:root {
  --primary-color: #F97316;
  --tag-background-color: linear-gradient(135deg, #f97316, #fb923c);
  --header-height: 60px;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

@font-face {
  font-family: 'Asap Symbol';
  src: url('https://photoeditorai.io/assets/fonts/woff2/Asap-Symbol.woff2') format('woff2'),
    url('https://photoeditorai.io/assets/fonts/woff/Asap-Symbol.woff asap-symbol.woff') format('woff'),
    url('https://photoeditorai.io/assets/fonts/ttf/Asap-Symbol.ttf') format('truetype');
  font-display: swap;
}

body {
  font-family: 'Asap Symbol', "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica", "Helvetica Neue", "BlinkMacSystemFont", sans-serif;
}

html,
body {
  margin: 0;
  padding: 0;
}

.container {
  overflow: hidden;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 1;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 3rem;
  position: relative;
}

/* Hero Section Styles */
.hero-inner {
  padding: 4rem 0;
  text-align: center;
}

.hero-title {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: #1a1a1a;
  font-weight: 700;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: #666;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-cta-button {
  background: linear-gradient(135deg, #f97316, #fb923c);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
  transition: all 0.3s ease;
}

.hero-cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
}

.hero-cta-button:active {
  transform: translateY(0);
}

/* Hero Section - 功能区背景美化 */
.hero {
  background:
    /* 主渐变背景 */
    linear-gradient(135deg,
      rgba(254, 243, 199, 0.4) 0%,
      rgba(251, 207, 232, 0.2) 25%,
      rgba(249, 168, 212, 0.15) 50%,
      rgba(249, 115, 22, 0.1) 100%),
    /* 底色 */
    linear-gradient(135deg, #fff9f0 0%, #fef3e2 100%);
  background-size: 100% 100%, 100% 100%, 50px 50px, 50px 50px, 100% 100%;
  background-position: 0 0, 0 0, -1px -1px, -1px -1px, 0 0;
  color: #333;
  position: relative;
  overflow: hidden;
  margin-top: var(--header-height);
  /* 添加微妙的阴影 */
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    inset 0 -1px 0 rgba(249, 115, 22, 0.05);
}

/* 装饰性几何形状 - 右上角光晕 */
.hero::before {
  content: '';
  position: absolute;
  top: 10%;
  right: 5%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle at 30% 30%,
      rgba(249, 115, 22, 0.15),
      rgba(249, 115, 22, 0.05) 40%,
      transparent 70%);
  border-radius: 50%;
  filter: blur(40px);
  z-index: 1;
}

/* 左下角装饰性圆形 */
.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle at 50% 50%,
      rgba(251, 207, 232, 0.3),
      rgba(249, 168, 212, 0.15) 40%,
      transparent 70%);
  border-radius: 50%;
  filter: blur(60px);
  z-index: 1;
}

.hero-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 2;
}

/* 落地页内链主题色 */
.landing .seo-link-style,
.landing a[href^="/"],
.landing a[href*="photoeditorai.io"] {
  color: var(--primary-color);
  text-decoration: underline;
}

/* How It Works Section */
.how-it-works {
  padding: 80px 0;
  position: relative;
  background-color: var(--tag-background-color);
}

.section-subtitle {
  text-align: center;
  font-size: 1.2rem;
  color: #666;
  margin-bottom: 4rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.steps-visual-container {
  max-width: 1600px;
  margin: 0 auto;
  border-radius: 20px;
  padding: 3rem;
}

.steps-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.visual-elements {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.how-it-works-image {
  width: 100%;
  max-width: 600px;
  height: auto;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.image-examples {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.example-image {
  width: 120px;
  height: 120px;
  border-radius: 20px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.day-scene {
  background: linear-gradient(135deg, #87CEEB, #98FB98);
}

.night-scene {
  background: linear-gradient(135deg, #2C3E50, #34495E);
}

.sun {
  width: 30px;
  height: 30px;
  background: #FFD700;
  border-radius: 50%;
  position: absolute;
  top: 15px;
  right: 15px;
}

