/* Component Styles */

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: #0000e4;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1000;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), box-shadow var(--transition-normal), background var(--transition-normal);
}

.navbar.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  background: #0000e4;
}

.navbar-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 10px var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  box-sizing: border-box;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.brand-logo {
  height: 44px;
  width: auto;
  object-fit: contain;
  max-height: 44px;
}

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

.brand-name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-highlight-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: var(--spacing-xs);
  background: none;
  border: none;
  cursor: pointer;
}

.navbar-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  transition: all var(--transition-fast);
  transform-origin: center;
}

/* 汉堡菜单激活状态 - 变成X */
.navbar-toggle.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.navbar-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.navbar-toggle.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.navbar-menu {
  display: flex;
  gap: var(--spacing-lg);
}

.navbar-menu a {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
  position: relative;
  padding: var(--spacing-xs) 0;
}

.navbar-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-highlight-blue);
  transition: width var(--transition-normal);
}

.navbar-menu a:hover,
.navbar-menu a.active {
  color: var(--color-highlight-blue);
}

.navbar-menu a:hover::after,
.navbar-menu a.active::after {
  width: 100%;
}

/* Hero Section */
.hero {
  min-height: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: 100px;
  padding-bottom: 20px;
  position: relative;
  overflow: visible;
}

.hero-grid {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
}

.hero-grid::before {
  content: '';
  position: absolute;
  top: -100%;
  left: -50%;
  width: 200%;
  height: 300%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Cdefs%3E%3Cpattern id='grid' width='80' height='80' patternUnits='userSpaceOnUse'%3E%3Cpath d='M 80 0 L 0 0 0 80' fill='none' stroke='rgba(255,255,255,0.25)' stroke-width='1.5'/%3E%3C/pattern%3E%3C/defs%3E%3Crect width='100%25' height='100%25' fill='url(%23grid)' /%3E%3C/svg%3E");
  background-size: 80px 80px;
  transform-origin: center center;
  animation: gridMove 15s linear infinite;
  will-change: transform;
}

@keyframes gridMove {
  0% { transform: perspective(800px) rotateX(70deg) translateY(0); }
  100% { transform: perspective(800px) rotateX(70deg) translateY(80px); }
}

.hero-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.15) 0%, transparent 70%);
  animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.2); }
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.hero-gradient {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at top, rgba(0, 229, 255, 0.15) 0%, transparent 50%),
              radial-gradient(ellipse at bottom, rgba(0, 0, 228, 0.25) 0%, transparent 50%);
  animation: gradientShift 8s ease-in-out infinite;
}

/* 添加网格纹理 */
.hero-gradient::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

@keyframes gradientShift {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(2px 2px at 20% 30%, rgba(255, 255, 255, 0.3), transparent),
    radial-gradient(2px 2px at 60% 70%, rgba(255, 255, 255, 0.3), transparent),
    radial-gradient(1px 1px at 50% 50%, rgba(255, 255, 255, 0.3), transparent),
    radial-gradient(1px 1px at 80% 10%, rgba(255, 255, 255, 0.3), transparent),
    radial-gradient(2px 2px at 90% 60%, rgba(255, 255, 255, 0.3), transparent),
    radial-gradient(1px 1px at 33% 80%, rgba(255, 255, 255, 0.3), transparent);
  background-size: 200% 200%;
  animation: particlesFloat 20s ease-in-out infinite;
}

@keyframes particlesFloat {
  0%, 100% { background-position: 0% 0%; }
  50% { background-position: 100% 100%; }
}

.hero-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-lg);
}

.badge-icon {
  font-size: 18px;
  font-weight: var(--font-weight-black);
  color: var(--color-highlight-blue);
}

.pulse-text {
  animation: textPulse 2s ease-in-out infinite;
}

@keyframes textPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

.typing-text {
  border-right: 2px solid var(--color-highlight-blue);
  animation: typingCursor 0.8s infinite;
}

@keyframes typingCursor {
  0%, 100% { border-color: transparent; }
  50% { border-color: var(--color-highlight-blue); }
}

.hero-title {
  font-size: clamp(48px, 8vw, 100px);
  font-weight: var(--font-weight-black);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
  text-align: center;
  background: linear-gradient(135deg, #ffffff 0%, #00e5ff 50%, #ffffff 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: titleGradient 3s ease-in-out infinite;
  padding: 0 var(--spacing-xl);
  word-break: keep-all;
  white-space: nowrap;
  max-width: 100%;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
  overflow: visible;
}

/* 移动端允许标题换行 */
@media (max-width: 767px) {
  .hero-title {
    white-space: normal;
    word-break: keep-all;
    overflow-wrap: break-word;
    padding: 0 var(--spacing-md);
  }
}

@keyframes titleGradient {
  0%, 100% {
    background-position: 0% center;
  }
  50% {
    background-position: 100% center;
  }
}

.title-main {
  display: block;
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

.hero-cta {
  margin-top: var(--spacing-lg);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--color-highlight-blue);
  color: var(--color-brand-blue);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  border-radius: 8px;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 229, 255, 0.35);
}

.btn-primary svg {
  transition: transform 0.3s ease;
}

.btn-primary:hover svg {
  transform: translateX(4px);
}

.hero-visual {
  margin-top: var(--spacing-2xl);
  animation: fadeInUp 0.8s ease-out 1s backwards;
}

.hero-image-placeholder {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, rgba(0, 0, 228, 0.15) 0%, rgba(0, 212, 255, 0.1) 100%);
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-image-placeholder::before {
  content: "产品展示图";
  position: absolute;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.hero-image.loaded {
  opacity: 1;
}

/* Hero Stats */
.hero-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-lg) var(--spacing-xl);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius-md);
  backdrop-filter: blur(10px);
  animation: fadeInUp 0.8s ease-out 1.2s backwards;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-symbol {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-black);
  color: var(--color-highlight-blue);
  line-height: 1;
  text-shadow: 0 0 20px rgba(0, 229, 255, 0.5);
  animation: symbolFloat 3s ease-in-out infinite;
}

@keyframes symbolFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

/* Hero Scroll Indicator */
.hero-scroll-indicator {
  position: relative;
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  animation: fadeInUp 0.8s ease-out 1.5s backwards;
  opacity: 0.7;
}

.scroll-mouse {
  width: 26px;
  height: 40px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: 13px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}

.scroll-wheel {
  width: 4px;
  height: 8px;
  background: var(--color-highlight-blue);
  border-radius: 2px;
  animation: scrollWheel 1.5s ease-in-out infinite;
}

@keyframes scrollWheel {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(12px); opacity: 0; }
}

.scroll-text {
  font-size: 12px;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 2px;
}

/* Hero Showcase - Tabbit Style Scroll-Driven Transform */
.hero-showcase {
  position: relative;
  width: 100%;
  max-width: 1100px;
  margin: 60px auto 0;
  padding: 0 var(--spacing-md);
  z-index: 1;
  /* 初始隐藏，等待滚动 */
  opacity: 1;
}

.hero-showcase-container {
  position: relative;
  transform-style: preserve-3d;
}

.hero-showcase-frame {
  position: relative;
  background: linear-gradient(135deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.03) 100%);
  border-radius: 20px;
  padding: 10px;
  overflow: hidden;
  /* 初始状态：由 JS 控制 */
  will-change: transform, box-shadow;
  transform-origin: center center;
}

.hero-showcase-image {
  width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
  object-fit: cover;
  /* 增加一点内部阴影增加层次感 */
  box-shadow: 0 0 0 1px rgba(0,0,0,0.1) inset;
}

.hero-showcase-glow {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(0,229,255,0.08) 0%, transparent 50%);
  pointer-events: none;
  animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.1); }
}

.hero-showcase-shadow {
  position: absolute;
  bottom: -60px;
  left: 5%;
  right: 5%;
  height: 60px;
  background: radial-gradient(ellipse at center, rgba(0,0,0,0.4) 0%, transparent 70%);
  filter: blur(30px);
  z-index: -1;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-showcase {
    margin-top: 40px;
    padding: 0 var(--spacing-sm);
  }
  
  .hero-showcase-frame {
    padding: 6px;
    border-radius: 14px;
  }
  
  .hero-showcase-image {
    border-radius: 8px;
  }
  
  .hero-showcase-shadow {
    bottom: -40px;
    height: 40px;
    filter: blur(20px);
  }
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.stat-number {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-black);
  color: var(--color-highlight-blue);
  line-height: 1;
  text-shadow: 0 0 20px rgba(0, 229, 255, 0.5);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
}

/* Products Header */
.products-header {
  padding: var(--spacing-2xl) 0 var(--spacing-xl);
  text-align: center;
}

/* Product Detail Sections - 上下结构详情页式展示 */
.product-detail-section {
  padding: 10px 0 10px;
  margin-bottom: 40px;
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s ease-out;
  position: relative;
}

.product-detail-section.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.product-detail-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

/* 顶部：标题和副标题区域 */
.product-detail-content-top {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: 0;
  padding-top: 100px;
  margin-bottom: var(--spacing-3xl);
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* 中间：大视频区域 */
.product-detail-media-middle {
  width: 100%;
  margin-bottom: var(--spacing-xs);
}

.product-media-wrapper-large {
  position: relative;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  background: linear-gradient(135deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.2) 100%);
  border-radius: 32px;
  overflow: hidden;
  box-shadow: 
    0 40px 80px -20px rgba(0,0,0,0.6),
    0 0 0 1px rgba(255,255,255,0.1) inset;
  aspect-ratio: 16/9;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.product-media-wrapper-large:hover {
  transform: translateY(-8px);
  box-shadow: 
    0 50px 100px -20px rgba(0,0,0,0.7),
    0 0 0 1px rgba(255,255,255,0.15) inset,
    0 0 60px rgba(0,229,255,0.15);
}

.product-demo-video-large,
.product-demo-image-large {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 视频标签 */
.video-badge-large {
  position: absolute;
  top: 24px;
  right: 24px;
  padding: 10px 20px;
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(12px);
  border-radius: 30px;
  font-size: 15px;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 10;
  border: 1px solid rgba(255,255,255,0.15);
}

