* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-pink: #ff6b9d;
  --secondary-pink: #ff8fab;
  --light-pink: #ffc2d4;
  --deep-pink: #ff4081;
  --purple: #c44569;
  --light-purple: #f39;
  --gradient-start: #ff6b9d;
  --gradient-end: #c44569;
  --text-dark: #2d2d2d;
  --text-light: #666666;
  --text-lighter: #999999;
  --bg-white: #ffffff;
  --bg-light: #fff5f7;
  --bg-card: #ffffff;
  --shadow-sm: 0 2px 8px rgba(255, 107, 157, 0.12);
  --shadow-md: 0 4px 16px rgba(255, 107, 157, 0.18);
  --shadow-lg: 0 8px 32px rgba(255, 107, 157, 0.25);
  --border-radius: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background: linear-gradient(135deg, #fff5f7 0%, #ffe8ee 50%, #ffd6e0 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

.page-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 107, 157, 0.12);
  z-index: 1000;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.main-header.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.98);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 32px;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 48px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.brand-logo:hover {
  transform: scale(1.05);
}

.logo-heart {
  font-size: 36px;
  animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

.brand-title {
  font-size: 26px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 2px;
}

.brand-tagline {
  font-size: 11px;
  color: var(--text-lighter);
  font-weight: 500;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 36px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  color: var(--text-light);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  padding: 8px 0;
  position: relative;
  transition: color 0.3s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-pink), var(--purple));
  transition: width 0.3s ease;
  border-radius: 2px;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-pink);
}

.nav-link.active::after,
.nav-link:hover::after {
  width: 100%;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-wrapper {
  display: flex;
  align-items: center;
  background: var(--bg-light);
  border-radius: 24px;
  padding: 0 8px 0 20px;
  border: 2px solid transparent;
  transition: all 0.3s ease;
}

.search-wrapper:focus-within {
  background: var(--bg-white);
  border-color: var(--primary-pink);
  box-shadow: 0 0 0 4px rgba(255, 107, 157, 0.1);
}

.search-input {
  width: 200px;
  padding: 10px 0;
  background: transparent;
  border: none;
  color: var(--text-dark);
  font-size: 14px;
  outline: none;
}

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

.search-btn {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary-pink), var(--deep-pink));
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.search-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(255, 107, 157, 0.4);
}

.profile-btn {
  width: 40px;
  height: 40px;
  background: var(--bg-light);
  border: 2px solid transparent;
  border-radius: 50%;
  color: var(--primary-pink);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.profile-btn:hover {
  background: linear-gradient(135deg, var(--primary-pink), var(--deep-pink));
  color: white;
  transform: scale(1.1);
  box-shadow: var(--shadow-md);
}

.main-content {
  margin-top: 72px;
  flex: 1;
}

.hero-banner {
  position: relative;
  height: 600px;
  overflow: hidden;
}

.banner-container {
  position: relative;
  height: 100%;
  max-width: 1400px;
  margin: 0 auto;
}

.banner-track {
  position: relative;
  height: 100%;
}

.banner-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.6s ease-in-out;
}

.banner-slide.active-slide {
  opacity: 1;
}

.slide-background {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 0 0 32px 32px;
  overflow: hidden;
}

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

.slide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 107, 157, 0.85) 0%, rgba(196, 69, 105, 0.65) 60%, transparent 100%);
}

.slide-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0 80px;
}

.content-wrapper {
  max-width: 600px;
  color: white;
}

.content-label {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.content-title {
  font-size: 56px;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.2;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.2);
}

.content-desc {
  font-size: 18px;
  line-height: 1.6;
  margin-bottom: 24px;
  opacity: 0.95;
}

.content-meta {
  display: flex;
  gap: 24px;
  margin-bottom: 32px;
  font-size: 15px;
  font-weight: 600;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

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

.action-btn {
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 28px;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
}