.moon {
  width: 25px;
  height: 25px;
  background: #F5F5DC;
  border-radius: 50%;
  position: absolute;
  top: 15px;
  right: 15px;
}

.mountains {
  position: absolute;
  bottom: 30px;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(45deg, #228B22, #32CD32);
  clip-path: polygon(0% 100%, 30% 20%, 60% 60%, 100% 10%, 100% 100%);
}

.mountains-night {
  position: absolute;
  bottom: 30px;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(45deg, #1B4F72, #2E86AB);
  clip-path: polygon(0% 100%, 30% 20%, 60% 60%, 100% 10%, 100% 100%);
}

.ground {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 30px;
  background: linear-gradient(135deg, #DEB887, #F4A460);
}

.ground-night {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 30px;
  background: linear-gradient(135deg, #5D4E75, #8B7D6B);
}

.connection-line {
  display: flex;
  justify-content: space-between;
  width: 200px;
  position: relative;
}

.connection-line::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 15px;
  right: 15px;
  height: 3px;
  background: var(--primary-color);
  border-radius: 2px;
  transform: translateY(-50%);
}

.connection-dot {
  width: 30px;
  height: 30px;
  background: #2C3E50;
  border-radius: 50%;
  position: relative;
  z-index: 2;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 1.5rem;
  background: #fff;
  border-radius: 15px;
  transition: all 0.2s ease;
}

.step-item .step-number {
  width: 40px;
  height: 40px;
  background: var(--tag-background-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: bold;
  flex-shrink: 0;
}

.step-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: #1a1a1a;
  margin-top: 0;
}

.step-content p {
  color: #666;
  line-height: 1.6;
}

/* Gallery Section */
.gallery {
  padding: 60px 0 0;
  background: #fff;
  overflow: hidden;
}

.gallery-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 1rem;
}

.gallery-description {
  text-align: center;
  font-size: 1rem;
  color: #666;
  line-height: 1.6;
  max-width: 800px;
  margin: 0 auto 3rem;
}

.gallery-track-wrapper {
  width: 100%;
  overflow: hidden;
}

.gallery-track {
  display: flex;
  gap: 1rem;
  width: max-content;
  animation: galleryScroll 60s linear infinite;
}

.gallery-slide {
  flex-shrink: 0;
  height: 320px;
  border-radius: 12px;
  overflow: hidden;
}

.gallery-slide img {
  height: 100%;
  width: auto;
  display: block;
}

.gallery-cta {
  text-align: center;
  margin-top: 6rem;
}

.gallery-cta-button {
  background: linear-gradient(135deg, #f97316, #fb923c);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.gallery-cta-button:hover {
  transform: translateY(-2px);
}

.gallery-cta-button:active {
  transform: translateY(0);
}

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

@media (max-width: 768px) {
  .gallery-slide {
    width: 180px;
    height: 240px;
  }

  .gallery-title {
    font-size: 2rem;
  }
}

/* Features Section */
.features {
  padding: 80px 0;
  background: white;
  position: relative;
}

.features::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: radial-gradient(circle at 20% 50%, rgba(249, 115, 22, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(249, 115, 22, 0.03) 0%, transparent 50%);
  z-index: 1;
}

.image-text-section {
  display: flex;
  align-items: center;
  gap: 4rem;
  margin: 6rem 0;
  padding: 0 1rem;
}

.image-text-section.reverse {
  flex-direction: row-reverse;
}

.image-text-content {
  flex: 1;
  max-width: 500px;
}

.image-text-content h3 {
  font-size: 2.5rem;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.image-text-content p {
  font-size: 1.1rem;
  color: #666;
  line-height: 1.6;
}

.image-text-visual {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.feature-images {
  position: relative;
  width: 100%;
  max-width: 500px;
}

.feature-image {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
}

.image-comparison {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.image-comparison .feature-image {
  flex: 1;
}

