/* ============================================
   高清动漫 - 青春影视传媒创作社区
   原创CSS样式 | qjncae.cn
   ============================================ */

/* CSS Variables */
:root {
  --primary: #E8446D;
  --primary-dark: #C9325A;
  --secondary: #FF7B54;
  --dark: #1A1A2E;
  --light-bg: #FFF5F7;
  --text-color: #2D2D3A;
  --accent: #6C5CE7;
  --white: #FFFFFF;
  --gray-100: #F8F9FA;
  --gray-200: #E9ECEF;
  --gray-300: #DEE2E6;
  --gray-500: #6C757D;
  --gray-700: #495057;
  --shadow-sm: 0 2px 8px rgba(232,68,109,0.08);
  --shadow-md: 0 4px 20px rgba(232,68,109,0.12);
  --shadow-lg: 0 8px 40px rgba(26,26,46,0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --gradient: linear-gradient(135deg, #E8446D 0%, #FF7B54 100%);
  --gradient-dark: linear-gradient(135deg, #1A1A2E 0%, #2D2D3A 100%);
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-color);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--dark); }

/* Container */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.container-wide { max-width: 1400px; margin: 0 auto; padding: 0 20px; }

/* ============================================
   Header & Navigation
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(232,68,109,0.1);
  transition: var(--transition);
}
.site-header.scrolled {
  box-shadow: var(--shadow-md);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo img {
  height: 42px;
  width: auto;
}
.logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
  padding: 8px 16px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-color);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active {
  color: var(--primary);
  background: rgba(232,68,109,0.06);
}
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  margin: 6px 0;
  transition: var(--transition);
  border-radius: 2px;
}

/* Search Bar */
.search-bar {
  background: var(--light-bg);
  padding: 12px 0;
  border-bottom: 1px solid rgba(232,68,109,0.06);
  margin-top: 70px;
}
.search-form {
  display: flex;
  align-items: center;
  max-width: 680px;
  margin: 0 auto;
  background: var(--white);
  border: 2px solid rgba(232,68,109,0.15);
  border-radius: 50px;
  overflow: hidden;
  transition: var(--transition);
}
.search-form:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(232,68,109,0.1);
}
.search-form input {
  flex: 1;
  border: none;
  outline: none;
  padding: 12px 24px;
  font-size: 0.95rem;
  background: transparent;
  color: var(--text-color);
}
.search-form input::placeholder { color: var(--gray-500); }
.search-form button {
  background: var(--gradient);
  border: none;
  color: var(--white);
  padding: 12px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.search-form button:hover { opacity: 0.9; }

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: var(--dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.55;
  transition: transform 0.5s ease;
}
.hero:hover .hero-bg { transform: scale(1.03); }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(26,26,46,0.4) 0%, rgba(26,26,46,0.75) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding: 60px 20px;
  max-width: 800px;
}
.hero-content h1 {
  font-size: 2.8rem;
  color: var(--white);
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.hero-content h1 span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-content p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 30px;
}
.hero-stat {
  text-align: center;
}
.hero-stat .num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--secondary);
}
.hero-stat .label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  margin-top: 4px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}
.btn-primary {
  background: var(--gradient);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(232,68,109,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(232,68,109,0.4);
  color: var(--white);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
  color: var(--white);
}
.btn-sm { padding: 8px 20px; font-size: 0.875rem; }
.btn-accent {
  background: var(--accent);
  color: var(--white);
}
.btn-accent:hover {
  background: #5A4BD1;
  color: var(--white);
  transform: translateY(-2px);
}

/* ============================================
   Section Styles
   ============================================ */
.section {
  padding: 80px 0;
}
.section-alt {
  background: var(--light-bg);
}
.section-dark {
  background: var(--gradient-dark);
  color: var(--white);
}
.section-title {
  text-align: center;
  margin-bottom: 50px;
}
.section-title h2 {
  font-size: 2rem;
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}
.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--gradient);
  border-radius: 3px;
}
.section-title p {
  color: var(--gray-500);
  font-size: 1.05rem;
  margin-top: 16px;
}
.section-dark .section-title h2 { color: var(--white); }
.section-dark .section-title p { color: rgba(255,255,255,0.7); }