.primary-btn {
  background: white;
  color: var(--primary-pink);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.secondary-btn {
  background: rgba(255, 255, 255, 0.25);
  color: white;
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.secondary-btn:hover {
  background: rgba(255, 255, 255, 0.35);
  transform: translateY(-2px);
}

.banner-navigation {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  padding: 0 32px;
  pointer-events: none;
  z-index: 10;
}

.nav-arrow {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.9);
  border: none;
  border-radius: 50%;
  color: var(--primary-pink);
  font-size: 24px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  pointer-events: all;
  box-shadow: var(--shadow-md);
}

.nav-arrow:hover {
  background: white;
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
}

.banner-dots {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 10;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all 0.3s ease;
}

.dot.active-dot {
  width: 28px;
  border-radius: 5px;
  background: white;
}

.dot:hover {
  background: rgba(255, 255, 255, 0.8);
}

.content-section {
  padding: 80px 0;
}

.content-section.alternate-section {
  background: rgba(255, 255, 255, 0.4);
}

.section-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 32px;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
  position: relative;
}

.section-header::after {
  content: '';
  position: absolute;
  bottom: -16px;
  left: 0;
  width: 120px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-pink), transparent);
  border-radius: 2px;
}

.header-left {
  flex: 1;
}

.title-decoration {
  display: flex;
  align-items: center;
  gap: 20px;
}

.title-icon {
  font-size: 52px;
  line-height: 1;
  filter: drop-shadow(0 4px 8px rgba(255, 107, 157, 0.3));
  animation: iconFloat 3s ease-in-out infinite;
}

@keyframes iconFloat {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

.title-content {
  flex: 1;
}

.section-title {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 10px;
}

.title-main {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.1;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
  position: relative;
  display: inline-block;
}

.title-en {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-lighter);
  text-transform: uppercase;
  letter-spacing: 2px;
  opacity: 0.8;
  font-family: 'Arial', sans-serif;
}

.section-subtitle {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.6;
}

.view-all-link {
  color: var(--primary-pink);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: 20px;
  transition: all 0.3s ease;
}

.view-all-link:hover {
  background: var(--bg-light);
  gap: 10px;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
}

.video-card {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
}

.video-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.card-thumbnail {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: linear-gradient(135deg, var(--light-pink), var(--secondary-pink));
}

.card-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.video-card:hover .card-thumbnail img {
  transform: scale(1.1);
}

.thumbnail-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 107, 157, 0.8), rgba(196, 69, 105, 0.8));
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.video-card:hover .thumbnail-overlay {
  opacity: 1;
}

.play-btn {
  width: 56px;
  height: 56px;
  background: white;
  border: none;
  border-radius: 50%;
  color: var(--primary-pink);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.play-btn:hover {
  transform: scale(1.15);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.video-duration,
.video-quality,
.video-badge {
  position: absolute;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 8px;
  backdrop-filter: blur(10px);
}

.video-duration {
  bottom: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.75);
  color: white;
}

.video-quality {
  top: 10px;
  right: 10px;
  background: linear-gradient(135deg, var(--primary-pink), var(--deep-pink));
  color: white;
}

.video-badge {
  top: 10px;
  left: 10px;
  color: white;
  text-transform: uppercase;
}

.new-badge {
  background: linear-gradient(135deg, #ff6b9d, #ff4081);
}

.featured-badge {
  background: linear-gradient(135deg, #ffd700, #ffb700);
  color: #333;
}

.collection-badge {
  background: linear-gradient(135deg, #9b59b6, #8e44ad);
}

.card-info {
  padding: 16px;
}

.video-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-dark);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  white-space: normal;
  line-height: 1.4;
  min-height: 44px;
  transition: color 0.3s ease;
}

