/* ===== 基础容器 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== 修复：主题默认wrap为flex导致模块3-6横向排列，强制改为block ===== */
.scope-section .wrap,
.flow-section .wrap,
.faq-section .wrap,
.case3-section .wrap {
  display: block !important;
}

/* ===== 通用 ===== */
.sec-title {
  font-size: 28px; color: #1a3a5c; font-weight: 800;
  text-align: center; margin-bottom: 10px;
}
.sec-sub {
  font-size: 15px; color: #888; text-align: center; margin-bottom: 40px;
}
.grad-orange {
  background: linear-gradient(135deg, #e67e22, #d35400);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== 模块1: Banner（已居中） ===== */
.dz-banner {
  background: linear-gradient(135deg, #e8f0fe 0%, #d4e4f7 30%, #c8dcf2 60%, #b8d0ed 100%);
  padding: 60px 0 70px; position: relative; overflow: hidden;
}
.dz-banner .wrap { position: relative; z-index: 2; }
.dz-banner .banner-max {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}
.dz-banner .badge-pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(26,58,92,0.9); color: #fff;
  padding: 6px 20px; border-radius: 30px; font-size: 13px;
  letter-spacing: 2px; margin-bottom: 20px;
}
.dz-banner h1 {
  font-size: 38px; color: #1a3a5c; font-weight: 800;
  line-height: 1.3; margin-bottom: 15px;
}
.dz-banner p {
  font-size: 16px; color: #555; line-height: 2;
  max-width: 520px; margin: 0 auto;
}

/* ===== 模块2: 三大服务 ===== */
.service3-section { padding: 70px 0; background: #fff; }
.service3-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px;
}
.service3-card {
  background: #f8fbff; border-radius: 16px; padding: 35px 28px;
  border: 1px solid #eef2f7; text-align: center; transition: transform 0.3s;
}
.service3-card:hover { transform: translateY(-4px); }
.service3-card .s3-icon {
  width: 60px; height: 60px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 18px; font-size: 26px;
}
.service3-card .s3-icon.blue { background: linear-gradient(135deg, #e8f4fd, #d0e4f7); }
.service3-card .s3-icon.yellow { background: linear-gradient(135deg, #fef9e7, #f9e79f); }
.service3-card .s3-icon.green { background: linear-gradient(135deg, #e8f8e8, #c8e6c9); }
.service3-card h3 { font-size: 18px; color: #1a3a5c; margin-bottom: 10px; font-weight: 700; }
.service3-card p { font-size: 14px; color: #666; line-height: 1.9; margin: 0; }

/* ===== 模块3: 可定制范围（居中修复） ===== */
.scope-section { padding: 70px 0; background: linear-gradient(180deg, #f8fbff, #eef4fa); }
.scope-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 800px;   /* 限制宽度避免拉伸太宽 */
  margin: 0 auto;     /* 网格整体居中 */
  width: 100%;
}
.scope-item {
  display: flex; align-items: center; gap: 14px;
  background: #fff; padding: 18px 22px; border-radius: 12px;
  border: 1px solid #eef2f7; transition: all 0.3s;
}
.scope-item:hover { border-color: #e67e22; transform: translateY(-2px); }
.scope-item .si-icon { font-size: 22px; flex-shrink: 0; }
.scope-item .si-text { font-size: 15px; color: #1a3a5c; font-weight: 600; }
.scope-cta { text-align: center; margin-top: 35px; }

/* ===== 模块4: 定制流程图（修复箭头间距） ===== */
.flow-section { padding: 60px 0; background: #fff; }
.flow-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;   /* 改为center，箭头和步骤垂直对齐 */
  gap: 0;
}
.flow-step {
  width: 160px;          /* 固定宽度替代flex:1+max-width */
  text-align: center;
  padding: 0 10px;
  margin-bottom: 10px;
}
.flow-step .fs-circle {
  width: 68px; height: 68px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px; font-size: 30px; color: #fff;
  box-shadow: 0 4px 14px rgba(26,58,92,0.25);
}
.flow-step .fs-circle.blue { background: linear-gradient(135deg, #1a3a5c, #2c5f8a); }
.flow-step .fs-circle.orange { background: linear-gradient(135deg, #e67e22, #d35400); box-shadow: 0 4px 14px rgba(230,126,34,0.3); }
.flow-step .fs-num {
  display: inline-block; background: #e67e22; color: #fff;
  font-size: 12px; font-weight: 700; padding: 2px 14px;
  border-radius: 20px; margin-bottom: 8px;
}
.flow-step h4 { font-size: 16px; color: #1a3a5c; font-weight: 700; margin: 0 0 6px; }
.flow-step p { font-size: 13px; color: #777; line-height: 1.6; margin: 0; }
.flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 6px 0 6px;          /* 去掉底部大padding */
  color: #e67e22;
  font-size: 22px;
  font-weight: 700;
  height: 68px;                  /* 与圆形等高 */
  margin-bottom: 10px;           /* 与step底部对齐 */
}
.flow-cta { text-align: center; margin-top: 30px; }

