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

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  background-color: #f5f5f5;
  color: #333;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  opacity: 0.85;
}

.wrapper {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.header {
  background: rgba(255, 255, 255, 0.8);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand img {
  height: 56px;
}

.nav {
  display: flex;
  gap: 28px;
  font-size: 16px;
  color: #014d7a;
}

.nav a.active {
  color: #0ba0b5;
  font-weight: 600;
}

.hero {
  background: linear-gradient(0deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.92)),
    url("banner2.jpg") center/cover no-repeat;
  padding: 48px 0 56px;
}

.hero-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.hero-text {
  max-width: 420px;
}

.hero-title {
  font-size: 32px;
  font-weight: 700;
  color: #014d7a;
  margin-bottom: 12px;
}

.hero-text .tagline {
  font-size: 36px;
  font-weight: 700;
  color: #a22424;
  margin-bottom: 16px;
}

.hero-text .hotline {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  font-size: 20px;
  color: #a22424;
}

.hero-visual {
  flex: 1;
  display: flex;
  justify-content: center;
}

.hero-visual img {
  width: 100%;
  max-width: 380px;
  border-radius: 12px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
}

.main {
  background: #fff;
  padding: 56px 0 72px;
}

.section-title {
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  color: #014d7a;
  margin-bottom: 40px;
}

.content-block {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: flex-start;
}

.content-block img {
  flex: 1 1 320px;
  width: 100%;
  max-width: 380px;
  border-radius: 12px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

.content-block .text {
  flex: 2 1 360px;
  font-size: 18px;
  color: #444;
  white-space: pre-line;
}

.callout {
  font-size: 18px;
  color: #014d7a;
  margin-top: 16px;
  display: inline-block;
}

.footer {
  background: #2f2f2f;
  color: #fafafa;
  padding: 32px 0;
  font-size: 16px;
  line-height: 1.8;
}

.footer a {
  color: #fafafa;
}

@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    gap: 12px;
  }

  .nav {
    gap: 18px;
  }

  .hero-inner {
    flex-direction: column-reverse;
    text-align: center;
  }

  .hero-text {
    max-width: none;
  }

  .hero-text .tagline {
    font-size: 28px;
  }

  .hero-text .hotline {
    justify-content: center;
  }

  .content-block {
    flex-direction: column;
  }

  .content-block img,
  .content-block .text {
    max-width: none;
  }
}