.image-sequence {
  position: relative;
}

.image-sequence .feature-image:first-child {
  width: 200px;
  height: 200px;
  position: absolute;
  top: -50px;
  left: -50px;
  z-index: 2;
}

.image-sequence .feature-image:last-child {
  width: 300px;
  height: 250px;
  margin-left: 100px;
}

.connection-arrow {
  position: absolute;
  top: 50%;
  left: 120px;
  transform: translateY(-50%);
  z-index: 3;
  color: #F97316;
  font-size: 2rem;
}

.connection-text {
  position: absolute;
  top: 20px;
  left: 150px;
  background: white;
  padding: 0.5rem 1rem;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  font-size: 0.9rem;
  color: #333;
  max-width: 200px;
  z-index: 4;
  border: 2px solid #F97316;
}

/* AI Models Section */
.ai-models {
  padding: 80px 0;
  background: #fff;
  position: relative;
  overflow: hidden;
}

.ai-models-title {
  color: #1a1a1a;
}

.ai-models-description {
  text-align: center;
  font-size: 1rem;
  color: #666;
  line-height: 1.6;
  max-width: 700px;
  margin: 0 auto 3rem;
}

.models-layout {
  display: flex;
  gap: 3rem;
  align-items: flex-start;
}

.models-tabs {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex-shrink: 0;
  width: 200px;
}

.models-tab {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  background: transparent;
  border: 1.5px solid #e5e7eb;
  border-radius: 50px;
  color: #333;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
}

.models-tab:hover {
  border-color: #999;
  color: #1a1a1a;
}

.models-tab.active {
  border-color: var(--primary-color);
  color: #1a1a1a;
}

.models-tab-icon {
  width: 20px;
  height: 20px;
  object-fit: contain;
}

/* AI Models Panels */
.models-panels {
  flex: 1;
  min-width: 0;
}

.models-panel {
  display: none;
}

.models-panel.active {
  display: block;
}

.models-panel-title {
  font-size: 2rem;
  font-weight: 700;
  color: #1a1a1a;
  margin: 0 0 1rem;
}

.models-panel-desc {
  font-size: 1rem;
  color: #666;
  line-height: 1.6;
  margin: 0 0 2rem;
}

.models-panel-subtitle {
  font-size: 1.1rem;
  font-weight: 600;
  color: #333;
  margin: 0 0 1.25rem;
}

.sub-models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.sub-model-card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
}

.sub-model-card:hover {
  border-color: var(--primary-color);
}

.sub-model-card h4 {
  font-size: 1.15rem;
  font-weight: 600;
  color: #1a1a1a;
  margin: 0 0 0.75rem;
}

.sub-model-card p {
  font-size: 0.9rem;
  color: #666;
  line-height: 1.6;
  margin: 0;
  flex: 1;
}

.sub-model-arrow {
  display: block;
  text-align: right;
  color: #666;
  font-size: 1.2rem;
  margin-top: 1rem;
  transition: color 0.2s ease;
}

.sub-model-card:hover .sub-model-arrow {
  color: var(--primary-color);
}

@media (max-width: 768px) {
  .models-layout {
    flex-direction: column;
    gap: 2rem;
  }

  .models-tabs {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .models-tab {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
  }

  .sub-models-grid {
    grid-template-columns: 1fr;
  }
}

/* Use Cases Section */
.use-cases {
  padding: 80px 0;
  background: linear-gradient(45deg, #f8f9fa 25%, transparent 25%),
    linear-gradient(-45deg, #f8f9fa 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #f8f9fa 75%),
    linear-gradient(-45deg, transparent 75%, #f8f9fa 75%);
  background-size: 100% 100%;
  background-position: 0 0, 0 30px, 30px -30px, -30px 0px;
  position: relative;
}

.use-cases .container {
  position: relative;
  z-index: 2;
}

.use-cases-grid {
  overflow: visible;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.use-case {
  text-align: center;
  padding: 1rem;
  border-radius: 15px;
  transition: all 0.3s ease;
  position: relative;
  background: white;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.use-case-image {
  width: 100%;
}