.video-badge-large::before {
  content: '';
  width: 10px;
  height: 10px;
  background: #ff4444;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.product-demo-placeholder-large {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  color: var(--color-text-secondary);
  font-size: var(--font-size-xl);
}

.product-demo-placeholder-large .placeholder-icon {
  font-size: 80px;
}

/* 底部：引用和功能列表 */
.product-detail-content-bottom {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: 0;
}

.product-detail-header-row {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-top: 5px;
  margin-bottom: 80px;
  padding: 16px 36px;
  background: linear-gradient(135deg, rgba(0,229,255,0.18) 0%, rgba(0,229,255,0.10) 100%);
  border-radius: 40px;
  border: 3px solid rgba(0,229,255,0.7);
  box-shadow: 
    0 12px 32px rgba(0,229,255,0.35),
    0 0 0 1px rgba(255,255,255,0.15) inset,
    0 0 60px rgba(0,229,255,0.3);
  position: relative;
  overflow: hidden;
}

.product-detail-header-row::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
  animation: headerShine 3s ease-in-out infinite;
}

@keyframes headerShine {
  0% { left: -100%; }
  50%, 100% { left: 100%; }
}

.product-detail-number-large {
  font-size: 42px;
  font-weight: var(--font-weight-black);
  color: var(--color-highlight-blue);
  line-height: 1;
  letter-spacing: -1px;
  text-shadow: 0 0 20px rgba(0,229,255,0.5);
}

.product-detail-tagline-large {
  font-size: 18px;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  letter-spacing: 0.8px;
  text-shadow: 0 1px 4px rgba(0,229,255,0.2);
}

.product-detail-title-large {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: var(--font-weight-black);
  margin-bottom: var(--spacing-xs);
  background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-highlight-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.3;
  letter-spacing: -1.2px;
}

.product-detail-idea-large {
  font-size: 18px;
  color: var(--color-text-secondary);
  margin-bottom: 0;
  line-height: 1.7;
  padding: 0 var(--spacing-lg);
  letter-spacing: 0.3px;
  font-weight: var(--font-weight-medium);
}

.product-detail-quote-large {
  position: relative;
  background: linear-gradient(135deg, #f5f0e8 0%, #ebe4d8 100%);
  border-radius: 16px;
  padding: 18px var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
  text-align: left;
  border: 2px solid rgba(139, 115, 85, 0.2);
  box-shadow: 
    0 4px 16px rgba(139, 115, 85, 0.12),
    0 0 0 1px rgba(255,255,255,0.5) inset;
  overflow: hidden;
  min-height: 60px;
}

/* 金句卡片背景装饰 */
.product-detail-quote-large::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, #d4af37 0%, #c9a961 100%);
  box-shadow: 0 0 12px rgba(212, 175, 55, 0.4);
}

/* 引号装饰 - 左侧 */
.product-detail-quote-large svg {
  position: absolute;
  top: 50%;
  left: 20px;
  transform: translateY(-50%);
  color: rgba(139, 115, 85, 0.15);
  opacity: 1;
  width: 40px;
  height: 40px;
  z-index: 1;
}

/* 金句文字容器 */
.product-detail-quote-large > p {
  position: relative;
  z-index: 2;
  flex: 1;
  font-family: 'KaiTi', 'STKaiti', 'KaiTi_GB2312', 'STSong', 'SimSun', 'Songti SC', 'NSimSun', serif;
  font-size: 17px;
  font-style: normal;
  font-weight: bold;
  color: #3d3226;
  line-height: 1.65;
  letter-spacing: 0.6px;
  text-align: left;
  margin: 0;
  padding-left: 64px;
}

/* 寄语点赞功能样式 - 横向布局右侧 */
.quote-like-container {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding-left: var(--spacing-md);
  border-left: 1px solid rgba(139, 115, 85, 0.15);
  min-width: 100px;
  flex-shrink: 0;
}

.quote-like-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(212, 175, 55, 0.08);
  border: 1.5px solid rgba(212, 175, 55, 0.25);
  border-radius: 18px;
  padding: 6px 14px;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1), gap 0.3s ease;
  color: #8b7355;
  font-size: 14px;
  font-weight: var(--font-weight-bold);
  position: relative;
  overflow: hidden;
}

/* 点赞按钮发光效果 */
.quote-like-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(212, 175, 55, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.quote-like-btn:hover::before {
  width: 150px;
  height: 150px;
}

.quote-like-btn:hover {
  background: rgba(212, 175, 55, 0.2);
  border-color: #d4af37;
  transform: translateY(-2px);
  box-shadow: 
    0 6px 20px rgba(212, 175, 55, 0.25),
    0 0 30px rgba(212, 175, 55, 0.15);
}

.quote-like-btn:active {
  transform: translateY(0);
}

.quote-like-btn.liked {
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.18) 0%, rgba(212, 175, 55, 0.12) 100%);
  border-color: rgba(212, 175, 55, 0.5);
  color: #d4af37;
  gap: 0;
  box-shadow: 
    0 2px 12px rgba(212, 175, 55, 0.2),
    0 0 20px rgba(212, 175, 55, 0.1) inset;
}

.quote-like-btn.liked .like-count {
  color: #d4af37;
  text-shadow: 0 1px 3px rgba(212, 175, 55, 0.3);
}

.quote-like-btn.liked .like-icon {
  fill: #d4af37;
  stroke: #d4af37;
  filter: drop-shadow(0 0 6px rgba(212, 175, 55, 0.5));
}

.quote-like-btn.animating {
  animation: likeAnimation 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes likeAnimation {
  0% {
    transform: translateY(-2px) scale(1);
  }
  25% {
    transform: translateY(-2px) scale(1.12);
  }
  50% {
    transform: translateY(-2px) scale(0.96);
  }
  75% {
    transform: translateY(-2px) scale(1.04);
  }
  100% {
    transform: translateY(-2px) scale(1);
  }
}

.like-icon {
  position: relative;
  z-index: 1;
  width: 18px;
  height: 18px;
  transition: all 0.3s ease, opacity 0.3s ease, width 0.3s ease, transform 0.3s ease;
  stroke-width: 2.5;
  fill: none;
  stroke: currentColor;
}

.quote-like-btn.liked .like-icon {
  opacity: 0;
  width: 0;
  margin: 0;
  transform: scale(0);
}

.quote-like-btn:hover .like-icon {
  transform: scale(1.15) rotate(-5deg);
}

.quote-like-btn.liked:hover .like-icon {
  transform: scale(1.15) rotate(5deg);
  animation: likeIconBounce 0.5s ease-in-out infinite;
}

@keyframes likeIconBounce {
  0%, 100% { transform: scale(1.15) rotate(5deg) translateY(0); }
  50% { transform: scale(1.15) rotate(5deg) translateY(-2px); }
}

.like-count {
  position: relative;
  z-index: 1;
  font-size: 20px;
  font-weight: var(--font-weight-bold);
  min-width: 55px;
  text-align: center;
  letter-spacing: 0.2px;
  color: rgba(61, 50, 38, 0.85);
  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5);
}

/* +1动效 */
.like-count-animation {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 20px;
  font-weight: var(--font-weight-black);
  color: #d4af37;
  pointer-events: none;
  animation: likeCountFloat 1s ease-out forwards;
  z-index: 10;
}

@keyframes likeCountFloat {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(-30px);
  }
}

.like-label {
  position: relative;
  z-index: 1;
  font-size: 12px;
  color: rgba(139, 115, 85, 0.7);
  opacity: 1;
  font-weight: var(--font-weight-medium);
}


.product-detail-features-large h4 {
  font-size: 24px;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-tertiary);
  margin-bottom: var(--spacing-xl);
  text-transform: uppercase;
  letter-spacing: 3px;
  opacity: 0.7;
}

.product-detail-features-large ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-md);
  max-width: 900px;
  margin: 0 auto;
}

.product-detail-features-large li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  font-size: 14px;
  color: var(--color-text-secondary);
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(255,255,255,0.04);
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.08);
  transition: all 0.3s ease;
  font-weight: var(--font-weight-normal);
}

.product-detail-features-large li span {
  flex: 1;
  text-align: left;
  line-height: 1.6;
  word-break: break-word;
}

.product-detail-features-large li:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(0,229,255,0.3);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,229,255,0.1);
}

.product-detail-features-large li svg {
  flex-shrink: 0;
  color: var(--color-highlight-blue);
  width: 18px;
  height: 18px;
}

/* 软件著作权声明 */
.product-copyright-notice {
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.product-copyright-notice p {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.6;
  letter-spacing: 0.5px;
  font-weight: var(--font-weight-normal);
}

/* Responsive */
@media (max-width: 768px) {
  .product-detail-section {
    padding: var(--spacing-2xl) 0;
  }
  
  .product-detail-container {
    padding: 0 var(--spacing-md);
    gap: var(--spacing-2xl);
  }
  
  .product-detail-content-top {
    margin-bottom: var(--spacing-2xl);
  }
  
  .product-detail-content-bottom {
    padding: 0;
  }
  
  .product-media-wrapper-large {
    aspect-ratio: 4/3;
    border-radius: 20px;
    max-width: 100%;
  }
  
  .product-detail-header-row {
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: 50px;
  }
  
  .product-detail-number-large {
    font-size: 48px;
    letter-spacing: -1px;
  }
  
  .product-detail-tagline-large {
    font-size: 18px;
    letter-spacing: 1px;
  }
  
  .product-detail-title-large {
    font-size: clamp(32px, 8vw, 48px);
    margin-bottom: var(--spacing-lg);
    letter-spacing: -1px;
  }
  
  .product-detail-idea-large {
    font-size: 18px;
    margin-bottom: 0;
    padding: 0 var(--spacing-sm);
    letter-spacing: 0.3px;
  }
  
  .product-detail-quote-large {
    padding: var(--spacing-xl) var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    border-radius: 20px;
  }
  
  .product-detail-quote-large svg {
    width: 36px;
    height: 36px;
    top: 16px;
    left: 16px;
  }
  
  .product-detail-quote-large p {
    font-size: 18px;
    letter-spacing: 0.3px;
    line-height: 1.7;
  }
  
  /* 移动端点赞样式 - 改为底部布局 */
  .quote-like-container {
    flex-direction: row;
    justify-content: center;
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    padding-left: 0;
    border-left: none;
    border-top: 1px solid rgba(139, 115, 85, 0.15);
    min-width: auto;
    width: 100%;
  }
  
