/* 批量文件处理工具 - 样式表 */
:root {
  --primary-color: #0078D7;
  --secondary-color: #00a0dc;
  --accent-color: #ff4081;
  --text-color: #333333;
  --light-text: #777777;
  --light-bg: #f5f5f5;
  --card-bg: #ffffff;
  --header-bg: #0078D7;
  --footer-bg: #333333;
  --border-radius: 8px;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Segoe UI', 'Microsoft YaHei', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--light-bg);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--secondary-color);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background-color: var(--header-bg);
  color: white;
  padding: 20px 0;
  position: relative;
}

.hero {
  padding: 60px 0;
  text-align: center;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 30px;
}

.btn {
  display: inline-block;
  background-color: var(--accent-color);
  color: white;
  padding: 12px 24px;
  border-radius: var(--border-radius);
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: var(--transition);
}

.btn:hover {
  background-color: #e91e63;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
  color: white;
}

.features {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
  position: relative;
}

.section-title h2 {
  display: inline-block;
  font-size: 2rem;
  position: relative;
  z-index: 1;
  padding: 0 20px;
  background-color: var(--light-bg);
}

.section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  height: 2px;
  width: 300px;
  background-color: var(--primary-color);
  z-index: 0;
}

.feature-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.feature-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.feature-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.feature-content {
  padding: 25px;
}

.feature-content h3 {
  color: var(--primary-color);
  margin-bottom: 15px;
  font-size: 1.3rem;
}

.feature-content p {
  color: var(--light-text);
  margin-bottom: 15px;
}

.testimonials {
  background-color: white;
  padding: 80px 0;
}

.testimonial-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.testimonial-card {
  background-color: var(--light-bg);
  padding: 25px;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.cta {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  text-align: center;
  padding: 80px 0;
}

.cta h2 {
  font-size: 2.2rem;
  margin-bottom: 20px;
}

.cta p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 30px;
}

footer {
  background-color: var(--footer-bg);
  color: white;
  padding: 40px 0;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

.footer-links a {
  color: white;
  margin: 0 15px;
}

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

.copyright {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

/* Responsive design */
@media (max-width: 768px) {
  .feature-cards {
    grid-template-columns: 1fr;
  }
  
  .testimonial-cards {
    grid-template-columns: 1fr;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .section-title h2 {
    font-size: 1.8rem;
  }
  
  .section-title::after {
    width: 200px;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 40px 0;
  }
  
  .hero h1 {
    font-size: 1.8rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
  
  .features, .testimonials, .cta {
    padding: 60px 0;
  }
}

/* 功能图标样式 */
.feature-icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  text-align: center;
}

/* 功能列表样式 */
.feature-list {
  list-style-type: none;
  margin: 20px 0;
}

.feature-list li {
  margin-bottom: 10px;
  padding-left: 25px;
  position: relative;
}

.feature-list li::before {
  content: '✓';
  color: var(--primary-color);
  position: absolute;
  left: 0;
  font-weight: bold;
}

/* 系统要求表格 */
.system-req {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}

.system-req th, .system-req td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid #ddd;
}

.system-req th {
  background-color: var(--primary-color);
  color: white;
}

.system-req tr:nth-child(even) {
  background-color: #f2f2f2;
}

/* 导航栏 */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: white;
}

.nav-links {
  display: flex;
}

.nav-links a {
  color: white;
  margin-left: 20px;
}

.mobile-menu {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu {
    display: block;
  }
  
  .nav-active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--header-bg);
    padding: 20px;
    z-index: 10;
  }
  
  .nav-active a {
    margin: 10px 0;
  }
}

/* 详情页面样式 */
.feature-detail {
  padding: 60px 0;
}

.feature-header {
  text-align: center;
  margin-bottom: 50px;
  padding: 30px 0;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  border-radius: var(--border-radius);
}

.feature-header h1 {
  font-size: 2.2rem;
  margin-bottom: 15px;
}

.feature-header p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 25px;
}

.feature-overview {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 40px;
  margin-bottom: 40px;
  box-shadow: var(--box-shadow);
}

.feature-overview h2 {
  color: var(--primary-color);
  margin-bottom: 20px;
  font-size: 1.8rem;
  position: relative;
  display: inline-block;
}

.feature-overview h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 3px;
  background-color: var(--accent-color);
}

.feature-overview p {
  margin-bottom: 30px;
  font-size: 1.1rem;
  line-height: 1.7;
}

.key-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.key-feature {
  background-color: var(--light-bg);
  border-radius: var(--border-radius);
  padding: 25px;
  text-align: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.key-feature:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
}

.key-feature i {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 15px;
  display: block;
}

.key-feature h3 {
  color: var(--primary-color);
  margin-bottom: 12px;
  font-size: 1.3rem;
}

.key-feature p {
  color: var(--light-text);
  margin-bottom: 0;
  font-size: 1rem;
}

.feature-usage {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 40px;
  margin-bottom: 40px;
  box-shadow: var(--box-shadow);
}

.feature-usage h2 {
  color: var(--primary-color);
  margin-bottom: 30px;
  font-size: 1.8rem;
  position: relative;
  display: inline-block;
}

.feature-usage h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 3px;
  background-color: var(--accent-color);
}

.usage-step {
  margin-bottom: 40px;
  padding-bottom: 30px;
  border-bottom: 1px solid #eee;
}

.usage-step:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.usage-step h3 {
  color: var(--primary-color);
  margin-bottom: 15px;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
}

.usage-step p {
  margin-bottom: 20px;
  color: var(--light-text);
  font-size: 1.1rem;
}

.image-container {
  margin: 25px 0;
  text-align: center;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
}

.image-container img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

.step-instructions ol {
  padding-left: 25px;
  margin-bottom: 0;
}

.step-instructions li {
  margin-bottom: 10px;
}

.step-instructions ul {
  padding-left: 20px;
  margin: 10px 0;
}

.usage-tips {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 40px;
  margin-bottom: 40px;
  box-shadow: var(--box-shadow);
}

.usage-tips h2 {
  color: var(--primary-color);
  margin-bottom: 20px;
  font-size: 1.8rem;
  position: relative;
  display: inline-block;
}

.usage-tips h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 3px;
  background-color: var(--accent-color);
}

.usage-tips ul {
  list-style-type: none;
}

.usage-tips li {
  margin-bottom: 15px;
  position: relative;
  padding-left: 25px;
  line-height: 1.6;
}

.usage-tips li::before {
  content: '✓';
  color: var(--primary-color);
  position: absolute;
  left: 0;
  font-weight: bold;
}

.usage-tips strong {
  color: var(--primary-color);
}

.cta-section {
  background-color: var(--primary-color);
  color: white;
  text-align: center;
  padding: 40px;
  border-radius: var(--border-radius);
  margin-bottom: 20px;
}

.cta-section h2 {
  font-size: 1.8rem;
  margin-bottom: 15px;
}

.cta-section p {
  margin-bottom: 20px;
  font-size: 1.1rem;
}

.feature-link {
  display: inline-block;
  color: var(--primary-color);
  font-weight: bold;
  margin-top: 10px;
  transition: var(--transition);
}

.feature-link:hover {
  color: var(--accent-color);
  text-decoration: underline;
}

@media (max-width: 768px) {
  .key-features {
    grid-template-columns: 1fr;
  }
  
  .feature-overview, 
  .feature-usage, 
  .usage-tips {
    padding: 25px;
  }
  
  .feature-header {
    padding: 20px 0;
  }
  
  .feature-header h1 {
    font-size: 1.8rem;
  }
  
  .feature-header p {
    font-size: 1rem;
  }
}