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
}

/* ---------- AI 模块 ---------- */
.ai-section { background: var(--color-bg); }
.ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.ai-img-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-neon-purple);
}
.ai-tools-list { display: flex; flex-direction: column; gap: 20px; }
.ai-tool-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px;
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: all var(--transition);
}
.ai-tool-item:hover { border-color: var(--color-purple); box-shadow: var(--shadow-neon-purple); }
.ai-tool-icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--color-purple), var(--color-gold));
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.ai-tool-name { font-weight: 700; margin-bottom: 4px; }
.ai-tool-desc { font-size: 0.85rem; color: var(--color-text2); }

/* ---------- 专家模块 ---------- */
.experts-section { background: var(--color-bg2); }
.experts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}
.expert-card {
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  transition: all var(--transition);
}
.expert-card:hover { transform: translateY(-4px); border-color: var(--color-gold); box-shadow: var(--shadow-neon-gold); }
.expert-avatar {
  width: 88px; height: 88px;
  border-radius: 50%;
  margin: 0 auto 16px;
  border: 3px solid var(--color-gold);
  object-fit: cover;
  box-shadow: var(--shadow-neon-gold);
}
.expert-name { font-size: 1.1rem; font-weight: 800; margin-bottom: 4px; }
.expert-title { font-size: 0.82rem; color: var(--color-gold); margin-bottom: 10px; }
.expert-desc { font-size: 0.85rem; color: var(--color-text2); line-height: 1.6; }

/* ---------- 口碑模块 ---------- */
.reviews-section { background: var(--color-bg); }
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.review-card {
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all var(--transition);
}
.review-card:hover { border-color: var(--color-purple2); box-shadow: var(--shadow-neon-purple); }
.review-stars { color: var(--color-gold); font-size: 1rem; margin-bottom: 12px; }
.review-content { font-size: 0.9rem; color: var(--color-text); line-height: 1.7; margin-bottom: 16px; }
.review-user { display: flex; align-items: center; gap: 12px; }
.review-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  color: #000;
  flex-shrink: 0;
}
.review-name { font-weight: 700; font-size: 0.9rem; }
.review-date { font-size: 0.75rem; color: var(--color-text2); }

/* ---------- 合作模块 ---------- */
.partners-section { background: var(--color-bg2); }
.partners-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  margin-bottom: 60px;
}
.partner-logo {
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 28px;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-text2);
  transition: all var(--transition);
}
.partner-logo:hover { border-color: var(--color-gold); color: var(--color-gold); }

/* ---------- FAQ ---------- */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.95rem;
  transition: color var(--transition);
  user-select: none;
}
.faq-q:hover { color: var(--color-gold); }
.faq-q .arrow {
  width: 20px; height: 20px;
  border: 2px solid currentColor;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem;
  flex-shrink: 0;
  transition: transform var(--transition);
}
.faq-item.open .faq-q .arrow { transform: rotate(180deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  font-size: 0.88rem;
  color: var(--color-text2);
  line-height: 1.7;
  padding: 0 24px;
}
.faq-item.open .faq-a { max-height: 200px; padding: 0 24px 18px; }

/* ---------- 联系模块 ---------- */
.contact-section { background: var(--color-bg); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
}
.contact-card {
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition);
}
.contact-card:hover { border-color: var(--color-gold); box-shadow: var(--shadow-neon-gold); }
.contact-icon { font-size: 2.4rem; margin-bottom: 16px; }
.contact-label { font-size: 0.8rem; color: var(--color-text2); margin-bottom: 8px; }
.contact-value { font-weight: 700; font-size: 0.95rem; word-break: break-all; }
.qr-placeholder {
  width: 100px; height: 100px;
  background: linear-gradient(135deg, var(--color-purple), var(--color-gold));
  border-radius: 12px;
  margin: 16px auto 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem;
  color: #000;
  font-weight: 700;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--color-bg2);
  border-top: 1px solid var(--color-border);
  padding: 48px 0 24px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 0.85rem; color: var(--color-text2); line-height: 1.7; }
.footer-col h4 { font-size: 0.9rem; font-weight: 700; color: var(--color-text); margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: 0.85rem; color: var(--color-text2); transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--color-gold); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--color-text2);
}
.footer-social { display: flex; gap: 12px; }
.social-btn {
  width: 36px; height: 36px;
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
  transition: all var(--transition);
  color: var(--color-text2);
}
.social-btn:hover { border-color: var(--color-gold); color: var(--color-gold); background: rgba(245,197,24,0.08); }

/* ---------- 内页 Banner ---------- */
.inner-hero {
  background: linear-gradient(135deg, var(--color-bg2) 0%, rgba(155,48,255,0.1) 100%);
  border-bottom: 1px solid var(--color-border);
  padding: 60px 0;
  text-align: center;
}
.inner-hero h1 { font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 900; margin-bottom: 12px; }
.inner-hero p { color: var(--color-text2); font-size: 1rem; max-width: 600px; margin: 0 auto; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--color-text2);
  margin-bottom: 20px;
  justify-content: center;
}
.breadcrumb a { color: var(--color-gold); }
.breadcrumb span { color: var(--color-text2); }

/* ---------- 滚动进度条 ---------- */
#scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  background: var(--gradient-main);
  z-index: 9999;
  transition: width 0.1s linear;
}

/* ---------- 回到顶部 ---------- */
#back-top {
  position: fixed;
  bottom: 32px; right: 32px;
  width: 44px; height: 44px;
  background: var(--gradient-main);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-neon-gold);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition);
  z-index: 999;
  border: none;
  color: #000;
  font-size: 1.1rem;
  font-weight: 900;
}
#back-top.visible { opacity: 1; transform: translateY(0); }
#back-top:hover { transform: translateY(-4px); }

/* ---------- 加载动画 ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
  .ai-grid { grid-template-columns: 1fr; }
  .community-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .main-nav { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: rgba(5,5,8,0.98); padding: 16px; border-bottom: 1px solid var(--color-border); }
  .main-nav.open { display: flex; }
  .menu-toggle { display: flex; }
  .header-inner { position: relative; }
  .hero h1 { font-size: 2rem; }
  .hero-stats { gap: 24px; }
  .footer-top { grid-template-columns: 1fr; gap: 24px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .section { padding: 56px 0; }
  .video-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .experts-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
}