/* =============================================
   蘑菇视频 - 现代极简高端风格 主样式文件
   Modern Minimal High-end Style
   ============================================= */

/* ---- CSS Variables ---- */
:root {
  --color-bg: #FAFAF8;
  --color-white: #FFFFFF;
  --color-text-primary: #1A1A1A;
  --color-text-secondary: #6B6B6B;
  --color-text-muted: #9E9E9E;
  --color-accent: #2D6A4F;
  --color-accent-light: #52B788;
  --color-accent-hover: #1B4332;
  --color-border: #E8E8E4;
  --color-card-bg: #FFFFFF;
  --color-tag-bg: #F0F4F1;
  --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-display: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 4px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: color var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font-sans); }
input, textarea { font-family: var(--font-sans); }

/* ---- Layout ---- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section--light { background-color: var(--color-white); }
.section--bg { background-color: #F5F7F5; }

/* ---- Header / Navigation ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(250, 250, 248, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}
.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
}
.main-nav { display: flex; align-items: center; gap: 32px; }
.main-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  letter-spacing: 0.01em;
  position: relative;
  padding-bottom: 2px;
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.main-nav a:hover { color: var(--color-text-primary); }
.main-nav a:hover::after { width: 100%; }
.main-nav a.active { color: var(--color-accent); }
.main-nav a.active::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.btn-download {
  padding: 8px 20px;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  transition: background var(--transition), transform var(--transition);
}
.btn-download:hover { background: var(--color-accent-hover); transform: translateY(-1px); }
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.hamburger span { width: 22px; height: 2px; background: var(--color-text-primary); border-radius: 2px; transition: var(--transition); }

/* ---- Search Bar ---- */
.search-bar-wrap {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0;
}
.search-bar-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 640px;
  margin: 0 auto;
  padding: 0 24px;
}
.search-input-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: 100px;
  padding: 0 16px;
  gap: 10px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.search-input-wrap:focus-within {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(45,106,79,0.1);
}
.search-input-wrap svg { color: var(--color-text-muted); flex-shrink: 0; }
.search-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 9px 0;
  font-size: 0.9rem;
  color: var(--color-text-primary);
  outline: none;
}
.search-input::placeholder { color: var(--color-text-muted); }
.search-btn {
  padding: 9px 22px;
  background: var(--color-accent);
  color: #fff;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  transition: background var(--transition);
  white-space: nowrap;
}
.search-btn:hover { background: var(--color-accent-hover); }

/* ---- Hero Banner ---- */
.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #1A1A1A;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/banner_hero.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.55;
  transform: scale(1.02);
  transition: transform 8s ease;
}
.hero:hover .hero-bg { transform: scale(1.06); }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,26,26,0.7) 0%, rgba(45,106,79,0.3) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding: 100px 0;
  max-width: 680px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.9);
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.hero h1 span { color: var(--color-accent-light); }
.hero p {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 36px;
  max-width: 520px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
  padding: 14px 32px;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 700;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 16px rgba(45,106,79,0.35);
}
.btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(45,106,79,0.4); }
.btn-secondary {
  padding: 14px 32px;
  background: rgba(255,255,255,0.12);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  backdrop-filter: blur(8px);
  transition: background var(--transition), border-color var(--transition);
}
.btn-secondary:hover { background: rgba(255,255,255,0.2); border-color: rgba(255,255,255,0.5); }

/* ---- Section Header ---- */
.section-header { text-align: center; margin-bottom: 56px; }
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  font-weight: 800;
  color: var(--color-text-primary);
  letter-spacing: -0.03em;
  line-height: 1.25;
  margin-bottom: 14px;
}
.section-desc {
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ---- Brand Intro ---- */
.brand-intro { padding: 80px 0; }
.brand-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.brand-intro-text h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  line-height: 1.3;
}
.brand-intro-text p {
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  line-height: 1.9;
}
.brand-intro-stats { display: flex; gap: 40px; margin-top: 36px; }
.stat-item { text-align: center; }
.stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.04em;
  line-height: 1;
}
.stat-label { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 4px; }
.brand-intro-image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.brand-intro-image img { width: 100%; height: 360px; object-fit: cover; transition: transform 0.6s ease; }
.brand-intro-image:hover img { transform: scale(1.04); }