  .quote-like-btn {
    padding: 10px 20px;
    font-size: 15px;
    gap: 8px;
  }
  
  .like-icon {
    width: 20px;
    height: 20px;
  }
  
  .like-count {
    font-size: 22px;
    min-width: 58px;
    color: rgba(61, 50, 38, 0.85);
  }
  
  .quote-like-btn.liked .like-count {
    color: #d4af37;
  }
  
  .like-label {
    font-size: 13px;
  }
  
  /* 移动端金句卡片改为纵向布局 */
  .product-detail-quote-large {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .product-detail-quote-large > p {
    padding-left: 72px;
  }

  
  .product-detail-features-large h4 {
    margin-bottom: var(--spacing-lg);
    font-size: 14px;
    letter-spacing: 3px;
  }
  
  .product-detail-features-large ul {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .product-detail-features-large li {
    width: 100%;
    justify-content: flex-start;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 16px;
    border-radius: 14px;
  }
  
  .product-detail-features-large li svg {
    width: 24px;
    height: 24px;
  }
  
  .section-title {
    font-size: clamp(26px, 7vw, 40px);
    white-space: nowrap;
  }
  
  .section-description {
    font-size: clamp(14px, 3vw, 16px);
    white-space: nowrap;
  }
  
  .video-badge-large {
    top: 16px;
    right: 16px;
    padding: 8px 16px;
    font-size: 13px;
  }
}

@media (max-width: 480px) {
  .product-detail-section {
    padding: var(--spacing-xl) 0;
  }
  
  .product-detail-container {
    padding: 0 var(--spacing-sm);
    gap: var(--spacing-xl);
  }
  
  .product-detail-content-top {
    margin-bottom: var(--spacing-xl);
  }
  
  .product-detail-header-row {
    flex-direction: row;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 40px;
  }
  
  .product-detail-number-large {
    font-size: 40px;
  }
  
  .product-detail-tagline-large {
    font-size: 16px;
    letter-spacing: 0.8px;
  }
  
  .product-detail-title-large {
    font-size: clamp(28px, 7vw, 40px);
    letter-spacing: -0.8px;
  }
  
  .product-detail-idea-large {
    font-size: 16px;
    letter-spacing: 0.2px;
  }
  
  .product-detail-quote-large {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 16px;
  }
  
  .product-detail-quote-large p {
    font-size: 16px;
  }
  
  .product-detail-features-large li {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 15px;
  }
  
  .section-title {
    font-size: clamp(22px, 6.5vw, 32px);
    white-space: nowrap;
  }
  
  .section-description {
    font-size: clamp(12px, 3.5vw, 14px);
    white-space: nowrap;
  }
  
  .video-badge-large {
    top: 12px;
    right: 12px;
    padding: 6px 12px;
    font-size: 12px;
  }
}

.product-stack-number {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-black);
  color: rgba(255, 255, 255, 0.05);
  line-height: 1;
  margin-bottom: var(--spacing-md);
}

.product-stack-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.product-stack-tagline {
  font-size: var(--font-size-lg);
  color: var(--color-highlight-blue);
  margin-bottom: var(--spacing-md);
  font-weight: var(--font-weight-medium);
}

.product-stack-description {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-lg);
}

.product-stack-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.product-stack-features li {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  padding-left: var(--spacing-md);
  position: relative;
  line-height: 1.6;
}

.product-stack-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success-cyan);
  font-weight: var(--font-weight-bold);
}

.product-stack-media {
  width: 100%;
  aspect-ratio: 16 / 10;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-stack-media img,
.product-stack-media video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: rgba(0, 0, 0, 0.2);
}

.product-stack-media video {
  object-fit: cover;
}

.product-stack-media-placeholder {
  text-align: center;
  color: var(--color-text-tertiary);
}

.product-stack-media-placeholder .placeholder-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-sm);
  opacity: 0.5;
}

.product-stack-media-placeholder .placeholder-text {
  font-size: var(--font-size-sm);
}

.product-stack-media-badge {
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-sm);
  background: rgba(0, 0, 0, 0.7);
  color: var(--color-text-primary);
  padding: 4px 12px;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.product-stack-media:hover {
  border-color: rgba(0, 229, 255, 0.3);
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.1);
}

/* Responsive for Product Stack */
@media (max-width: 767px) {
  .product-stack-item,
  .product-stack-item:nth-child(even) {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
  
  .product-stack-features {
    grid-template-columns: 1fr;
  }
  
  .product-stack-title {
    font-size: var(--font-size-xl);
  }
  
  .product-stack-tagline {
    font-size: var(--font-size-md);
  }
  
  .product-stack-media {
    aspect-ratio: 16 / 9;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .product-stack-item {
    gap: var(--spacing-xl);
  }
  
  .product-stack-features {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Pricing Card */
.pricing {
  padding: var(--spacing-2xl) 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.pricing-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  position: relative;
  transition: all var(--transition-normal);
  opacity: 0;
  transform: translateY(30px);
  overflow: hidden;
  /* 使用flex布局确保底部对齐 */
  display: flex;
  flex-direction: column;
}

.pricing-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.05) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-normal);
  pointer-events: none;
}

.pricing-card.animate-in {
  opacity: 1;
  transform: translateY(0);
  animation: fadeInUp 0.6s ease-out forwards;
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.3),
    0 0 30px rgba(0, 229, 255, 0.15);
  border-color: rgba(0, 229, 255, 0.3);
}

.pricing-card:hover::after {
  opacity: 1;
}

.pricing-card[data-recommended="true"] {
  border: 2px solid var(--color-highlight-blue);
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.2);
  transform: scale(1.02);
}

.pricing-card[data-recommended="true"]::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-brand-blue), var(--color-highlight-blue));
  animation: recommendedGlow 2s ease-in-out infinite;
}

@keyframes recommendedGlow {
  0%, 100% { opacity: 1; box-shadow: 0 0 10px rgba(0, 229, 255, 0.5); }
  50% { opacity: 0.8; box-shadow: 0 0 20px rgba(0, 229, 255, 0.8); }
}

/* 旗舰版金色样式 */
.pricing-card[data-tier="flagship"] {
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.05) 0%, rgba(218, 165, 32, 0.03) 100%);
  border: 1px solid rgba(255, 215, 0, 0.3);
  box-shadow: 0 0 30px rgba(255, 215, 0, 0.15);
}

.pricing-card[data-tier="flagship"]::after {
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.08) 0%, transparent 50%);
}

.pricing-card[data-tier="flagship"]:hover {
  border-color: rgba(255, 215, 0, 0.5);
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.3),
    0 0 40px rgba(255, 215, 0, 0.25);
}

.pricing-card[data-tier="flagship"]::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #DAA520, #FFD700, #DAA520);
  animation: flagshipGlow 2s ease-in-out infinite;
}

@keyframes flagshipGlow {
  0%, 100% { opacity: 1; box-shadow: 0 0 15px rgba(255, 215, 0, 0.6); }
  50% { opacity: 0.9; box-shadow: 0 0 25px rgba(255, 215, 0, 0.8); }
}

.pricing-card[data-tier="flagship"] .pricing-tier {
  color: #FFD700;
  text-shadow: 0 0 20px rgba(255, 215, 0, 0.4);
}

.pricing-card[data-tier="flagship"] .pricing-tier::before {
  background: linear-gradient(135deg, #FFD700, #DAA520);
  opacity: 1;
}

.pricing-card[data-tier="flagship"] .price-amount {
  color: #FFD700;
  text-shadow: 0 0 30px rgba(255, 215, 0, 0.5);
}

.pricing-card[data-tier="flagship"]:hover .price-amount {
  text-shadow: 0 0 50px rgba(255, 215, 0, 0.7);
}

.pricing-card[data-tier="flagship"] .pricing-platform,
.pricing-card[data-tier="flagship"] .pricing-wordbook {
  color: #FFE4B5; /* 淡黄色 */
}

.pricing-card[data-tier="flagship"] .pricing-reason {
  background: rgba(255, 215, 0, 0.1);
  border-left-color: #FFD700;
  color: #FFE4B5; /* 推荐理由内容也改为淡黄色 */
}

.pricing-card[data-tier="flagship"] .pricing-badge {
  background: linear-gradient(135deg, #FFD700, #DAA520);
  color: #1a1a2e;
  font-weight: var(--font-weight-black);
}

.pricing-card[data-tier="flagship"] .btn-select {
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.15), rgba(218, 165, 32, 0.1));
  border-color: rgba(255, 215, 0, 0.4);
  color: #FFD700;
}

.pricing-card[data-tier="flagship"] .btn-select:hover {
  background: linear-gradient(135deg, #FFD700, #DAA520);
  color: #1a1a2e;
  border-color: #FFD700;
  box-shadow: 0 8px 24px rgba(255, 215, 0, 0.4);
}

.pricing-card[data-tier="flagship"] .btn-select::before {
  background: linear-gradient(90deg, transparent, rgba(255, 215, 0, 0.3), transparent);
}

.pricing-badge {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background: var(--color-highlight-blue);
  color: var(--color-brand-blue);
  padding: 4px 12px;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
}

.pricing-tier {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.pricing-tier::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--color-highlight-blue);
  border-radius: 50%;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.pricing-card:hover .pricing-tier::before {
  opacity: 1;
}

.pricing-price {
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.price-currency {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
}

.price-amount {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-black);
  color: var(--color-highlight-blue);
  text-shadow: 0 0 30px rgba(0, 229, 255, 0.4);
  transition: text-shadow var(--transition-normal);
}

.pricing-card:hover .price-amount {
  text-shadow: 0 0 50px rgba(0, 229, 255, 0.6);
}

.price-period {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

/* 原价显示样式 */
.pricing-price-wrapper {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: var(--spacing-md);
}

.pricing-original-price {
  display: flex;
  align-items: center;
  gap: 6px;
}

.original-price-label {
  font-size: 12px;
  color: var(--color-text-tertiary);
}

.original-price-value {
  font-size: var(--font-size-base);
  color: var(--color-text-tertiary);
  text-decoration: line-through;
  opacity: 0.7;
}

