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

html { scroll-behavior: smooth; }

body {
  font-family: "Microsoft YaHei", "PingFang SC", "SimHei", sans-serif;
  background: #f7f9fa;
  color: #1a1a1a;
  font-size: 19px;
  line-height: 1.7;
}

/* ===== 固定导航栏 ===== */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #0a3d33;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  padding: 0 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
nav .nav-brand {
  color: #ffffff;
  font-size: 20px;
  font-weight: bold;
  padding: 14px 18px;
  letter-spacing: 1px;
}
nav a.nav-link {
  color: #cfe6e0;
  font-size: 18px;
  text-decoration: none;
  padding: 14px 18px;
  display: inline-block;
  transition: color 0.2s, background 0.2s;
}
nav a.nav-link:hover,
nav a.nav-link.active {
  color: #ffffff;
  background: #0a6e5c;
}

/* ===== 通用板块 ===== */
.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 56px 20px;
  scroll-margin-top: 60px;
}
.section-title {
  font-size: 32px;
  color: #0a3d33;
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: 2px;
}
.section-subtitle {
  font-size: 18px;
  color: #666666;
  text-align: center;
  margin-bottom: 36px;
}
.section-card {
  background: #ffffff;
  border: 2px solid #d5dde0;
  border-radius: 12px;
  padding: 36px 32px;
}

/* ===== 顶部标题区 ===== */
header {
  background: #ffffff;
  border-bottom: 3px solid #0a6e5c;
  text-align: center;
  padding: 48px 20px 40px;
}
header h1 {
  font-size: 40px;
  color: #0a3d33;
  letter-spacing: 2px;
  margin-bottom: 16px;
}
header .subtitle {
  font-size: 24px;
  color: #333333;
  margin-bottom: 20px;
}
header .trust-badge {
  display: inline-block;
  background: #0a6e5c;
  color: #ffffff;
  font-size: 22px;
  font-weight: bold;
  padding: 10px 36px;
  border-radius: 50px;
  letter-spacing: 3px;
}
header .trust-note {
  font-size: 18px;
  color: #555555;
  margin-top: 14px;
}

/* ===== 服务卡片区 ===== */
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 20px 24px;
}
.cards {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  justify-content: center;
}
.card {
  background: #ffffff;
  border: 2px solid #d5dde0;
  border-top: 6px solid #0a6e5c;
  border-radius: 12px;
  padding: 32px 28px;
  flex: 1 1 300px;
  max-width: 340px;
  text-align: center;
}
.card h2 {
  font-size: 26px;
  color: #0a3d33;
  margin-bottom: 8px;
}
.card .price {
  font-size: 30px;
  color: #c0392b;
  font-weight: bold;
  margin-bottom: 18px;
}
.card ul {
  list-style: none;
  text-align: left;
  margin-bottom: 26px;
}
.card ul li {
  padding: 7px 0 7px 32px;
  position: relative;
  font-size: 19px;
  border-bottom: 1px dashed #e2e8ea;
}
.card ul li:last-child { border-bottom: none; }
.card ul li::before {
  content: "✓";
  position: absolute;
  left: 6px;
  color: #0a6e5c;
  font-weight: bold;
}

/* ===== 大按钮 ===== */
.btn-book {
  display: block;
  width: 100%;
  background: #0a6e5c;
  color: #ffffff;
  font-size: 22px;
  font-weight: bold;
  border: none;
  border-radius: 10px;
  padding: 15px 0;
  cursor: pointer;
  letter-spacing: 4px;
  text-decoration: none;
  text-align: center;
  box-sizing: border-box;
}
.btn-book:hover { background: #085a4b; }

