/* ==========================================================================
   Service Parent CSS v3 — 参考 cqjskj.com 落地页风格
   配色：科技蓝 #1677ff + 深蓝 #0a2540 + 白底 + 浅灰交替
   ========================================================================== */

.service-parent {
  --sp-blue: #1677ff;
  --sp-blue-dark: #0a2540;
  --sp-blue-deep: #0d2d5a;
  --sp-orange: #ff5a1f;
  --sp-text: #1a2b4a;
  --sp-text-sub: #5b6b7f;
  --sp-bg-soft: #f5f8fd;
  --sp-border: #e8eef7;
  --sp-radius: 16px;
  --sp-container: 1440px;
  --sp-shadow: 0 10px 30px rgba(10, 37, 64, .08);
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--sp-text);
}

.service-parent *,
.service-parent *::before,
.service-parent *::after { box-sizing: border-box; }

.service-parent h1,
.service-parent h2,
.service-parent h3,
.service-parent h4 {
  margin: 0 0 12px;
  line-height: 1.3;
  font-weight: 700;
}
.service-parent p { margin: 0 0 12px; }
.service-parent a { text-decoration: none; }
.service-parent ul,
.service-parent ol { margin: 0; padding: 0; list-style: none; }

/* 容器 */
.sp-container {
  max-width: var(--sp-container);
  margin: 0 auto;
  padding: 0 32px;
}
.sp-section { padding: 80px 0; }

.sp-section-head {
  max-width: 780px;
  margin: 0 auto 48px;
  text-align: center;
}
.sp-section-head h2 {
  font-size: 2.1rem;
  margin-bottom: 14px;
  color: var(--sp-text) !important;
}
.sp-section-head p {
  color: var(--sp-text-sub) !important;
  font-size: 1.05rem;
}

/* 按钮 */
.sp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 1.02rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform .25s ease, box-shadow .25s ease;
  white-space: nowrap;
}
.sp-btn-primary {
  background: linear-gradient(135deg, #1677ff, #0a4fd6);
  color: #ffffff !important;
  box-shadow: 0 10px 24px rgba(22, 119, 255, .32);
}
.sp-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 30px rgba(22, 119, 255, .42);
}
.sp-btn-ghost {
  background: rgba(255, 255, 255, .12);
  color: #ffffff !important;
  border: 1px solid rgba(255, 255, 255, .55);
}
.sp-btn-ghost:hover { background: rgba(255, 255, 255, .22); transform: translateY(-2px); }
.sp-btn-sm { padding: 10px 22px; font-size: .95rem; }

/* ============ 1. Hero ============ */
.sp-hero {
  padding: 120px 0 100px;
  background: linear-gradient(135deg, #0a2540 0%, #0d2d5a 55%, #0a4fd6 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.sp-hero::before {
  content: "";
  position: absolute;
  top: -160px; right: -140px;
  width: 480px; height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(22, 119, 255, .3), transparent 68%);
  pointer-events: none;
}
.sp-hero::after {
  content: "";
  position: absolute;
  bottom: -180px; left: -120px;
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(10, 79, 214, .45), transparent 70%);
  pointer-events: none;
}
.sp-hero .sp-container { position: relative; z-index: 1; }

.sp-hero-kicker {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(22, 119, 255, .22);
  border: 1px solid rgba(22, 119, 255, .55);
  font-size: .92rem;
  margin-bottom: 20px;
}
.sp-hero h1 {
  font-size: 2.6rem;
  line-height: 1.28;
  margin: 0 auto 20px;
  max-width: 1000px;
}
.sp-hero-sub {
  font-size: 1.15rem;
  font-weight: 500;
  margin-bottom: 24px;
}
.sp-hero-desc {
  max-width: 900px;
  margin: 0 auto 30px;
  font-size: 1.05rem;
  line-height: 1.9;
}
.sp-hero-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 28px;
  margin-bottom: 36px;
}
.sp-hero-links a {
  font-size: 1rem;
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(255,255,255,.5);
  transition: border-color .25s;
}
.sp-hero-links a:hover { border-bottom-color: #ffffff; }
.sp-hero-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