.use-case h3 {
  font-weight: 600;
  margin-bottom: 1rem;
  color: #1a1a1a;
}

.use-case p {
  color: #666;
}

/* Testimonials Section */
.testimonials {
  padding: 80px 0;
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.05), rgba(254, 243, 199, 0.2));
  position: relative;
}

.testimonials::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: url("data:image/svg+xml,%3Csvg width='100' height='20' viewBox='0 0 100 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M21.184 20c.357-.13.72-.264 1.088-.402l1.768-.661C33.64 15.347 39.647 14 50 14c10.271 0 15.362 1.222 24.629 4.928.955.383 1.869.74 2.75 1.072h6.225c-2.51-.73-5.139-1.691-8.233-2.928C65.888 13.278 60.562 12 50 12c-10.626 0-16.855 1.397-26.66 5.063l-1.767.662c-2.475.923-4.66 1.674-6.724 2.275h6.335zm0-20C13.258 2.892 8.077 4 0 4V2c5.744 0 9.951-.574 14.85-2h6.334zM77.38 0C85.239 2.966 90.502 4 100 4V2c-6.842 0-11.386-.542-16.396-2h-6.225zM0 14c8.44 0 13.718-1.21 22.272-4.402l1.768-.661C33.64 5.347 39.647 4 50 4c10.271 0 15.362 1.222 24.629 4.928C84.112 12.722 89.438 14 100 14v-2c-10.271 0-15.362-1.222-24.629-4.928C65.888 3.278 60.562 2 50 2 39.374 2 33.145 3.397 23.34 7.063l-1.767.662C13.223 10.84 8.163 12 0 12v2z' fill='%23f97316' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E") repeat-x;
}

.testimonials-slider {
  display: flex;
  overflow: hidden;
  margin-top: 3rem;
}

.testimonial {
  min-width: 100%;
  background: white;
  padding: 3rem;
  border-radius: 20px;
  text-align: center;
  animation: slideTestimonial 12s infinite;
  border: 2px solid rgba(249, 115, 22, 0.1);
}

.testimonial-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--tag-background-color);
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2rem;
  font-weight: bold;
}

.testimonial-text {
  font-size: 1.2rem;
  font-style: italic;
  margin-bottom: 1rem;
  color: #666;
}

.testimonial-author {
  font-weight: 600;
  color: var(--primary-color);
}

/* FAQ Section */
.faq {
  padding: 80px 0;
  background: white;
  position: relative;
}

/* Why Use Section */
.why-use {
  padding: 80px 0;
  background: white;
  position: relative;
  overflow: hidden;
}

.why-use::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
}

.why-use .container {
  position: relative;
  z-index: 2;
}

.why-use .section-subtitle {
  text-align: center;
  font-size: 1.2rem;
  color: #666;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.why-use-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.why-use-item {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.why-use-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.1), rgba(251, 146, 60, 0.1));
  border-radius: 50%;
  margin: 0 auto 1.5rem;
}

.why-use-icon img {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.why-use-item h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 1rem;
}

.why-use-item p {
  color: #666;
  line-height: 1.6;
}

.why-use-cta {
  text-align: center;
  margin-top: 3rem;
  padding: 2rem 0;
}

.cta-button {
  background: linear-gradient(135deg, #f97316, #fb923c);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
  transition: all 0.3s ease;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
}

.cta-button:active {
  transform: translateY(0);
}

@media (max-width: 768px) {
  .why-use-grid {
    grid-template-columns: 1fr;
  }

  .why-use-item {
    text-align: center;
  }
}

/* Final CTA Section */
.final-cta {
  padding: 100px 0;
  background: rgba(249, 115, 22, 0.7);
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
  z-index: 1;
}

.final-cta .container {
  overflow: visible;
  position: relative;
  z-index: 2;
}

.final-cta-content {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.final-cta-title {
  font-size: 2.8rem;
  font-weight: 700;
  color: white;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.final-cta-description {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 3rem;
  line-height: 1.6;
}

