/* ��臀��桁� */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f5f5f5;
  margin: 0;
  padding: 0;
}

/* 絎劫���桁� */
.container {
  width: 80%;
  margin: 0 auto;
  padding: 40px 0;
}

/* 紊顔��/絲取����垸� */
header {
  background: url('img/header.jpg') no-repeat center top/100% auto;
  width: 96%;
  height: 100%;
  margin: 5px auto;
  padding-top: 54%;
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

nav {
  background-color: rgba(0, 0, 0, 0.7);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 10px 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0;
}

.logo {
  font-size: 32px;
  font-weight: 700;
  color: white;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.6);
  letter-spacing: 1px;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.nav-links {
  list-style: none;
  display: flex;
}

.nav-links li {
  margin-left: 35px;
}

.nav-links a {
  color: white;
  text-decoration: none;
  font-size: 18px;
  font-weight: 500;
  transition: all 0.3s ease;
  padding: 8px 12px;
  border-radius: 4px;
}

.nav-links a:hover {
  color: #4CAF50;
  background-color: rgba(255, 255, 255, 0.1);
}

/* 移动端菜单：纯 CSS 横线，避免 Unicode 图标在部分字体下乱码 */
.nav-menu-toggle {
  flex-shrink: 0;
  box-sizing: border-box;
  width: 28px;
  height: 22px;
  padding: 0;
  margin: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
  align-items: stretch;
}

.nav-menu-toggle-bar {
  display: block;
  height: 3px;
  width: 100%;
  background-color: #fff;
  border-radius: 1px;
}





/* 薤�蕁球��絎劫�阪���桁� */
.home-section {
  background-color: white;
  width: 96%;
  max-width: 1200px;
  margin: 20px auto;
  padding: 60px;
  position: relative;
  z-index: 10;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.home-section h2 {
  text-align: center;
  margin-bottom: 40px;
  font-size: 36px;
  color: #333;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

.features {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  max-width: 1200px;
  margin: 0 auto;
}

.feature-item {
  flex: 1;
  min-width: 300px;
  background-color: white;
  padding: 20px;
  margin: 20px;
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid #f0f0f0;
}

.feature-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  border-color: #4CAF50;
}

.feature-item h3 {
  margin-bottom: 20px;
  color: #4CAF50;
  font-size: 24px;
}

.feature-item p {
  font-size: 16px;
  line-height: 1.8;
  color: #666;
}




footer {
  background: url('img/footer.jpg') no-repeat center top/100% auto;
  width: 96%;
  height: 100%;
  margin: 20px auto 0;
  padding-top: 54%;
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.icp-info {
  text-align: center;
  padding: 15px 0;
  background-color: #222;
  color: white;
  font-size: 14px;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.icp-info p {
  margin: 0;
  letter-spacing: 1px;
}

.icp-info .icp-company {
  margin-bottom: 6px;
}

.icp-info .icp-sep {
  margin: 0 0.35em;
  opacity: 0.7;
}

.icp-info a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.icp-info a:hover {
  opacity: 0.9;
}

@media (max-width: 768px) {
  nav .container {
    width: 100%;
    max-width: 100%;
    flex-wrap: wrap;
    row-gap: 10px;
    padding-left: 16px;
    padding-right: 16px;
    align-items: center;
  }

  .logo {
    order: 1;
    flex: 1;
    min-width: 0;
    font-size: clamp(17px, 4.5vw, 24px);
    letter-spacing: 0;
    line-height: 1.2;
  }

  .nav-menu-toggle {
    order: 2;
    flex-shrink: 0;
    -webkit-tap-highlight-color: transparent;
  }

  .nav-links {
    order: 3;
    flex-basis: 100%;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding-bottom: 4px;
  }

  .nav-links li {
    margin-left: 0;
    text-align: center;
  }

  .nav-links a {
    display: block;
    font-size: 16px;
    padding: 10px 12px;
  }

  .container {
    width: 92%;
    padding: 24px 0;
  }

  header,
  footer {
    width: 100%;
    margin-left: 0;
    margin-right: 0;
    border-radius: 0;
  }

  header {
    margin-top: 0;
  }

  .home-section {
    width: 100%;
    margin: 12px 0;
    padding: 28px 16px;
    border-radius: 0;
  }

  .home-section h2 {
    font-size: 24px;
    margin-bottom: 24px;
  }

  .features {
    flex-direction: column;
  }

  .feature-item {
    flex: 1 1 auto;
    min-width: 0;
    width: 100%;
    margin: 10px 0;
    padding: 16px;
  }

  .feature-item h3 {
    font-size: 20px;
  }

  .feature-item p {
    font-size: 15px;
  }

  .icp-info {
    font-size: 12px;
    padding: 14px 12px;
    line-height: 1.5;
  }

  .icp-info .icp-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 4px 0;
  }
}