.pricing-discount-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: linear-gradient(135deg, rgba(255, 82, 82, 0.2) 0%, rgba(255, 138, 128, 0.15) 100%);
  border: 1px solid rgba(255, 82, 82, 0.4);
  border-radius: 4px;
  margin-left: 4px;
}

.discount-text {
  font-size: 11px;
  font-weight: var(--font-weight-bold);
  color: #ff5252;
  letter-spacing: 0.5px;
}

.pricing-info {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.pricing-platform,
.pricing-wordbook {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-bottom: var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.pricing-platform::before {
  content: '📱';
  font-size: 12px;
}

.pricing-wordbook::before {
  content: '📖';
  font-size: 12px;
}

/* 推荐理由样式 */
.pricing-reason {
  font-size: 12px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  padding: 10px 12px;
  background: rgba(0, 229, 255, 0.06);
  border-radius: 8px;
  margin-bottom: var(--spacing-md);
  /* 确保推荐理由在底部 */
  margin-top: auto;
  /* 固定高度确保4个容器一样大 */
  min-height: 72px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  border: 1px solid rgba(0, 229, 255, 0.15);
}

.pricing-reason::before {
  content: "💡";
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 2px;
}

.pricing-reason-text {
  flex: 1;
  word-break: break-word;
  white-space: normal;
}

/* 定价区域免责说明 */
.pricing-disclaimer {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-lg) var(--spacing-xl);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-md);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.disclaimer-text {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.8;
  text-align: center;
  letter-spacing: 0.3px;
  margin: 0;
}

.disclaimer-text svg {
  opacity: 0.6;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .pricing-disclaimer {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-md) var(--spacing-lg);
  }
  
  .disclaimer-text {
    font-size: 11px;
    line-height: 1.7;
    text-align: left;
  }
}

/* 客服微信二维码弹窗 */
.qrcode-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease-out;
}

.qrcode-modal.active {
  display: flex;
}

.qrcode-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.qrcode-modal-content {
  position: relative;
  background: linear-gradient(135deg, rgba(26, 26, 46, 0.95) 0%, rgba(0, 0, 228, 0.95) 100%);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  max-width: 400px;
  width: 90%;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  animation: modalSlideIn 0.3s ease-out;
}

/* 旗舰版金色主题弹窗 */
.qrcode-modal-content.flagship-theme {
  background: linear-gradient(135deg, rgba(60, 45, 10, 0.98) 0%, rgba(80, 60, 20, 0.98) 50%, rgba(60, 45, 10, 0.98) 100%);
  border: 2px solid rgba(255, 215, 0, 0.8);
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.7),
    0 0 50px rgba(255, 215, 0, 0.5),
    0 0 0 1px rgba(255, 215, 0, 0.4) inset;
  position: relative;
  overflow: hidden;
}

/* 金色光晕效果 */
.qrcode-modal-content.flagship-theme::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(255, 215, 0, 0.25) 0%, transparent 50%);
  animation: goldenGlow 3s ease-in-out infinite;
  pointer-events: none;
}

@keyframes goldenGlow {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

/* 金色闪光效果 */
.qrcode-modal-content.flagship-theme::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 215, 0, 0.4), transparent);
  animation: goldenShine 3s ease-in-out infinite;
  pointer-events: none;
}

@keyframes goldenShine {
  0% { left: -100%; }
  50%, 100% { left: 100%; }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.qrcode-modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 10;
}

.qrcode-modal-close:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: var(--color-highlight-blue);
  color: var(--color-highlight-blue);
  transform: rotate(90deg);
}

/* 旗舰版金色关闭按钮 */
.flagship-theme .qrcode-modal-close {
  background: rgba(255, 215, 0, 0.2);
  border: 1px solid rgba(255, 215, 0, 0.6);
  color: #FFD700;
}

.flagship-theme .qrcode-modal-close:hover {
  background: rgba(255, 215, 0, 0.35);
  border-color: #FFD700;
  color: #FFF;
  box-shadow: 0 0 25px rgba(255, 215, 0, 0.6);
}

.qrcode-modal-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
  z-index: 1;
}

.qrcode-modal-header h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.qrcode-modal-header p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* 旗舰版金色标题 */
.flagship-theme .qrcode-modal-header h3 {
  background: linear-gradient(135deg, #FFE55C 0%, #FFD700 50%, #FFE55C 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 40px rgba(255, 215, 0, 0.6);
  font-size: var(--font-size-2xl);
  letter-spacing: 2px;
  white-space: nowrap;
}

.flagship-theme .qrcode-modal-header p {
  color: rgba(255, 230, 100, 0.95);
  font-weight: var(--font-weight-medium);
}

.qrcode-modal-body {
  text-align: center;
  position: relative;
  z-index: 1;
}

.qrcode-image {
  width: 240px;
  height: 240px;
  margin: 0 auto var(--spacing-md);
  background: white;
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* 旗舰版金色二维码边框 */
.flagship-theme .qrcode-image {
  background: linear-gradient(135deg, #FFFBF0 0%, #FFF9E6 100%);
  border: 3px solid #FFD700;
  box-shadow: 
    0 10px 40px rgba(0, 0, 0, 0.5),
    0 0 40px rgba(255, 215, 0, 0.6),
    0 0 0 1px rgba(255, 215, 0, 0.5) inset;
  position: relative;
}

/* 金色二维码四角装饰 */
.flagship-theme .qrcode-image::before,
.flagship-theme .qrcode-image::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid #FFD700;
}

.flagship-theme .qrcode-image::before {
  top: -3px;
  left: -3px;
  border-right: none;
  border-bottom: none;
}

.flagship-theme .qrcode-image::after {
  bottom: -3px;
  right: -3px;
  border-left: none;
  border-top: none;
}

.qrcode-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brand-blue);
}

.qrcode-hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-md);
}

/* 旗舰版金色提示文字 */
.flagship-theme .qrcode-hint {
  color: rgba(255, 230, 100, 0.9);
  font-weight: var(--font-weight-medium);
}

/* 旗舰版专属标签 */
.flagship-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.3) 0%, rgba(255, 165, 0, 0.25) 100%);
  border: 1px solid rgba(255, 215, 0, 0.7);
  border-radius: 20px;
  font-size: 13px;
  font-weight: var(--font-weight-bold);
  color: #FFE55C;
  margin-bottom: var(--spacing-md);
  box-shadow: 0 0 25px rgba(255, 215, 0, 0.4);
}

.flagship-badge::before {
  content: '👑';
  font-size: 16px;
}

/* 响应式 */
@media (max-width: 480px) {
  .qrcode-modal-content {
    padding: var(--spacing-lg);
  }
  
  .qrcode-image {
    width: 200px;
    height: 200px;
  }
  
  .qrcode-modal-header h3 {
    font-size: var(--font-size-lg);
  }
}

.pricing-features {
  margin: var(--spacing-md) 0;
  max-height: 400px;
  overflow-y: auto;
  /* 让功能列表占据剩余空间,推荐理由和按钮自动到底部 */
  flex: 1;
}

.pricing-features::-webkit-scrollbar {
  width: 4px;
}

.pricing-features::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 2px;
}

.pricing-features::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
}

.pricing-features::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

.pricing-features li {
  font-size: var(--font-size-xs);
  margin-bottom: var(--spacing-xs);
  padding-left: var(--spacing-md);
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  line-height: 1.6;
}

.pricing-features li::before {
  display: none; /* 移除默认的伪元素，使用新的icon结构 */
}

.feature-icon {
  position: absolute;
  left: 0;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
}

.feature-included .feature-icon {
  color: var(--color-success-cyan);
}

.feature-excluded .feature-icon {
  color: var(--color-text-tertiary);
  opacity: 0.5;
}

.feature-included .feature-name {
  color: var(--color-text-secondary);
}

.feature-excluded .feature-name {
  color: var(--color-text-tertiary);
  opacity: 0.5;
  text-decoration: line-through;
}

.btn-select {
  width: 100%;
  padding: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text-primary);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-fast);
  margin-top: var(--spacing-md);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn-select::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.2), transparent);
  transition: left var(--transition-normal);
}

.btn-select:hover {
  background: var(--color-highlight-blue);
  color: var(--color-brand-blue);
  border-color: var(--color-highlight-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-select:hover::before {
  left: 100%;
}

/* Footer */
.footer {
  background: rgba(0, 0, 0, 0.2);
  padding: var(--spacing-xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(0, 229, 255, 0.5) 20%, 
    rgba(0, 229, 255, 0.8) 50%, 
    rgba(0, 229, 255, 0.5) 80%, 
    transparent 100%
  );
  animation: footerGlow 3s ease-in-out infinite;
}

@keyframes footerGlow {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* Download Section */
.download {
  padding: var(--spacing-2xl) 0;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.1) 30%, rgba(0, 0, 0, 0.1) 70%, transparent 100%);
}

.download-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.download-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-black);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.download-description {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
}

.download-platforms {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.platform-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  text-align: center;
  transition: all var(--transition-normal);
}

.platform-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(0, 229, 255, 0.3);
  transform: translateY(-4px);
}

.platform-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-sm);
  color: var(--color-highlight-blue);
  display: flex;
  align-items: center;
  justify-content: center;
}

.platform-card h3 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.platform-card p {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.download-notice {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--border-radius-sm);
  border-left: 3px solid var(--color-highlight-blue);
}

.download-notice svg {
  flex-shrink: 0;
  color: var(--color-highlight-blue);
}

.download-qr {
  display: flex;
  justify-content: center;
}

.qr-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
}

.qr-code {
  width: 180px;
  height: 180px;
  margin: 0 auto var(--spacing-md);
  background: white;
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm);
}

.qr-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brand-blue);
}

.qr-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

@media (max-width: 767px) {
  .download-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .download-platforms {
    grid-template-columns: 1fr;
  }
}

.footer-content {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  padding: var(--spacing-lg) 0;
}

/* 公司品牌 */
.footer-brand {
  text-align: center;
}

.company-name {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: 4px;
  background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-highlight-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.company-slogan {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin: 0;
}

/* 知识产权与法律 */
.footer-legal {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  align-items: center;
}

.footer-ip-badges {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  justify-content: center;
}

.ip-badge {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  white-space: nowrap;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-highlight-blue);
}

