/* 基础样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  overflow-x: hidden;
}

body {
  font-family: 'Segoe UI', sans-serif;
  line-height: 1.6;
}

/* 容器样式 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 导航栏 */
.navbar {
  background: #fff;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  padding: 1rem 0;
}

.logo {
  color: #2a5db0;
  font-size: 1.8rem;
}

.logo-color {
  color: #2a5db0;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: #333;
  text-decoration: none;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: #2a5db0;
}

/* 首屏大图 */
.hero {
  background: linear-gradient(135deg, #2a5db0 0%, #1a3a6b 100%);
  /* height: 30vh; */
  display: flex;
  align-items: center;
  color: white;
  padding: 0 50px;
  /* text-align: center; */
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100vw;
  /* justify-content: center */
}

.hero-content h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero-content p,
.hero-content h2 {
  align-self: flex-start;
}

.hero-content h3 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  align-self: flex-end;
}

/* 下载区 */
.download-section {
  padding: 4rem 0;
}

.download-content {
  display: flex;
  gap: 3rem;
  align-items: center;
  justify-content: center;
}

.qr-code img {
  width: 150px;
  height: 150px;
  border: 1px solid #ddd;
  padding: 10px;
}

.download-options {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.download-btn,
.play-store-btn {
  padding: 12px 30px;
  border-radius: 5px;
  text-decoration: none;
  text-align: center;
}

.download-btn {
  background: #bb53d4;
  color: white;
}

.play-store-btn {
  border: 2px solid #2a5db0;
  color: #2a5db0;
}

/* 产品特色 */
.features {
  padding: 4rem 0;
  background: #f8f9fa;
}

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

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.product-container {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 2rem;
  margin: 2rem 0;
}

.product-sidebar {
  background: #f8f9fa;
  padding: 1.5rem;
  border-radius: 8px;
}

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

.category-list a {
  display: block;
  padding: 0.8rem;
  color: #2a5db0;
  text-decoration: none;
}

.product-main-img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: 8px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.product-image {
  height: 180px;
  background: #eee;
  border-radius: 6px;
  margin-bottom: 1rem;
}

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

  .download-content {
    flex-direction: column;
  }
} */


.image-list {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;

  img {
    width: 15vw;
  }
}

.image-banner {
  width: 100%;
  padding: 30px 10vw;
  box-sizing: border-box;

  img {
    width: 100%;
    margin-top: 5rem;
  }
}

.introduction {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1.5rem;
  line-height: 1.8;
}

.introduction-row {
  margin-bottom: 1.5rem;
  font-size: 1rem;
  color: #444;
}

.introduction-row.button {
  font-size: 2rem;
  text-align: center;
  font-weight: 800;
}

.introduction-row:last-child {
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .introduction {
    margin: 1.5rem auto;
    padding: 0 1rem;
  }

  .introduction-row {
    font-size: 0.9rem;
    margin-bottom: 1.2rem;
  }
}