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

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: #333;
  background: #f4f5f7;
  line-height: 1.75;
  font-size: 15px;
}

a {
  color: #1e5a9e;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.header {
  background: #fff;
  border-bottom: 1px solid #e6e8eb;
}

.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  height: 66px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  color: #1b3a5c;
  font-size: 17px;
  font-weight: 600;
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
}

.nav a {
  margin-left: 28px;
  color: #444;
  font-size: 15px;
  text-decoration: none;
}

.nav a:hover,
.nav a.active {
  color: #1e5a9e;
}

.banner {
  background: #1b3a5c;
  color: #fff;
  text-align: center;
  padding: 48px 20px;
}

.banner h1 {
  font-size: 26px;
  font-weight: 600;
  margin-bottom: 10px;
}

.banner p {
  font-size: 15px;
  color: #d5deea;
}

.main {
  max-width: 1080px;
  margin: 24px auto 48px;
  padding: 0 20px;
}

.card {
  background: #fff;
  border: 1px solid #e7e9ed;
  padding: 28px 32px;
  margin-bottom: 20px;
}

.card h2 {
  font-size: 20px;
  color: #1b3a5c;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid #eef0f3;
}

.card h3 {
  font-size: 16px;
  color: #1b3a5c;
  margin: 20px 0 8px;
}

.card p {
  margin-bottom: 12px;
  color: #444;
}

.card ul {
  margin: 8px 0 12px 22px;
  color: #444;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature {
  background: #fff;
  border: 1px solid #e7e9ed;
  padding: 22px 20px;
}

.feature h3 {
  font-size: 16px;
  color: #1b3a5c;
  margin-bottom: 8px;
}

.feature p {
  color: #555;
  font-size: 14px;
}

.content-img {
  display: block;
  width: 100%;
  height: 280px;
  object-fit: cover;
  margin: 16px 0 0;
}

.news-item {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid #eef0f3;
}

.news-item:last-child {
  border-bottom: none;
}

.news-item h3 {
  font-size: 16px;
  margin: 0 0 6px;
}

.news-item h3 a {
  color: #222;
  text-decoration: none;
}

.news-item h3 a:hover {
  color: #1e5a9e;
}

.news-meta {
  color: #888;
  font-size: 13px;
}

.price {
  color: #b42318;
  font-weight: 600;
  white-space: nowrap;
  font-size: 15px;
}

.article-meta {
  color: #888;
  font-size: 13px;
  margin-bottom: 18px;
}

.pay-box {
  margin-top: 28px;
  padding: 24px;
  background: #f8f9fb;
  border: 1px solid #e7e9ed;
  text-align: center;
}

.pay-box .price-lg {
  color: #b42318;
  font-size: 22px;
  font-weight: 600;
  margin: 8px 0 16px;
}

.qr-img {
  width: 180px;
  height: 180px;
  object-fit: contain;
  display: block;
  margin: 0 auto 12px;
  background: #fff;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
}

.info-table th,
.info-table td {
  border: 1px solid #e7e9ed;
  padding: 10px 14px;
  text-align: left;
}

.info-table th {
  width: 160px;
  background: #f6f8fa;
  color: #555;
  font-weight: 500;
}

.footer {
  background: #2c3e50;
  color: #c5cdd6;
  text-align: center;
  padding: 22px 16px;
  font-size: 13px;
  line-height: 1.8;
}

.footer a {
  color: #c5cdd6;
}

@media (max-width: 768px) {
  .header-inner {
    height: auto;
    padding: 14px 16px;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .nav a {
    margin-left: 0;
    margin-right: 16px;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .news-item {
    flex-direction: column;
    gap: 8px;
  }

  .card {
    padding: 20px 16px;
  }
}