/* 版权与免责 */
.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-sm);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}

.footer-disclaimer {
  font-size: 11px;
  color: var(--color-text-tertiary);
  margin: 0;
}

/* 移动端适配 */
@media (max-width: 767px) {
  .footer-content {
    gap: var(--spacing-sm);
    padding: var(--spacing-md) 0;
  }
  
  .footer-ip-badges {
    flex-direction: column;
    gap: var(--spacing-xs);
    width: 100%;
  }
  
  .ip-badge {
    width: 100%;
    max-width: 280px;
    text-align: center;
  }
  
  .footer-links {
    font-size: 11px;
  }
}

/* Why Choose Section */
.why-choose {
  padding: var(--spacing-2xl) 0;
  background: rgba(0, 0, 0, 0.05);
}

.comparison-table {
  max-width: 900px;
  margin: var(--spacing-xl) auto 0;
  padding: 0 var(--spacing-md);
}

.comparison-header,
.comparison-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 3px;
  margin-bottom: 3px;
}

.comparison-cell {
  padding: var(--spacing-md);
  text-align: center;
  font-size: var(--font-size-sm);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.1);
}

.header-cell {
  background: rgba(255, 255, 255, 0.05);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  border-radius: var(--border-radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.highlight-header {
  background: linear-gradient(135deg, var(--color-brand-blue), var(--color-highlight-blue));
  color: white;
  border: 1px solid rgba(0, 229, 255, 0.3);
}

.label-cell {
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text-secondary);
  text-align: left;
  font-weight: var(--font-weight-medium);
  border-radius: var(--border-radius-sm) 0 0 var(--border-radius-sm);
  border-right: 2px solid rgba(0, 229, 255, 0.2);
}

.value-cell {
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text-tertiary);
}

.value-cell.highlight {
  background: rgba(0, 229, 255, 0.1);
  color: var(--color-highlight-blue);
  font-weight: var(--font-weight-medium);
  position: relative;
  border: 1px solid rgba(0, 229, 255, 0.25);
}

.value-cell.highlight::before {
  content: '✓';
  position: absolute;
  left: 8px;
  color: var(--color-success-cyan);
  font-weight: var(--font-weight-bold);
}

.comparison-row:last-child .label-cell {
  border-radius: 0 0 0 var(--border-radius-sm);
}

.comparison-row:last-child .value-cell:last-child {
  border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
}

@media (max-width: 767px) {
  .comparison-table {
    font-size: var(--font-size-xs);
  }
  
  .comparison-cell {
    padding: var(--spacing-sm);
  }
}

/* Testimonials Section */
.testimonials {
  padding: var(--spacing-2xl) 0;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.1) 50%, transparent 100%);
  overflow: hidden;
}

.testimonials-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  position: relative;
}

.testimonials-track {
  display: flex;
  gap: var(--spacing-lg);
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  padding: var(--spacing-md) 0;
}

.testimonial-card {
  flex: 0 0 calc(33.333% - var(--spacing-lg));
  min-width: 300px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  transition: all var(--transition-normal);
  opacity: 0.6;
  transform: scale(0.95);
}

.testimonial-card.active {
  opacity: 1;
  transform: scale(1);
  border-color: rgba(0, 229, 255, 0.3);
  box-shadow: 0 10px 40px rgba(0, 229, 255, 0.1);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 255, 0.3);
}

.testimonial-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-brand-blue), var(--color-highlight-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.testimonial-info h4 {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: 2px;
}

.testimonial-info p {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.testimonial-rating {
  color: #FFD700;
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-sm);
  letter-spacing: 2px;
}

.testimonial-content {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
  font-style: italic;
}

.testimonials-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.testimonial-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.testimonial-btn:hover {
  background: rgba(0, 229, 255, 0.1);
  border-color: var(--color-highlight-blue);
  color: var(--color-highlight-blue);
  transform: scale(1.1);
}

.testimonials-dots {
  display: flex;
  gap: 8px;
}

.testimonial-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.testimonial-dot.active {
  background: var(--color-highlight-blue);
  transform: scale(1.2);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
}

.testimonial-dot:hover {
  background: rgba(0, 229, 255, 0.5);
}

@media (max-width: 1023px) {
  .testimonial-card {
    flex: 0 0 calc(50% - var(--spacing-lg));
  }
}

@media (max-width: 767px) {
  .testimonial-card {
    flex: 0 0 100%;
    min-width: 280px;
  }
}

/* FAQ Section */
.faq {
  padding: var(--spacing-2xl) 0;
  background: rgba(0, 0, 0, 0.05);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.faq-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.faq-item.active {
  border-color: rgba(0, 229, 255, 0.3);
  box-shadow: 0 4px 20px rgba(0, 229, 255, 0.1);
}

.faq-question {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  background: none;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  color: var(--color-text-primary);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  text-align: left;
  transition: color var(--transition-fast);
}

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

.faq-question-text {
  flex: 1;
  padding-right: var(--spacing-md);
}

.faq-icon {
  flex-shrink: 0;
  color: var(--color-text-tertiary);
  transition: transform var(--transition-normal);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--color-highlight-blue);
}

.faq-chevron {
  transition: transform var(--transition-normal);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-content {
  padding: 0 var(--spacing-lg) var(--spacing-md);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.8;
}

/* About Section */
.about {
  padding: var(--spacing-2xl) 0;
  background: rgba(0, 0, 0, 0.1);
}

.about-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.about-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  text-align: center;
  transition: all var(--transition-normal);
  opacity: 0;
  transform: translateY(30px);
}

.about-card.animate-in {
  opacity: 1;
  transform: translateY(0);
  animation: fadeInUp 0.6s ease-out forwards;
}

.about-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 255, 0.3);
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.3),
    0 0 20px rgba(0, 229, 255, 0.1);
}

.about-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
  display: inline-block;
  transition: transform var(--transition-normal);
}

.about-card:hover .about-icon {
  transform: scale(1.2) rotate(10deg);
}

.about-card h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-highlight-blue);
  margin-bottom: var(--spacing-sm);
  transition: transform var(--transition-fast);
}

.about-card:hover h3 {
  transform: scale(1.05);
}

.about-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  transition: color var(--transition-fast);
}

.about-card:hover p {
  color: var(--color-text-primary);
}

/* CTA Section */
.cta {
  padding: var(--spacing-2xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.1) 0%, transparent 70%);
  pointer-events: none;
  animation: pulseGlow 4s ease-in-out infinite;
}

.cta-badge {
  display: inline-block;
  padding: 8px 20px;
  background: linear-gradient(135deg, rgba(255, 107, 107, 0.2), rgba(255, 142, 83, 0.2));
  border: 1px solid rgba(255, 107, 107, 0.4);
  border-radius: 50px;
  color: #FF8E53;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-md);
  animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255, 107, 107, 0.4); }
  50% { transform: scale(1.05); box-shadow: 0 0 20px 5px rgba(255, 107, 107, 0.2); }
}

.cta-features {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
  flex-wrap: wrap;
}

.cta-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.feature-check {
  width: 20px;
  height: 20px;
  background: var(--color-success-cyan);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brand-blue);
  font-size: 12px;
  font-weight: var(--font-weight-bold);
}

@keyframes pulseGlow {
  0%, 100% {
    opacity: 0.5;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.1);
  }
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-black);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.8s ease-out;
  background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-highlight-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-description {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.btn-large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  background: transparent;
  color: var(--color-text-primary);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn-secondary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left var(--transition-normal);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-highlight-blue);
  transform: translateY(-2px);
}

.btn-secondary:hover::before {
  left: 100%;
}

/* Loading Animation */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, #000080 0%, var(--color-brand-blue) 50%, #000080 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-content {
  text-align: center;
}

.loader-logo {
  font-size: 48px;
  font-weight: var(--font-weight-black);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.logo-sigma {
  font-size: 56px;
  background: linear-gradient(135deg, var(--color-highlight-blue), #fff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: sigmaPulse 1.5s ease-in-out infinite;
}

@keyframes sigmaPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.1); opacity: 0.8; }
}

.loader-bar {
  width: 200px;
  height: 4px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: var(--spacing-md);
}

.loader-progress {
  height: 100%;
  background: linear-gradient(90deg, var(--color-brand-blue), var(--color-highlight-blue));
  width: 0;
  transition: width 0.3s ease-out;
  border-radius: 2px;
}

.loader-status {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  animation: statusBlink 1.5s ease-in-out infinite;
}

@keyframes statusBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.loader-content {
  text-align: center;
}

.loader-logo {
  font-size: 48px;
  font-weight: var(--font-weight-black);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
  animation: pulse 1.5s ease-in-out infinite;
}

.loader-bar {
  width: 200px;
  height: 4px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  overflow: hidden;
}

.loader-progress {
  height: 100%;
  background: var(--color-highlight-blue);
  width: 0;
  animation: loadProgress 2s ease-out forwards;
}

@keyframes loadProgress {
  0% { width: 0; }
  100% { width: 100%; }
}

/* Smooth Section Transitions */
section {
  position: relative;
}

section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(to bottom, transparent, var(--color-brand-blue) 50%);
  pointer-events: none;
  opacity: 0.3;
}

/* Enhanced Focus States */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-highlight-blue);
  outline-offset: 2px;
}

/* Better Text Selection */
::selection {
  background: var(--color-highlight-blue);
  color: var(--color-brand-blue);
}

/* Enhanced Typography - 统一标题标准 */
.section-title {
  position: relative;
  display: block;
  text-align: center;
  margin-bottom: var(--spacing-sm);
  font-size: clamp(32px, 5vw, 56px);
  font-weight: var(--font-weight-bold);
  white-space: nowrap;
  line-height: 1.2;
}

.section-description {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  color: var(--color-text-secondary);
  font-size: clamp(16px, 2vw, 20px);
  white-space: nowrap;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-brand-blue), var(--color-highlight-blue));
  border-radius: 2px;
}

/* Card Number Badge */
.product-card {
  counter-increment: card-counter;
}

.product-card::before {
  counter-increment: card-counter;
  content: counter(card-counter);
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-black);
  color: rgba(255, 255, 255, 0.05);
  line-height: 1;
  transition: color var(--transition-normal);
  pointer-events: none;
}