/* ===== 模块5: FAQ（标题居中修复） ===== */
.faq-section { padding: 60px 0; background: linear-gradient(180deg, #f8fbff, #eef4fa); }
.faq-section .faq-header { text-align: center; }
.faq-section .faq-header .sec-title { margin-bottom: 8px; }
.faq-section .faq-header .sec-sub { margin-bottom: 35px; }
.faq-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: #fff; border-radius: 14px; border: 1px solid #e8edf4;
  overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.faq-item summary {
  list-style: none; padding: 18px 24px; cursor: pointer;
  display: flex; align-items: center; gap: 12px;
  font-size: 16px; color: #1a3a5c; font-weight: 600; user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item .faq-icon {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; flex-shrink: 0;
}
.faq-item .faq-icon.i1 { background: linear-gradient(135deg, #e8f4fd, #d0e4f7); }
.faq-item .faq-icon.i2 { background: linear-gradient(135deg, #fef9e7, #f9e79f); }
.faq-item .faq-icon.i3 { background: linear-gradient(135deg, #e8f8e8, #c8e6c9); }
.faq-item .faq-icon.i4 { background: linear-gradient(135deg, #fce4ec, #f8bbd0); }
.faq-item .faq-icon.i5 { background: linear-gradient(135deg, #e0f7fa, #b2ebf2); }
.faq-item .faq-icon.i6 { background: linear-gradient(135deg, #ede7f6, #d1c4e9); }
.faq-item .faq-title { flex: 1; }
.faq-item .faq-arrow {
  color: #e67e22; font-size: 18px; transition: transform 0.3s; flex-shrink: 0;
}
.faq-item[open] .faq-arrow { transform: rotate(180deg); }
.faq-item .faq-body {
  padding: 0 24px 18px 68px;
  font-size: 14px; color: #666; line-height: 1.8;
  border-top: 1px solid #f0f3f8;
}
.faq-cta { text-align: center; margin-top: 35px; }

/* ===== 模块6: 行业案例（标题居中修复） ===== */
.case3-section { padding: 60px 0; background: linear-gradient(135deg, #f8fbff, #eef4fa); }
.case3-section .case3-header { text-align: center; }
.case3-section .case3-header .sec-title { margin-bottom: 8px; }
.case3-section .case3-header .sec-sub { margin-bottom: 35px; }
.case3-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px;
}
.case3-card {
  background: #fff; border-radius: 16px; overflow: hidden;
  border: 1px solid #eef2f7; box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  transition: all 0.3s;
}
.case3-card:hover { transform: translateY(-4px); box-shadow: 0 8px 28px rgba(0,0,0,0.1); }
.case3-card .c3-body { padding: 35px 28px 25px; text-align: center; }
.case3-card .c3-icon {
  width: 70px; height: 70px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 18px; font-size: 34px; color: #fff;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.case3-card .c3-icon.red { background: linear-gradient(135deg, #ff6b35, #e65100); box-shadow: 0 4px 12px rgba(230,81,0,0.25); }
.case3-card .c3-icon.blue { background: linear-gradient(135deg, #1a3a5c, #2c5f8a); box-shadow: 0 4px 12px rgba(26,58,92,0.25); }
.case3-card .c3-icon.green { background: linear-gradient(135deg, #2e7d32, #1b5e20); box-shadow: 0 4px 12px rgba(27,94,32,0.25); }
.case3-card h3 { font-size: 18px; color: #1a3a5c; font-weight: 700; margin-bottom: 10px; }
.case3-card .c3-text {
  font-size: 14px; color: #666; line-height: 1.8; margin: 0; text-align: left;
}
.case3-card .c3-foot {
  background: #f8fbff; padding: 14px 28px;
  border-top: 1px solid #eef2f7; text-align: center;
}
.case3-card .c3-foot a { color: #e67e22; font-size: 14px; font-weight: 600; text-decoration: none; }
.case3-cta { text-align: center; margin-top: 40px; }

/* ===== 通用按钮 ===== */
.btn-orange {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, #e67e22, #d35400); color: #fff;
  padding: 14px 48px; border-radius: 30px; font-size: 16px;
  text-decoration: none; font-weight: 600;
  box-shadow: 0 6px 20px rgba(230,126,34,0.35);
  transition: all 0.3s;
}
.btn-orange:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(230,126,34,0.45); }
.btn-orange.sm { padding: 12px 40px; font-size: 15px; }

/* ===== 响应式 ===== */
@media (max-width: 991px) {
  .dz-banner h1 { font-size: 30px; }
  .service3-grid { grid-template-columns: 1fr; }
  .case3-grid { grid-template-columns: 1fr; }
  .scope-grid { max-width: 100%; }
  .flow-step { width: 130px; }
  .flow-arrow { padding: 0 4px; }
}
@media (max-width: 767px) {
  .dz-banner { padding: 40px 0 50px; }
  .dz-banner h1 { font-size: 24px; }
  .sec-title { font-size: 22px; }
  .service3-grid { grid-template-columns: 1fr; gap: 16px; }
  .scope-grid { grid-template-columns: 1fr; max-width: 100%; }
  .case3-grid { grid-template-columns: 1fr; }
  .flow-row { flex-direction: column; align-items: center; }
  .flow-step { width: 240px; }
  .flow-arrow { padding: 4px 0; transform: rotate(90deg); height: auto; }
  .faq-item summary { padding: 14px 16px; font-size: 14px; }
  .faq-item .faq-body { padding: 0 16px 14px 60px; font-size: 13px; }
  .btn-orange { padding: 12px 32px; font-size: 14px; }
  .case3-card .c3-body { padding: 28px 20px 20px; }
}