.final-cta-button {
  background: white;
  color: var(--primary-color);
  border: none;
  padding: 1.2rem 2.5rem;
  border-radius: 50px;
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.final-cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
  background: #fef3e2;
}

.final-cta-button:active {
  transform: translateY(-1px);
}

@media (max-width: 768px) {
  .final-cta {
    padding: 80px 0;
  }

  .final-cta-title {
    font-size: 2.2rem;
  }

  .final-cta-description {
    font-size: 1.1rem;
  }

  .final-cta-button {
    padding: 1rem 2rem;
    font-size: 1.1rem;
  }
}

.faq::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(30deg, rgba(249, 115, 22, 0.02) 12%, transparent 12.5%, transparent 87%, rgba(249, 115, 22, 0.02) 87.5%, rgba(249, 115, 22, 0.02)),
    linear-gradient(150deg, rgba(249, 115, 22, 0.02) 12%, transparent 12.5%, transparent 87%, rgba(249, 115, 22, 0.02) 87.5%, rgba(249, 115, 22, 0.02)),
    linear-gradient(30deg, rgba(249, 115, 22, 0.02) 12%, transparent 12.5%, transparent 87%, rgba(249, 115, 22, 0.02) 87.5%, rgba(249, 115, 22, 0.02)),
    linear-gradient(150deg, rgba(249, 115, 22, 0.02) 12%, transparent 12.5%, transparent 87%, rgba(249, 115, 22, 0.02) 87.5%, rgba(249, 115, 22, 0.02));
  background-size: 80px 140px;
  z-index: 1;
}

.faq .container {
  position: relative;
  z-index: 2;
}

.faq-item {
  background: white;
  margin-bottom: 1rem;
  border-radius: 10px;
  overflow: hidden;
  transition: all 0.3s ease;
  border: 1px solid #e5e7eb;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.faq-item:hover {
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  border-color: rgba(249, 115, 22, 0.2);
}

.faq-question {
  padding: 1.5rem;
  background: white;
  color: #1a1a1a;
  cursor: pointer;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
}

.faq-question:hover {
  background: rgba(249, 115, 22, 0.05);
}

.faq-answer {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
  background: white;
  color: #666;
}

.faq-answer.active {
  padding: 1.5rem;
  max-height: 200px;
}

.faq-toggle {
  transition: transform 0.3s ease;
  color: var(--primary-color);
}

.faq-toggle.active {
  transform: rotate(180deg);
}

/* Animations */
@keyframes slideTestimonial {

  0%,
  30% {
    transform: translateX(0);
  }

  33%,
  63% {
    transform: translateX(-100%);
  }

  66%,
  96% {
    transform: translateX(-200%);
  }

  100% {
    transform: translateX(0);
  }
}

/* 回到顶部按钮样式 */
#back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, #f97316, #fb923c);
  color: white;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 9999;
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}

#back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
  background: linear-gradient(135deg, #fb923c, #f97316);
}

#back-to-top:active {
  transform: translateY(-1px);
}

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

#back-to-top svg {
  width: 20px;
  height: 20px;
}

@media (hover: none) {
  #back-to-top:hover {
    transform: none;
  }
}

@media (max-width: 1050px) {
  #back-to-top {
    bottom: 100px;
    right: 20px;
    width: 44px;
    height: 44px;
  }

  .steps-visual {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .step-item {
    padding: 1rem;
    gap: 1rem;
  }

  .steps-visual-container {
    padding: 0.5rem;
  }

  .image-examples {
    flex-direction: column;
    align-items: center;
  }

  .connection-line {
    width: 150px;
  }

  .image-text-section,
  .image-text-section.reverse {
    flex-direction: column;
    gap: 2rem;
  }

  .use-cases-grid {
    grid-template-columns: 1fr;
  }

  .section-title {
    font-size: 2rem;
  }

  .image-text-content h3 {
    font-size: 1.8rem;
  }
}