.product-card:hover::before {
  color: rgba(0, 229, 255, 0.1);
}

/* Gradient Text Utility */
.gradient-text {
  background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-highlight-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Glass Effect Enhancement */
.glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Hover Lift Effect */
.hover-lift {
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* Focus Ring Animation */
@keyframes focusRing {
  0% {
    box-shadow: 0 0 0 0 rgba(0, 229, 255, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(0, 229, 255, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(0, 229, 255, 0);
  }
}

.btn-primary:focus {
  animation: focusRing 1.5s infinite;
}

/* Staggered Animation Container */
.stagger-children > * {
  opacity: 0;
  animation: fadeInUp 0.6s ease-out forwards;
}

.stagger-children > *:nth-child(1) { animation-delay: 0.1s; }
.stagger-children > *:nth-child(2) { animation-delay: 0.2s; }
.stagger-children > *:nth-child(3) { animation-delay: 0.3s; }
.stagger-children > *:nth-child(4) { animation-delay: 0.4s; }
.stagger-children > *:nth-child(5) { animation-delay: 0.5s; }
.stagger-children > *:nth-child(6) { animation-delay: 0.6s; }

/* Skeleton Loading Effect */
.skeleton {
  background: linear-gradient(90deg, 
    rgba(255, 255, 255, 0.05) 25%, 
    rgba(255, 255, 255, 0.1) 50%, 
    rgba(255, 255, 255, 0.05) 75%
  );
  background-size: 200% 100%;
  animation: skeletonLoading 1.5s infinite;
  border-radius: var(--border-radius-sm);
}

@keyframes skeletonLoading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Tooltip Style */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--color-brand-blue);
  color: var(--color-text-primary);
  font-size: var(--font-size-xs);
  border-radius: var(--border-radius-sm);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: 100;
  pointer-events: none;
}

[data-tooltip]:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-4px);
}

/* Scroll Reveal Animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Parallax Container */
.parallax-container {
  perspective: 1px;
  height: 100vh;
  overflow-x: hidden;
  overflow-y: auto;
}

.parallax-layer {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

.parallax-layer-back {
  transform: translateZ(-1px) scale(2);
}

.parallax-layer-front {
  transform: translateZ(0);
}

/* Card Stack Effect */
.card-stack {
  position: relative;
}

.card-stack .product-card:nth-child(1) {
  z-index: 6;
}

.card-stack .product-card:nth-child(2) {
  z-index: 5;
  transform: translateY(-10px);
}

.card-stack .product-card:nth-child(3) {
  z-index: 4;
  transform: translateY(-20px);
}

.card-stack .product-card:nth-child(4) {
  z-index: 3;
  transform: translateY(-30px);
}

.card-stack .product-card:nth-child(5) {
  z-index: 2;
  transform: translateY(-40px);
}

.card-stack .product-card:nth-child(6) {
  z-index: 1;
  transform: translateY(-50px);
}

/* Magnetic Button Effect */
.magnetic {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.magnetic:hover {
  transform: scale(1.05);
}

/* Glow Effect */
.glow {
  position: relative;
}

.glow::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, 
    var(--color-brand-blue), 
    var(--color-highlight-blue), 
    var(--color-brand-blue)
  );
  background-size: 400% 400%;
  z-index: -1;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.3s ease;
  filter: blur(10px);
}

.glow:hover::before {
  opacity: 0.5;
  animation: glowRotate 3s ease infinite;
}

@keyframes glowRotate {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* Clip Path Shapes */
.clip-rounded {
  clip-path: polygon(
    0% 0%,
    100% 0%,
    100% calc(100% - 20px),
    calc(100% - 20px) 100%,
    0% 100%
  );
}

.clip-diagonal {
  clip-path: polygon(
    20px 0%,
    100% 0%,
    100% calc(100% - 20px),
    calc(100% - 20px) 100%,
    0% 100%,
    0% 20px
  );
}

/* Noise Texture Overlay */
.noise-overlay {
  position: relative;
}

.noise-overlay::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  opacity: 0.03;
  pointer-events: none;
  mix-blend-mode: overlay;
}

/* Border Gradient */
.border-gradient {
  position: relative;
  background: transparent;
  border: none;
}

.border-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, 
    var(--color-brand-blue), 
    var(--color-highlight-blue)
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

/* Shimmer Effect */
.shimmer {
  position: relative;
  overflow: hidden;
}

.shimmer::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  100% {
    left: 100%;
  }
}

/* Count Up Animation */
.count-up {
  font-variant-numeric: tabular-nums;
}

/* Marquee Effect */
.marquee {
  overflow: hidden;
  white-space: nowrap;
}

.marquee-content {
  display: inline-block;
  animation: marquee 20s linear infinite;
}

@keyframes marquee {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* Tilt Effect */
.tilt {
  transform-style: preserve-3d;
  perspective: 1000px;
}

.tilt-content {
  transform: translateZ(20px);
}

/* Hover Border Draw Effect */
.hover-border-draw {
  position: relative;
}

.hover-border-draw::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 2px solid transparent;
  border-radius: inherit;
  transition: border-color 0.3s ease;
}

.hover-border-draw:hover::before {
  border-color: var(--color-highlight-blue);
}

/* Scale on Hover */
.scale-hover {
  transition: transform 0.3s ease;
}

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

/* Rotate on Hover */
.rotate-hover {
  transition: transform 0.3s ease;
}

.rotate-hover:hover {
  transform: rotate(5deg);
}

/* Skew on Hover */
.skew-hover {
  transition: transform 0.3s ease;
}

.skew-hover:hover {
  transform: skewX(-5deg);
}

/* Bounce Animation */
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-20px);
  }
  60% {
    transform: translateY(-10px);
  }
}

.bounce {
  animation: bounce 2s infinite;
}

/* Wobble Animation */
@keyframes wobble {
  0%, 100% {
    transform: rotate(0deg);
  }
  15% {
    transform: rotate(-5deg);
  }
  30% {
    transform: rotate(3deg);
  }
  45% {
    transform: rotate(-3deg);
  }
  60% {
    transform: rotate(2deg);
  }
  75% {
    transform: rotate(-1deg);
  }
}

.wobble:hover {
  animation: wobble 0.5s ease-in-out;
}

/* Flip Animation */
@keyframes flip {
  0% {
    transform: perspective(400px) rotateY(0);
  }
  100% {
    transform: perspective(400px) rotateY(180deg);
  }
}

.flip {
  transform-style: preserve-3d;
  transition: transform 0.6s;
}

.flip:hover {
  transform: perspective(400px) rotateY(180deg);
}

/* Swing Animation */
@keyframes swing {
  0%, 100% {
    transform: rotate(0deg);
    transform-origin: top center;
  }
  20% {
    transform: rotate(15deg);
    transform-origin: top center;
  }
  40% {
    transform: rotate(-10deg);
    transform-origin: top center;
  }
  60% {
    transform: rotate(5deg);
    transform-origin: top center;
  }
  80% {
    transform: rotate(-3deg);
    transform-origin: top center;
  }
}

.swing {
  transform-origin: top center;
  animation: swing 2s ease-in-out infinite;
}

/* Fade In Left */
@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translate3d(-30px, 0, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

.fadeInLeft {
  animation: fadeInLeft 0.6s ease-out forwards;
}

/* Fade In Right */
@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translate3d(30px, 0, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

.fadeInRight {
  animation: fadeInRight 0.6s ease-out forwards;
}

/* Zoom In */
@keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale(0.5);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.zoomIn {
  animation: zoomIn 0.6s ease-out forwards;
}

/* Zoom Out */
@keyframes zoomOut {
  from {
    opacity: 1;
    transform: scale(1);
  }
  to {
    opacity: 0;
    transform: scale(0.5);
  }
}

.zoomOut {
  animation: zoomOut 0.6s ease-out forwards;
}

/* Slide Up */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translate3d(0, 50px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

.slideUp {
  animation: slideUp 0.6s ease-out forwards;
}

/* Slide Down */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translate3d(0, -50px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

.slideDown {
  animation: slideDown 0.6s ease-out forwards;
}

/* Elastic Scale */
@keyframes elasticScale {
  0% {
    transform: scale(1);
  }
  30% {
    transform: scale(1.2);
  }
  50% {
    transform: scale(0.9);
  }
  70% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

.elastic-scale {
  animation: elasticScale 0.8s ease-out;
}

/* Heartbeat */
@keyframes heartbeat {
  0% {
    transform: scale(1);
  }
  14% {
    transform: scale(1.1);
  }
  28% {
    transform: scale(1);
  }
  42% {
    transform: scale(1.1);
  }
  70% {
    transform: scale(1);
  }
}

.heartbeat:hover {
  animation: heartbeat 1.5s ease-in-out infinite;
}

/* Gradient Border Animation */
.gradient-border {
  position: relative;
  background: transparent;
  border: none;
}

.gradient-border::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 2px;
  background: linear-gradient(45deg, 
    #ff0000, #ff7300, #fffb00, #48ff00, 
    #00ffd5, #002bff, #7a00ff, #ff00c8, #ff0000
  );
  background-size: 400%;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: gradientBorder 20s linear infinite;
}

@keyframes gradientBorder {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* Spotlight Effect */
.spotlight {
  position: relative;
  overflow: hidden;
}

.spotlight::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
  transition: left 0.5s ease;
}

.spotlight:hover::before {
  left: 100%;
}

/* Reflection Effect */
.reflect {
  position: relative;
}

.reflect::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.1),
    transparent
  );
  transform: scaleY(-1);
  opacity: 0.5;
}

/* Neon Glow */
.neon {
  text-shadow: 
    0 0 5px var(--color-highlight-blue),
    0 0 10px var(--color-highlight-blue),
    0 0 20px var(--color-highlight-blue),
    0 0 40px var(--color-highlight-blue);
}

.neon:hover {
  text-shadow: 
    0 0 10px var(--color-highlight-blue),
    0 0 20px var(--color-highlight-blue),
    0 0 40px var(--color-highlight-blue),
    0 0 80px var(--color-highlight-blue);
}