/* ============================================
   Video Cards Grid
   ============================================ */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.video-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.video-thumb {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}
.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);
}
.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 64px;
  height: 64px;
  background: rgba(232,68,109,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(232,68,109,0.4);
}
.play-btn::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent white;
  margin-left: 4px;
}
.video-card:hover .play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: white;
  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;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--gray-500);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }
.video-tags {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.video-tag {
  padding: 3px 10px;
  background: rgba(232,68,109,0.08);
  color: var(--primary);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
}

/* ============================================
   Feature Cards
   ============================================ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 32px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid rgba(232,68,109,0.06);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(232,68,109,0.15);
}
.feature-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  background: var(--gradient);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--white);
}
.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.7;
}
.feature-card img {
  width: 100%;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

/* ============================================
   Community Section
   ============================================ */
.community-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.community-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.community-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.community-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.community-card-body {
  padding: 20px;
}
.community-card-body h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}
.community-card-body p {
  font-size: 0.9rem;
  color: var(--gray-500);
}
.community-tags {
  display: flex;
  gap: 6px;
  margin-top: 12px;
  flex-wrap: wrap;
}

/* ============================================
   Expert Section
   ============================================ */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.expert-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid rgba(232,68,109,0.06);
}
.expert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.expert-avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  margin: 0 auto 16px;
  object-fit: cover;
  border: 3px solid rgba(232,68,109,0.15);
}
.expert-card h3 {
  font-size: 1.05rem;
  margin-bottom: 4px;
}
.expert-role {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 10px;
}
.expert-desc {
  font-size: 0.85rem;
  color: var(--gray-500);
  line-height: 1.6;
  margin-bottom: 14px;
}
.expert-actions {
  display: flex;
  gap: 8px;
  justify-content: center;
}

/* ============================================
   Partner Logos
   ============================================ */
.ed1y7 {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px;
  align-items: center;
}
.d5xf58h1 {
  height: 48px;
  opacity: 0.5;
  filter: grayscale(100%);
  transition: var(--transition);
}
.d5xf58h1:hover {
  opacity: 1;
  filter: grayscale(0%);
}

/* ============================================
   FAQ Section
   ============================================ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  background: var(--white);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  border: 1px solid var(--gray-200);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: rgba(232,68,109,0.2);
}
.faq-question {
  padding: 18px 24px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
  user-select: none;
}
.faq-question:hover { color: var(--primary); }
.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--primary);
  transition: var(--transition);
  flex-shrink: 0;
  margin-left: 16px;
}
.faq-item.active .faq-question::after {
  content: '−';
}
.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}
.faq-item.active .faq-answer {
  padding: 0 24px 18px;
  max-height: 300px;
}
.faq-answer p {
  font-size: 0.95rem;
  color: var(--gray-500);
  line-height: 1.8;
}

/* ============================================
   Reviews Section
   ============================================ */
.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.review-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid rgba(232,68,109,0.06);
}
.review-card:hover {
  box-shadow: var(--shadow-md);
}
.review-stars {
  color: #FFB800;
  font-size: 1rem;
  margin-bottom: 12px;
  letter-spacing: 2px;
}
.review-text {
  font-size: 0.95rem;
  color: var(--gray-700);
  line-height: 1.8;
  margin-bottom: 16px;
  font-style: italic;
}
.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.review-author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 0.9rem;
}
.review-author-info .name {
  font-weight: 600;
  font-size: 0.9rem;
}
.review-author-info .date {
  font-size: 0.8rem;
  color: var(--gray-500);
}

/* ============================================
   Contact Section
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}
.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px;
  background: var(--white);
  border-radius: var(--radius-sm);
  border: 1px solid var(--gray-200);
}
.contact-icon {
  width: 44px;
  height: 44px;
  background: var(--gradient);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.2rem;
  flex-shrink: 0;
}
.contact-detail h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
}
.contact-detail p {
  font-size: 0.85rem;
  color: var(--gray-500);
}
.qrcode-group {
  display: flex;
  gap: 24px;
  justify-content: center;
  align-items: center;
}
.qrcode-item {
  text-align: center;
}
.qrcode-item img {
  width: 160px;
  height: 160px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}
.qrcode-item p {
  font-size: 0.85rem;
  color: var(--gray-500);
  font-weight: 500;
}