.video-card:hover .video-title {
  color: var(--primary-pink);
}

.video-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 10px;
}

.meta-views,
.meta-likes {
  display: flex;
  align-items: center;
  gap: 4px;
}

.video-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  padding: 4px 12px;
  background: var(--bg-light);
  color: var(--primary-pink);
  font-size: 12px;
  font-weight: 500;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.tag:hover {
  background: linear-gradient(135deg, var(--primary-pink), var(--deep-pink));
  color: white;
}

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

.category-card {
  background: var(--bg-white);
  border-radius: var(--border-radius);
  padding: 32px 24px;
  text-align: center;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
  border: 2px solid transparent;
}

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

.category-icon {
  font-size: 48px;
  margin-bottom: 16px;
  transition: transform 0.3s ease;
}

.category-card:hover .category-icon {
  transform: scale(1.2);
}

.category-name {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.category-count {
  font-size: 14px;
  color: var(--text-light);
}

.stats-banner {
  padding: 60px 0;
  background: linear-gradient(135deg, var(--primary-pink), var(--purple));
  color: white;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.stat-item {
  text-align: center;
  padding: 24px;
}

.stat-number {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 8px;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.2);
}

.stat-label {
  font-size: 16px;
  opacity: 0.95;
  font-weight: 500;
}

.main-footer {
  background: linear-gradient(135deg, #2d2d2d 0%, #1a1a1a 100%);
  color: rgba(255, 255, 255, 0.8);
  padding: 60px 0 30px;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 32px;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.brand-logo-footer {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.brand-info-footer h3 {
  font-size: 24px;
  background: linear-gradient(135deg, var(--primary-pink), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.domain-footer {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.5);
}

.brand-description {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.7);
}

.footer-links {
  display: contents;
}

.link-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
  color: white;
}

.link-list {
  list-style: none;
}

.link-list li {
  margin-bottom: 12px;
}

.link-list a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 14px;
  transition: all 0.3s ease;
  display: inline-block;
}

.link-list a:hover {
  color: var(--primary-pink);
  transform: translateX(4px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 28px;
  text-align: center;
}

.copyright {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 8px;
}

.footer-keywords {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
}

.back-to-top {
  position: fixed;
  bottom: 40px;
  right: 40px;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-pink), var(--deep-pink));
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s ease;
  opacity: 0;
  visibility: hidden;
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(255, 107, 157, 0.4);
}

@media (max-width: 1200px) {
  .video-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .category-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 1024px) {
  .header-nav {
    display: none;
  }

  .slide-content {
    padding: 0 48px;
  }

  .content-title {
    font-size: 48px;
  }

  .video-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-content {
    padding: 0 20px;
    gap: 24px;
  }

  .search-input {
    width: 120px;
  }

  .hero-banner {
    height: 500px;
  }

  .slide-content {
    padding: 0 24px;
  }

  .content-title {
    font-size: 36px;
  }

  .content-desc {
    font-size: 16px;
  }

  .section-container {
    padding: 0 20px;
  }

  .title-decoration {
    gap: 12px;
  }

  .title-icon {
    font-size: 40px;
  }

  .title-main {
    font-size: 28px;
  }

  .title-en {
    font-size: 11px;
  }

  .section-subtitle {
    font-size: 13px;
  }

  .video-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .category-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 480px) {
  .brand-title {
    font-size: 20px;
  }

  .hero-banner {
    height: 400px;
  }

  .content-title {
    font-size: 28px;
  }

  .content-meta {
    flex-wrap: wrap;
    gap: 12px;
  }

  .content-actions {
    flex-direction: column;
  }

  .action-btn {
    width: 100%;
    justify-content: center;
  }

  .title-decoration {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .title-icon {
    font-size: 36px;
  }

  .title-main {
    font-size: 24px;
  }

  .title-en {
    font-size: 10px;
    letter-spacing: 1px;
  }

  .section-subtitle {
    font-size: 12px;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .view-all-link {
    align-self: flex-end;
  }

  .video-grid {
    grid-template-columns: 1fr;
  }
}