/* ---- Video Cards ---- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.video-card {
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.video-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #E8E8E4;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.08); }
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0);
  transition: background var(--transition);
}
.video-card:hover .video-play-btn { background: rgba(0,0,0,0.35); }
.play-icon {
  width: 52px;
  height: 52px;
  background: rgba(255,255,255,0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity var(--transition), transform var(--transition);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.video-card:hover .play-icon { opacity: 1; transform: scale(1); }
.play-icon svg { color: var(--color-accent); margin-left: 3px; }
.video-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0,0,0,0.7);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}
.video-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.7rem;
  padding: 3px 10px;
  border-radius: 100px;
  font-weight: 700;
}
.video-info { padding: 16px; }
.video-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }

/* ---- Categories ---- */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.category-card {
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.category-card:hover { border-color: var(--color-accent); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.category-icon {
  width: 48px;
  height: 48px;
  background: var(--color-tag-bg);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 1.5rem;
  transition: background var(--transition);
}
.category-card:hover .category-icon { background: rgba(45,106,79,0.1); }
.category-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 6px;
}
.category-desc {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}
.category-count {
  margin-top: 14px;
  font-size: 0.78rem;
  color: var(--color-accent);
  font-weight: 600;
}

/* ---- Stats Section ---- */
.stats-section {
  background: var(--color-text-primary);
  padding: 72px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}
.stats-item {}
.stats-num {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--color-accent-light);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 8px;
}
.stats-label {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.65);
  font-weight: 500;
}

/* ---- Reviews ---- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.review-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.review-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.review-header { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-tag-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-accent);
  flex-shrink: 0;
}
.review-user-name { font-size: 0.95rem; font-weight: 700; color: var(--color-text-primary); }
.review-stars { color: #F59E0B; font-size: 0.8rem; margin-top: 2px; }
.review-content {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  font-style: italic;
}
.review-content::before { content: '"'; font-size: 1.5rem; color: var(--color-accent); line-height: 0; vertical-align: -0.4em; margin-right: 4px; }

/* ---- FAQ ---- */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-item:first-child { border-top: 1px solid var(--color-border); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text-primary);
  text-align: left;
  gap: 16px;
  transition: color var(--transition);
}
.faq-question:hover { color: var(--color-accent); }
.faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border: 1.5px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}
.faq-item.open .faq-icon { background: var(--color-accent); border-color: var(--color-accent); transform: rotate(45deg); }
.faq-icon svg { color: var(--color-text-muted); transition: color var(--transition); }
.faq-item.open .faq-icon svg { color: #fff; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}
.faq-item.open .faq-answer { max-height: 200px; }
.faq-answer p {
  padding-bottom: 22px;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.9;
}

/* ---- Join / CTA ---- */
.cta-section {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
  padding: 80px 0;
  text-align: center;
}
.cta-section h2 {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}
.cta-section p { color: rgba(255,255,255,0.8); margin-bottom: 36px; font-size: 1rem; }
.cta-form { display: flex; gap: 12px; max-width: 480px; margin: 0 auto; }
.cta-input {
  flex: 1;
  padding: 14px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  outline: none;
  background: rgba(255,255,255,0.95);
  color: var(--color-text-primary);
}
.cta-input::placeholder { color: var(--color-text-muted); }
.cta-submit {
  padding: 14px 28px;
  background: var(--color-text-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 700;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}
.cta-submit:hover { background: #333; transform: translateY(-1px); }

/* ---- Footer ---- */
.site-footer {
  background: var(--color-text-primary);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.footer-brand p { font-size: 0.85rem; line-height: 1.8; max-width: 280px; }
.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: rgba(255,255,255,0.9); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-copyright { font-size: 0.82rem; color: rgba(255,255,255,0.4); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 0.82rem; color: rgba(255,255,255,0.4); transition: color var(--transition); }
.footer-links a:hover { color: rgba(255,255,255,0.8); }
.footer-update { font-size: 0.82rem; color: rgba(255,255,255,0.4); }