/* Cyberpunk Glitch */
@keyframes glitch {
  0% {
    transform: translate(0);
  }
  20% {
    transform: translate(-2px, 2px);
  }
  40% {
    transform: translate(-2px, -2px);
  }
  60% {
    transform: translate(2px, 2px);
  }
  80% {
    transform: translate(2px, -2px);
  }
  100% {
    transform: translate(0);
  }
}

.glitch:hover {
  animation: glitch 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) both infinite;
}

/* Liquid Effect */
@keyframes liquid {
  0% {
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  }
  25% {
    border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%;
  }
  50% {
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  }
  75% {
    border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%;
  }
  100% {
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  }
}

.liquid {
  animation: liquid 8s ease-in-out infinite;
}

/* Morphing Shape */
@keyframes morph {
  0% {
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
  }
  50% {
    border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
  }
  100% {
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
  }
}

.morph {
  animation: morph 8s ease-in-out infinite;
}

/* Expanding Border */
.expanding-border {
  position: relative;
}

.expanding-border::before,
.expanding-border::after {
  content: '';
  position: absolute;
  width: 0;
  height: 0;
  transition: all 0.3s ease;
  opacity: 0;
}

.expanding-border::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid var(--color-highlight-blue);
  border-left: 2px solid var(--color-highlight-blue);
}

.expanding-border::after {
  bottom: -1px;
  right: -1px;
  border-bottom: 2px solid var(--color-highlight-blue);
  border-right: 2px solid var(--color-highlight-blue);
}

.expanding-border:hover::before,
.expanding-border:hover::after {
  width: calc(100% + 2px);
  height: calc(100% + 2px);
  opacity: 1;
}

/* Corner Fold */
.corner-fold {
  position: relative;
  overflow: hidden;
}

.corner-fold::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 30px 30px 0;
  border-color: transparent var(--color-brand-blue) transparent transparent;
  transition: border-width 0.3s ease;
}

.corner-fold:hover::before {
  border-width: 0 40px 40px 0;
}

/* Scan Line Effect */
.scan-line {
  position: relative;
  overflow: hidden;
}

.scan-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(
    transparent,
    rgba(0, 229, 255, 0.1),
    transparent
  );
  animation: scan 3s linear infinite;
}

@keyframes scan {
  0% {
    top: -50%;
  }
  100% {
    top: 100%;
  }
}

/* Dotted Pattern Overlay */
.dotted-overlay {
  position: relative;
}

.dotted-overlay::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: radial-gradient(var(--color-highlight-blue) 1px, transparent 1px);
  background-size: 20px 20px;
  opacity: 0.1;
  pointer-events: none;
}

/* Striped Background */
.striped-bg {
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(0, 229, 255, 0.03) 10px,
    rgba(0, 229, 255, 0.03) 20px
  );
}

/* Circular Reveal */
@keyframes circularReveal {
  0% {
    clip-path: circle(0% at 50% 50%);
  }
  100% {
    clip-path: circle(150% at 50% 50%);
  }
}

.circular-reveal {
  animation: circularReveal 1s ease-out forwards;
}

/* Spiral In */
@keyframes spiralIn {
  0% {
    transform: rotate(-180deg) scale(0);
    opacity: 0;
  }
  100% {
    transform: rotate(0deg) scale(1);
    opacity: 1;
  }
}

.spiral-in {
  animation: spiralIn 0.6s ease-out forwards;
}

/* Elastic Bounce */
@keyframes elasticBounce {
  0% {
    transform: scale(1);
  }
  25% {
    transform: scale(1.2);
  }
  50% {
    transform: scale(0.9);
  }
  75% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

.elastic-bounce {
  animation: elasticBounce 0.8s ease-out;
}

/* Floating Shapes */
.floating-shapes {
  position: relative;
  overflow: hidden;
}

.floating-shapes::before {
  content: '';
  position: absolute;
  width: 200%;
  height: 200%;
  top: -50%;
  left: -50%;
  background: 
    radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.1) 0%, transparent 20%),
    radial-gradient(circle at 80% 70%, rgba(0, 0, 228, 0.1) 0%, transparent 20%),
    radial-gradient(circle at 40% 80%, rgba(0, 212, 255, 0.05) 0%, transparent 15%),
    radial-gradient(circle at 70% 20%, rgba(0, 0, 228, 0.08) 0%, transparent 15%);
  animation: floatShapes 20s linear infinite;
}

@keyframes floatShapes {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Gradient Text Animation */
@keyframes gradientText {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.gradient-text-animate {
  background: linear-gradient(-45deg, #00d4ff, #0000e4, #00d4ff, #0000e4);
  background-size: 400% 400%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientText 5s ease infinite;
}

/* Pulse Ring */
@keyframes pulseRing {
  0% {
    transform: scale(0.8);
    opacity: 1;
  }
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

.pulse-ring {
  position: relative;
}

.pulse-ring::before {
  content: '';
  position: absolute;
  inset: -5px;
  border: 2px solid var(--color-highlight-blue);
  border-radius: inherit;
  animation: pulseRing 2s ease-out infinite;
}

/* Double Pulse */
@keyframes doublePulse {
  0% {
    transform: scale(0.8);
    opacity: 1;
  }
  50% {
    transform: scale(1);
    opacity: 0.5;
  }
  100% {
    transform: scale(0.8);
    opacity: 1;
  }
}

.double-pulse::before,
.double-pulse::after {
  content: '';
  position: absolute;
  inset: -5px;
  border: 2px solid var(--color-highlight-blue);
  border-radius: inherit;
  animation: doublePulse 2s ease-out infinite;
}

.double-pulse::after {
  animation-delay: 0.5s;
}

/* Ripple Ring */
@keyframes rippleRing {
  0% {
    transform: scale(1);
    opacity: 0.8;
  }
  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}

.ripple-ring {
  position: relative;
}

.ripple-ring::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid var(--color-highlight-blue);
  border-radius: inherit;
  animation: rippleRing 1.5s ease-out infinite;
}

/* Breathing Border */
@keyframes breathingBorder {
  0%, 100% {
    border-color: rgba(0, 229, 255, 0.3);
  }
  50% {
    border-color: rgba(0, 229, 255, 0.8);
  }
}

.breathing-border {
  animation: breathingBorder 3s ease-in-out infinite;
}

/* Rotating Border */
@keyframes rotatingBorder {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.rotating-border {
  position: relative;
  overflow: hidden;
}

.rotating-border::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: conic-gradient(
    from 0deg,
    transparent,
    var(--color-highlight-blue),
    transparent
  );
  animation: rotatingBorder 3s linear infinite;
  border-radius: inherit;
}

/* Dashed Border Animation */
@keyframes dashBorder {
  to {
    background-position: 100% 0;
  }
}

.dashed-border {
  border: 2px dashed rgba(0, 229, 255, 0.3);
  background: linear-gradient(
    90deg,
    rgba(0, 229, 255, 0.1) 50%,
    transparent 50%
  );
  background-size: 20px 20px;
  animation: dashBorder 1s linear infinite;
}

/* Corner Indicator */
.corner-indicator {
  position: relative;
}

.corner-indicator::before,
.corner-indicator::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border-color: var(--color-highlight-blue);
  border-style: solid;
  transition: all 0.3s ease;
}

.corner-indicator::before {
  top: 0;
  left: 0;
  border-width: 2px 0 0 2px;
}

.corner-indicator::after {
  bottom: 0;
  right: 0;
  border-width: 0 2px 2px 0;
}

.corner-indicator:hover::before,
.corner-indicator:hover::after {
  width: 30px;
  height: 30px;
}

/* Crosshair */
.crosshair {
  position: relative;
}

.crosshair::before,
.crosshair::after {
  content: '';
  position: absolute;
  background: var(--color-highlight-blue);
  opacity: 0.3;
}

.crosshair::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
  transform: translateY(-50%);
}

.crosshair::after {
  left: 50%;
  top: 0;
  width: 1px;
  height: 100%;
  transform: translateX(-50%);
}

/* Grid Overlay */
.grid-overlay {
  position: relative;
}

.grid-overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 229, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

/* Hexagon Shape */
.hexagon {
  clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
}

/* Diamond Shape */
.diamond {
  transform: rotate(45deg);
}

/* Star Shape */
.star {
  clip-path: polygon(
    50% 0%,
    61% 35%,
    98% 35%,
    68% 57%,
    79% 91%,
    50% 70%,
    21% 91%,
    32% 57%,
    2% 35%,
    39% 35%
  );
}


/* 任务11: 开悟者理论强化样式 */
.enlightenment-theory {
  margin-bottom: var(--spacing-2xl);
}

.comparison-grid-enhanced {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--spacing-xl);
  max-width: 1000px;
  margin: var(--spacing-xl) auto;
  align-items: start;
}

.fake-effort-column,
.real-repetition-column {
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  transition: all var(--transition-normal);
  min-height: 400px;
}

.fake-effort-column {
  border: 2px solid rgba(255, 107, 107, 0.3);
}

.real-repetition-column {
  border: 2px solid rgba(81, 207, 102, 0.3);
}

.fake-effort-column:hover {
  border-color: rgba(255, 107, 107, 0.5);
  box-shadow: 0 10px 40px rgba(255, 107, 107, 0.1);
}

.real-repetition-column:hover {
  border-color: rgba(81, 207, 102, 0.5);
  box-shadow: 0 10px 40px rgba(81, 207, 102, 0.1);
}

.column-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.fake-header {
  border-bottom-color: rgba(255, 107, 107, 0.3);
}

.real-header {
  border-bottom-color: rgba(81, 207, 102, 0.3);
}

.header-icon {
  font-size: 24px;
}

.header-icon-svg {
  flex-shrink: 0;
  stroke: currentColor;
  transition: all var(--transition-fast);
  width: 32px;
  height: 32px;
}

.real-header .header-icon-svg {
  color: rgba(81, 207, 102, 1);
}

.fake-header .header-icon-svg {
  color: rgba(255, 107, 107, 1);
}

.column-header h3 {
  font-size: 24px;
  font-weight: var(--font-weight-black);
  color: var(--color-text-primary);
}

.effort-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.effort-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.effort-list li:hover {
  background: rgba(255, 255, 255, 0.05);
  transform: translateX(4px);
}

.effort-icon {
  font-size: 24px;
  flex-shrink: 0;
  margin-top: 2px;
}

.effort-icon-svg {
  flex-shrink: 0;
  stroke: rgba(255, 255, 255, 0.9);
  transition: all var(--transition-fast);
}