/* ===== 底部信任区 ===== */
footer {
  background: #ffffff;
  border-top: 3px solid #0a6e5c;
  text-align: center;
  padding: 44px 20px 30px;
  margin-top: 40px;
}
footer .trust-copy {
  font-size: 22px;
  color: #0a3d33;
  font-weight: bold;
  max-width: 640px;
  margin: 0 auto 30px;
}
.qr-img {
  width: 200px;
  height: 200px;
  object-fit: contain;
  border: 2px solid #d5dde0;
  border-radius: 8px;
  background: #ffffff;
  display: block;
  margin: 0 auto 10px;
}
.qr-tip { font-size: 18px; color: #555555; margin-bottom: 26px; }

/* ===== 按钮下方小字提示 ===== */
.btn-tip {
  font-size: 12px;
  color: #999999;
  text-align: center;
  margin-top: 8px;
}

/* ===== 首页特色亮点 ===== */
.features {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}
.feature-item {
  background: #ffffff;
  border: 2px solid #d5dde0;
  border-radius: 12px;
  padding: 26px 28px;
  flex: 1 1 280px;
  max-width: 340px;
  text-align: center;
}
.feature-item .feat-num {
  font-size: 34px;
  font-weight: bold;
  color: #0a6e5c;
  margin-bottom: 8px;
}
.feature-item h3 {
  font-size: 21px;
  color: #0a3d33;
  margin-bottom: 8px;
}
.feature-item p {
  font-size: 17px;
  color: #555555;
}

/* ===== 服务详情页 ===== */
.service-detail {
  background: #ffffff;
  border: 2px solid #d5dde0;
  border-radius: 12px;
  padding: 32px 34px;
  margin-bottom: 28px;
}
.service-detail h3 {
  font-size: 26px;
  color: #0a3d33;
  margin-bottom: 6px;
}
.service-detail .svc-price {
  font-size: 22px;
  color: #c0392b;
  font-weight: bold;
  margin-bottom: 16px;
}
.service-detail p {
  color: #444444;
  margin-bottom: 12px;
}
.service-detail .svc-flow {
  list-style: none;
  margin: 10px 0 16px;
}
.service-detail .svc-flow li {
  padding: 6px 0 6px 32px;
  position: relative;
  border-bottom: 1px dashed #e2e8ea;
}
.service-detail .svc-flow li:last-child { border-bottom: none; }
.service-detail .svc-flow li::before {
  content: "✓";
  position: absolute;
  left: 6px;
  color: #0a6e5c;
  font-weight: bold;
}
.svc-btn {
  display: inline-block;
  background: #0a6e5c;
  color: #ffffff;
  font-size: 20px;
  font-weight: bold;
  border-radius: 10px;
  padding: 12px 40px;
  text-decoration: none;
  letter-spacing: 3px;
}
.svc-btn:hover { background: #085a4b; }

/* ===== 关于我板块 ===== */
.about-grid {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  align-items: flex-start;
}
.about-main {
  flex: 2 1 480px;
  min-width: 300px;
}
.about-main p {
  margin-bottom: 16px;
  color: #333333;
}
.about-side {
  flex: 1 1 260px;
  min-width: 260px;
}
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}
.tag {
  background: #eef5f3;
  color: #0a6e5c;
  font-size: 16px;
  font-weight: bold;
  padding: 6px 16px;
  border-radius: 50px;
  border: 1px solid #b7d4cd;
}
.course-box {
  background: #fdf6ec;
  border: 2px solid #e8c98a;
  border-radius: 12px;
  padding: 20px 22px;
  margin-top: 8px;
}
.course-box h3 {
  font-size: 21px;
  color: #8a5a00;
  margin-bottom: 8px;
}
.course-box p {
  font-size: 17px;
  color: #5a4a2a;
  margin-bottom: 4px;
}

/* ===== 成功案例板块 ===== */
.case-grid {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}
.case-item {
  background: #ffffff;
  border: 2px solid #d5dde0;
  border-left: 6px solid #0a6e5c;
  border-radius: 12px;
  padding: 24px 26px;
  flex: 1 1 300px;
  max-width: 340px;
}
.case-item h3 {
  font-size: 20px;
  color: #0a3d33;
  margin-bottom: 8px;
}
.case-item .case-type {
  font-size: 14px;
  color: #ffffff;
  background: #0a6e5c;
  display: inline-block;
  padding: 2px 12px;
  border-radius: 50px;
  margin-bottom: 10px;
}
.case-item p {
  font-size: 17px;
  color: #444444;
}