/* ============================================
   How-To Guide
   ============================================ */
.6jb4wi {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.axyep {
  text-align: center;
  padding: 24px 16px;
  position: relative;
}
.axyep::before {
  counter-increment: step;
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--gradient);
  color: var(--white);
  border-radius: 50%;
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 auto 16px;
}
.axyep h4 {
  font-size: 1rem;
  margin-bottom: 8px;
}
.axyep p {
  font-size: 0.85rem;
  color: var(--gray-500);
}

/* ============================================
   Social Share
   ============================================ */
.t9yiu38u {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.o5vnt3s {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--white);
  transition: var(--transition);
}
.o5vnt3s:hover { transform: translateY(-2px); color: var(--white); }
.d4myb { background: #07C160; }
.k84oarm { background: #E6162D; }
.2t6pu3s { background: #161823; }
.5ti19fq { background: #00A1D6; }

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .logo-text {
  font-size: 1.3rem;
  margin-bottom: 12px;
  display: block;
}
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 16px;
}
.footer-col h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  padding: 4px 0;
  transition: var(--transition);
}
.footer-col a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}
.footer-bottom a {
  color: rgba(255,255,255,0.6);
}
.footer-bottom a:hover {
  color: var(--primary);
}

/* ============================================
   Breadcrumb
   ============================================ */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-top: 70px;
}
.breadcrumb a { color: var(--primary); }
.breadcrumb span { margin: 0 8px; color: var(--gray-300); }

/* ============================================
   Inner Page Styles
   ============================================ */
.page-hero {
  background: var(--gradient);
  padding: 60px 0 40px;
  margin-top: 70px;
  text-align: center;
  color: var(--white);
}
.page-hero h1 {
  font-size: 2.2rem;
  color: var(--white);
  margin-bottom: 10px;
}
.page-hero p {
  font-size: 1.05rem;
  opacity: 0.9;
}
.page-content {
  padding: 50px 0;
}
.content-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(232,68,109,0.06);
}
.content-card h2 {
  font-size: 1.4rem;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid rgba(232,68,109,0.1);
}
.content-card h3 {
  font-size: 1.15rem;
  margin: 20px 0 10px;
  color: var(--primary);
}
.content-card p {
  margin-bottom: 12px;
  line-height: 1.8;
}
.content-card img {
  border-radius: var(--radius-sm);
  margin: 16px 0;
}

/* ============================================
   Lazy Load
   ============================================ */
.lazy {
  opacity: 1;
  transition: opacity 0.5s ease;
}
.lazy.loaded {
  opacity: 1;
}

/* ============================================
   Scroll Animation
   ============================================ */
.fade-in {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   MCP Service Frontend (Decorative)
   ============================================ */
.lvnftj {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-top: 20px;
  text-align: center;
}
.lvnftj p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .expert-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .6jb4wi { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  html { font-size: 15px; }
  .main-nav { display: none; }
  .main-nav.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 16px;
    box-shadow: var(--shadow-lg);
    border-top: 1px solid var(--gray-200);
  }
  .mobile-menu-btn { display: block; }
  .hero { min-height: 420px; }
  .hero-content h1 { font-size: 2rem; }
  .hero-stats { gap: 20px; }
  .hero-stat .num { font-size: 1.5rem; }
  .section { padding: 50px 0; }
  .section-title h2 { font-size: 1.6rem; }
  .video-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .community-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .6jb4wi { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .qrcode-group { flex-direction: column; }
}

@media (max-width: 480px) {
  .hero-content h1 { font-size: 1.6rem; }
  .hero-content p { font-size: 0.95rem; }
  .btn { padding: 10px 24px; font-size: 0.9rem; }
  .search-form input { padding: 10px 16px; }
  .search-form button { padding: 10px 20px; }
}