/* 全局样式 */
:root {
  --primary-color: #FF6B6B;
  --secondary-color: #4ECDC4;
  --accent-color: #FFD166;
  --text-color: #292F36;
  --light-text: #6C757D;
  --background-color: #FFFFFF;
  --light-background: #F8F9FA;
  --border-color: #E9ECEF;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --border-radius: 12px;
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  z-index: 1000;
  padding: 1rem 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo h1 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

nav a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: var(--transition);
}

nav a:hover {
  color: var(--primary-color);
}

.cta-button {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.cta-button:hover {
  background-color: var(--secondary-color);
  transform: translateY(-2px);
}

/* 英雄区域 */
.hero {
  background: linear-gradient(135deg, #FF6B6B 0%, #4ECDC4 100%);
  color: white;
  padding: 120px 0 80px;
  text-align: center;
  margin-top: 70px;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero-content p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.primary-button {
  background-color: white;
  color: var(--primary-color);
  border: none;
  padding: 1rem 2rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1rem;
}

.primary-button:hover {
  background-color: var(--light-background);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.secondary-button {
  background-color: transparent;
  color: white;
  border: 2px solid white;
  padding: 1rem 2rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1rem;
}

.secondary-button:hover {
  background-color: white;
  color: var(--primary-color);
  transform: translateY(-2px);
}

/* 服务区域 */
.services {
  padding: 100px 0;
  background-color: var(--light-background);
}

.services h2 {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
}

.section-subtitle {
  text-align: center;
  color: var(--light-text);
  font-size: 1.125rem;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.service-card {
  background-color: white;
  padding: 2.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  margin-bottom: 1.5rem;
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.service-card p {
  color: var(--light-text);
  line-height: 1.6;
}

/* 作品展示 */
.portfolio {
  padding: 100px 0;
}

.portfolio h2 {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.portfolio-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: var(--transition);
}

.portfolio-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.portfolio-item img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: var(--transition);
}

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

.portfolio-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  color: white;
  padding: 2rem;
  transform: translateY(100%);
  transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
  transform: translateY(0);
}

.portfolio-overlay h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.portfolio-overlay p {
  opacity: 0.8;
}

.portfolio .primary-button {
  display: block;
  margin: 3rem auto 0;
  width: fit-content;
}

/* 关于我们 */
.about {
  padding: 100px 0;
  background-color: var(--light-background);
}

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

.about-text h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.about-text p {
  margin-bottom: 1.5rem;
  line-height: 1.6;
  color: var(--text-color);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 2rem;
}

.stat-item {
  text-align: center;
  padding: 1.5rem;
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.stat-item h3 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.stat-item p {
  color: var(--light-text);
  margin: 0;
}

.about-image img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
}

/* 客户评价 */
.testimonials {
  padding: 100px 0;
}

.testimonials h2 {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.testimonial-card {
  background-color: white;
  padding: 2.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.testimonial-card p {
  font-style: italic;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.testimonial-author h4 {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.testimonial-author p {
  font-style: normal;
  color: var(--light-text);
  margin: 0;
}

/* 联系我们 */
.contact {
  padding: 100px 0;
  background-color: var(--light-background);
}

.contact h2 {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 3rem;
}

.contact-form {
  background-color: white;
  padding: 2.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background-color: white;
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.info-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.info-item svg {
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.info-item h4 {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.info-item p {
  color: var(--light-text);
  margin: 0;
}

/* 页脚 */
.footer {
  background-color: var(--text-color);
  color: white;
  padding: 60px 0 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: white;
}

.footer-logo p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 1.5rem;
}

.footer-links h4 {
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: white;
}

.footer-contact h4 {
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.footer-contact p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0.75rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .navbar nav {
    display: none;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .services-grid,
  .portfolio-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 992px) {
  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}