/* ===== 联系我们板块 ===== */
.contact-wrap {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}
.contact-info {
  flex: 1 1 340px;
  max-width: 460px;
  text-align: left;
}
.contact-info h3 {
  font-size: 24px;
  color: #0a3d33;
  margin-bottom: 14px;
}
.contact-info ul {
  list-style: none;
}
.contact-info ul li {
  padding: 8px 0 8px 32px;
  position: relative;
  font-size: 19px;
  border-bottom: 1px dashed #e2e8ea;
}
.contact-info ul li:last-child { border-bottom: none; }
.contact-info ul li::before {
  content: "✓";
  position: absolute;
  left: 6px;
  color: #0a6e5c;
  font-weight: bold;
}
.contact-qr {
  flex: 0 0 auto;
  text-align: center;
}

/* ===== 首页联系引导条 ===== */
.cta-band {
  max-width: 1100px;
  margin: 0 auto 24px;
  padding: 0 20px;
}
.cta-inner {
  background: #0a3d33;
  border-radius: 14px;
  text-align: center;
  padding: 44px 24px;
}
.cta-inner h2 {
  color: #ffffff;
  font-size: 30px;
  margin-bottom: 12px;
  letter-spacing: 2px;
}
.cta-inner p {
  color: #cfe6e0;
  font-size: 19px;
  margin-bottom: 24px;
}
.cta-inner .btn-book {
  display: inline-block;
  width: auto;
  padding: 14px 52px;
}
.cta-inner .btn-secondary {
  display: inline-block;
  background: transparent;
  border: 2px solid #cfe6e0;
  color: #ffffff;
  font-size: 19px;
  border-radius: 10px;
  padding: 12px 36px;
  margin-left: 14px;
  text-decoration: none;
  letter-spacing: 2px;
}
.cta-inner .btn-secondary:hover { background: #0a6e5c; border-color: #0a6e5c; }

/* ===== 首页卡片链接 ===== */
.card-link {
  display: inline-block;
  margin-top: 16px;
  color: #0a6e5c;
  font-size: 17px;
  text-decoration: none;
  font-weight: bold;
}
.card-link:hover { text-decoration: underline; }

/* ===== 备案号 ===== */
.icp {
  font-size: 14px;
  color: #999999;
  margin-top: 26px;
}
.icp a {
  color: #999999;
  text-decoration: none;
}
.icp a:hover { color: #0a6e5c; }

/* ===== 页面主标题（子页面头部） ===== */
.page-header {
  background: #ffffff;
  border-bottom: 3px solid #0a6e5c;
  text-align: center;
  padding: 40px 20px 32px;
}
.page-header h1 {
  font-size: 34px;
  color: #0a3d33;
  letter-spacing: 2px;
  margin-bottom: 10px;
}
.page-header p {
  font-size: 20px;
  color: #555555;
}

@media (max-width: 640px) {
  header h1 { font-size: 30px; }
  header .subtitle { font-size: 20px; }
  .page-header h1 { font-size: 26px; }
  .card { max-width: 100%; }
  nav .nav-brand { width: 100%; text-align: center; padding-bottom: 0; }
  nav a.nav-link { font-size: 16px; padding: 10px 12px; }
  .section { padding: 40px 16px; }
  .section-title { font-size: 26px; }
  .section-card { padding: 26px 20px; }
  .about-grid { flex-direction: column; }
  .case-item { max-width: 100%; }
  .contact-info { max-width: 100%; }
  .service-detail { padding: 24px 20px; }
  .cta-inner h2 { font-size: 24px; }
  .cta-inner .btn-secondary { margin-left: 0; margin-top: 12px; }
}