.real-repetition-column .effort-icon-svg {
  stroke: rgba(81, 207, 102, 0.8);
}

.fake-effort-column .effort-icon-svg {
  stroke: rgba(255, 107, 107, 0.8);
}

.effort-list li:hover .effort-icon-svg {
  stroke: rgba(255, 255, 255, 1);
  transform: scale(1.1);
}

.effort-content {
  flex: 1;
}

.effort-content strong {
  display: block;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.effort-content p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.vs-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg) 0;
}

.vs-text {
  font-size: 28px;
  font-weight: var(--font-weight-black);
  color: var(--color-highlight-blue);
  background: rgba(0, 0, 0, 0.3);
  padding: var(--spacing-md);
  border-radius: 50%;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid var(--color-highlight-blue);
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.4);
  animation: vsPulse 2s ease-in-out infinite;
}

@keyframes vsPulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 30px rgba(0, 229, 255, 0.4); }
  50% { transform: scale(1.05); box-shadow: 0 0 40px rgba(0, 229, 255, 0.6); }
}

.theory-quote {
  max-width: 800px;
  margin: var(--spacing-xl) auto 0;
  text-align: center;
  padding: var(--spacing-xl);
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.1) 0%, rgba(0, 229, 255, 0.05) 100%);
  border-radius: var(--border-radius-md);
  border: 1px solid rgba(0, 229, 255, 0.2);
}

.quote-icon {
  color: var(--color-highlight-blue);
  opacity: 0.3;
  margin-bottom: var(--spacing-sm);
}

.theory-quote p {
  font-size: var(--font-size-lg);
  font-style: italic;
  color: var(--color-text-primary);
  line-height: 1.8;
}

@media (max-width: 768px) {
  .comparison-grid-enhanced {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .vs-divider {
    padding: var(--spacing-sm) 0;
  }
  
  .vs-text {
    width: 50px;
    height: 50px;
    font-size: var(--font-size-xl);
  }
}

/* 任务12: 陪伴者理论情感共鸣样式 - 重新设计 */
.companion-theory {
  max-width: 900px;
  margin: var(--spacing-2xl) auto;
  padding: 0;
}

.companion-theory h3 {
  font-size: 32px;
  font-weight: 600;
  color: var(--color-text-primary);
  text-align: center;
  margin-bottom: var(--spacing-xl);
  line-height: 1.4;
}

.emotional-content {
  display: grid;
  gap: var(--spacing-lg);
}

.pain-point {
  text-align: left;
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.02);
  border-radius: 12px;
  border-left: 3px solid rgba(0, 229, 255, 0.5);
}

.pain-point .question {
  font-size: 20px;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.pain-point .answer {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
}

.solution {
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.02);
  border-radius: 12px;
}

.solution ul {
  list-style: none;
  display: grid;
  gap: var(--spacing-md);
}

.solution li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: 0;
  background: none;
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.8;
}

.solution li::before {
  content: '·';
  font-size: 24px;
  color: rgba(0, 229, 255, 0.6);
  font-weight: bold;
  flex-shrink: 0;
}

.emotional-quote {
  text-align: center;
  font-size: 18px;
  font-style: normal;
  color: rgba(255, 255, 255, 0.6);
  margin-top: var(--spacing-xl);
  padding: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  line-height: 1.8;
}

/* 任务13: 降维打击对比样式 */
.dimensional-strike {
  max-width: 1000px;
  margin: var(--spacing-2xl) auto;
  padding: var(--spacing-xl);
  background: linear-gradient(135deg, rgba(0, 0, 228, 0.1) 0%, rgba(0, 229, 255, 0.05) 100%);
  border-radius: var(--border-radius-lg);
  border: 2px solid rgba(0, 229, 255, 0.3);
  text-align: center;
}

.dimensional-strike h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-black);
  color: var(--color-highlight-blue);
  margin-bottom: var(--spacing-lg);
}

.strike-statement {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  line-height: 1.6;
  margin-bottom: var(--spacing-xl);
}

.generation-comparison {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.old-generation,
.new-generation {
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-normal);
}

.old-generation {
  background: rgba(128, 128, 128, 0.1);
  border: 2px solid rgba(128, 128, 128, 0.3);
}

.new-generation {
  background: rgba(0, 229, 255, 0.1);
  border: 2px solid rgba(0, 229, 255, 0.3);
}

.old-generation:hover {
  transform: scale(0.95);
  opacity: 0.8;
}

.new-generation:hover {
  transform: scale(1.05);
  box-shadow: 0 20px 60px rgba(0, 229, 255, 0.2);
}

.old-generation h4,
.new-generation h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-xs);
}

.old-generation h4 {
  color: #808080;
}

.new-generation h4 {
  color: var(--color-highlight-blue);
}

.old-generation p,
.new-generation p {
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-md);
}

.old-generation p {
  color: #808080;
}

.new-generation p {
  color: var(--color-highlight-blue);
}

.old-generation ul,
.new-generation ul {
  list-style: none;
  text-align: left;
}

.old-generation li,
.new-generation li {
  font-size: var(--font-size-sm);
  padding: var(--spacing-xs) 0;
  padding-left: var(--spacing-md);
  position: relative;
}

.old-generation li::before {
  content: '❌';
  position: absolute;
  left: 0;
  color: #808080;
}

.new-generation li::before {
  content: '✅';
  position: absolute;
  left: 0;
  color: var(--color-success-cyan);
}

.arrow {
  font-size: var(--font-size-3xl);
  color: var(--color-highlight-blue);
  font-weight: var(--font-weight-bold);
  animation: arrowPulse 2s ease-in-out infinite;
}

@keyframes arrowPulse {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(10px); }
}

@media (max-width: 768px) {
  .generation-comparison {
    grid-template-columns: 1fr;
  }
  
  .arrow {
    transform: rotate(90deg);
    margin: var(--spacing-md) 0;
  }
}

/* 任务14: 限时优惠紧迫感样式 - 优化版 */
.limited-offer {
  margin: var(--spacing-xl) 0;
  padding: 0;
  background: linear-gradient(135deg, rgba(255, 107, 107, 0.12) 0%, rgba(255, 159, 64, 0.08) 100%);
  border-radius: 16px;
  border: 2px solid rgba(255, 107, 107, 0.3);
  overflow: hidden;
  position: relative;
}

.limited-offer::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

.offer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  background: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid rgba(255, 107, 107, 0.2);
}

.offer-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: linear-gradient(135deg, #FF6B6B 0%, #FF9F40 100%);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  border-radius: 20px;
  box-shadow: 0 4px 12px rgba(255, 107, 107, 0.4);
  animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.offer-date {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
}

.offer-content {
  padding: var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-xl);
}

.offer-main {
  flex: 1;
  text-align: left;
}

.offer-title {
  font-size: 20px;
  color: var(--color-text-primary);
  margin-bottom: 8px;
  font-weight: 600;
}

.offer-discount {
  font-size: 32px;
  font-weight: 800;
  background: linear-gradient(135deg, #FF6B6B 0%, #FF9F40 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.countdown {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

.countdown-timer {
  display: flex;
  align-items: center;
  gap: 8px;
  font-variant-numeric: tabular-nums;
}

.countdown-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  padding: 10px 14px;
  min-width: 70px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.countdown-value {
  font-size: 32px;
  font-weight: 700;
  color: #FF6B6B;
  line-height: 1;
  text-shadow: 0 2px 8px rgba(255, 107, 107, 0.4);
}

.countdown-label {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 4px;
  font-weight: 500;
}

.countdown-separator {
  font-size: 28px;
  color: rgba(255, 255, 255, 0.3);
  font-weight: 700;
  line-height: 1;
  animation: blink 1.5s infinite;
}

@keyframes blink {
  0%, 49%, 100% { opacity: 1; }
  50%, 99% { opacity: 0.3; }
}

.countdown-hint {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 4px;
}

/* 响应式 */
@media (max-width: 768px) {
  .offer-header {
    flex-direction: column;
    gap: var(--spacing-xs);
    text-align: center;
  }
  
  .offer-content {
    flex-direction: column;
    gap: var(--spacing-lg);
    text-align: center;
  }
  
  .offer-main {
    text-align: center;
  }
  
  .offer-discount {
    font-size: 28px;
  }
  
  .countdown-item {
    min-width: 60px;
    padding: 8px 10px;
  }
  
  .countdown-value {
    font-size: 28px;
  }
  
  .countdown-separator {
    font-size: 24px;
  }
}

/* 任务15: 购买后立即可用样式 */
.instant-activation {
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-md);
  background: rgba(81, 207, 102, 0.1);
  border-radius: var(--border-radius-md);
  border: 1px solid rgba(81, 207, 102, 0.3);
}

.instant-activation h4 {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--color-success-cyan);
  margin-bottom: var(--spacing-sm);
  text-align: center;
}

.activation-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.activation-features li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  padding: var(--spacing-xs);
}

.activation-features .icon {
  font-size: 18px;
}

/* 任务16: 信任背书样式 */
.trust-badges {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  flex-wrap: wrap;
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(81, 207, 102, 0.1);
  border-radius: 20px;
  border: 1px solid rgba(81, 207, 102, 0.3);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.trust-badge:hover {
  background: rgba(81, 207, 102, 0.2);
  transform: translateY(-2px);
}

.badge-icon {
  color: var(--color-success-cyan);
  font-size: 16px;
  font-weight: var(--font-weight-bold);
}

@media (max-width: 768px) {
  .trust-badges {
    flex-direction: column;
    align-items: center;
  }
  
  .trust-badge {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }
}


/* 产品展示图样式 */
.product-showcase-image {
  margin: var(--spacing-2xl) 0;
  padding: var(--spacing-xl);
  text-align: center;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.05) 0%, rgba(0, 102, 255, 0.05) 100%);
  border-radius: 20px;
  border: 1px solid rgba(0, 229, 255, 0.2);
}

.product-showcase-image img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-showcase-image img:hover {
  transform: translateY(-5px);
  box-shadow: 0 25px 70px rgba(0, 229, 255, 0.3);
}

@media (max-width: 768px) {
  .product-showcase-image {
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
  }
}