/* ---- Hot Topics ---- */
.topics-list { display: flex; flex-direction: column; gap: 16px; }
.topic-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  cursor: pointer;
}
.topic-item:hover { border-color: var(--color-accent); box-shadow: var(--shadow-sm); transform: translateX(4px); }
.topic-rank {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-border);
  min-width: 32px;
  line-height: 1;
  margin-top: 2px;
}
.topic-item:nth-child(1) .topic-rank { color: var(--color-accent); }
.topic-item:nth-child(2) .topic-rank { color: #6B9E7A; }
.topic-item:nth-child(3) .topic-rank { color: #95BEA4; }
.topic-content { flex: 1; }
.topic-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 8px;
  line-height: 1.5;
}
.topic-meta { display: flex; gap: 16px; font-size: 0.78rem; color: var(--color-text-muted); }
.topic-meta span { display: flex; align-items: center; gap: 4px; }

/* ---- Breadcrumb ---- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  padding: 16px 0;
}
.breadcrumb a { color: var(--color-text-muted); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb span { color: var(--color-text-muted); }
.breadcrumb .current { color: var(--color-text-secondary); }

/* ---- Page Hero (inner pages) ---- */
.page-hero {
  background: var(--color-text-primary);
  padding: 64px 0;
  text-align: center;
}
.page-hero h1 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}
.page-hero p { color: rgba(255,255,255,0.65); font-size: 1rem; }

/* ---- Ranking Table ---- */
.rank-table { width: 100%; border-collapse: collapse; }
.rank-table th {
  text-align: left;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 12px 16px;
  border-bottom: 2px solid var(--color-border);
}
.rank-table td {
  padding: 16px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  vertical-align: middle;
}
.rank-table tr:hover td { background: var(--color-bg); }
.rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 800;
  background: var(--color-tag-bg);
  color: var(--color-text-muted);
}
.rank-badge.gold { background: #FEF3C7; color: #D97706; }
.rank-badge.silver { background: #F1F5F9; color: #64748B; }
.rank-badge.bronze { background: #FEF2F2; color: #DC2626; }
.creator-info { display: flex; align-items: center; gap: 12px; }
.creator-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--color-tag-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--color-accent);
  font-size: 0.9rem;
}
.creator-name { font-weight: 600; color: var(--color-text-primary); }

/* ---- Discover / Masonry ---- */
.discover-grid {
  columns: 4;
  column-gap: 20px;
}
.discover-item {
  break-inside: avoid;
  margin-bottom: 20px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition), transform var(--transition);
  cursor: pointer;
}
.discover-item:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.discover-item img { width: 100%; display: block; }
.discover-item-info { padding: 14px; }
.discover-item-title { font-size: 0.88rem; font-weight: 600; color: var(--color-text-primary); margin-bottom: 6px; }
.discover-item-meta { font-size: 0.76rem; color: var(--color-text-muted); }

/* ---- Mobile Navigation ---- */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 2000;
}
.mobile-nav-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: 280px;
  height: 100%;
  background: var(--color-white);
  padding: 24px;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}
.mobile-nav.open { display: block; }
.mobile-nav.open .mobile-nav-panel { transform: translateX(0); }
.mobile-nav-links { display: flex; flex-direction: column; gap: 0; margin-top: 32px; }
.mobile-nav-links a {
  padding: 16px 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border);
}
.mobile-nav-close { position: absolute; top: 20px; right: 20px; font-size: 1.5rem; color: var(--color-text-muted); }

/* ---- Utility ---- */
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-24 { margin-bottom: 24px; }
.tag {
  display: inline-block;
  padding: 3px 12px;
  background: var(--color-tag-bg);
  color: var(--color-accent);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
}
.view-all {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  transition: gap var(--transition);
}
.view-all:hover { gap: 10px; }
.section-footer { text-align: center; margin-top: 48px; }

/* ---- Animations ---- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-fade-up { animation: fadeInUp 0.6s ease forwards; }
.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .brand-intro-grid { gap: 48px; }
  .discover-grid { columns: 3; }
}
@media (max-width: 768px) {
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .hero-content { padding: 80px 0; }
  .brand-intro-grid { grid-template-columns: 1fr; gap: 32px; }
  .brand-intro-stats { justify-content: center; }
  .video-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .reviews-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-form { flex-direction: column; }
  .discover-grid { columns: 2; }
  .section { padding: 60px 0; }
}
@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .categories-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .discover-grid { columns: 1; }
  .hero h1 { font-size: 1.8rem; }
  .container { padding: 0 16px; }
}