/* ============ 2. 生态圈 ============ */
.sp-eco { background: #ffffff; }
.sp-eco-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.sp-eco-block {
  padding: 28px;
  border-radius: 16px;
  background: #f5f8fd;
  border: 1px solid #e8eef7;
}
.sp-eco-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid #e8eef7;
}
.sp-eco-head h3 {
  font-size: 1.35rem;
  margin: 0;
  color: var(--sp-text);
}
.sp-eco-meta { display: flex; gap: 8px; }
.sp-eco-user,
.sp-eco-tag {
  padding: 3px 12px;
  border-radius: 999px;
  font-size: .82rem;
  font-weight: 600;
}
.sp-eco-user { background: #eaf2ff; color: #1677ff; }
.sp-eco-tag { background: #fff3ec; color: #ff5a1f; }
.sp-eco-items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.sp-eco-item {
  padding: 16px;
  background: #ffffff;
  border-radius: 10px;
  border: 1px solid #e8eef7;
  transition: all .25s;
}
.sp-eco-item:hover {
  border-color: #1677ff;
  box-shadow: 0 6px 16px rgba(22, 119, 255, .1);
}
.sp-eco-item h4 {
  font-size: 1rem;
  margin: 0 0 6px;
  color: var(--sp-text);
  font-weight: 600;
}
.sp-eco-item p {
  font-size: .88rem;
  color: var(--sp-text-sub);
  margin: 0;
  line-height: 1.55;
}

/* ============ 3. 服务模式 ============ */
.sp-mode { background: #f5f8fd; }
.sp-mode-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.sp-mode-card {
  padding: 28px 24px;
  border-radius: 16px;
  background: #ffffff;
  border: 1px solid #e8eef7;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all .3s;
}
.sp-mode-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(10, 37, 64, .1);
  border-color: transparent;
}
.sp-mode-card h3 {
  font-size: 1.25rem;
  color: var(--sp-text);
  margin: 0;
}
.sp-mode-sub {
  display: inline-block;
  align-self: flex-start;
  padding: 3px 12px;
  border-radius: 999px;
  background: #eaf2ff;
  color: #1677ff;
  font-size: .82rem;
  font-weight: 600;
}
.sp-check-list {
  display: grid;
  gap: 8px;
  margin: 8px 0 16px;
  padding: 0;
}
.sp-check-list li {
  position: relative;
  padding-left: 22px;
  color: var(--sp-text-sub);
  font-size: .95rem;
}
.sp-check-list li::before {
  content: "✓";
  position: absolute;
  left: 0; top: 0;
  color: #1677ff;
  font-weight: 700;
}

/* ============ 4. 报价流程 ============ */
.sp-quote { background: #ffffff; }
.sp-quote-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.sp-quote-item {
  padding: 30px 24px;
  border-radius: 16px;
  background: #f5f8fd;
  border: 1px solid #e8eef7;
  position: relative;
}
.sp-quote-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1677ff, #0a4fd6);
  color: #ffffff;
  font-weight: 700;
  margin-bottom: 16px;
}
.sp-quote-item h3 {
  font-size: 1.15rem;
  color: var(--sp-text);
  margin-bottom: 8px;
}
.sp-quote-item p {
  color: var(--sp-text-sub);
  font-size: .95rem;
  margin: 0;
}
.sp-quote-note {
  text-align: center;
  margin-top: 32px;
  color: var(--sp-text-sub);
  font-size: 1rem;
  font-weight: 500;
}

/* ============ 5. 标准流程 ============ */
.sp-flow { background: #f5f8fd; }
.sp-flow-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.sp-flow-item {
  padding: 28px 22px 22px;
  border-radius: 14px;
  background: #ffffff;
  border: 1px solid #e8eef7;
  transition: all .25s;
}
.sp-flow-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(10, 37, 64, .08);
}
.sp-flow-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1677ff, #0a4fd6);
  color: #ffffff;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 14px;
}
.sp-flow-item h3 {
  font-size: 1.1rem;
  color: var(--sp-text);
  margin-bottom: 8px;
}
.sp-flow-item p {
  color: var(--sp-text-sub);
  font-size: .92rem;
  margin: 0;
  line-height: 1.7;
}

/* ============ 6. 核心优势 ============ */
.sp-advantage { background: #ffffff; }
.sp-adv-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.sp-adv-card {
  padding: 32px 26px;
  border-radius: 16px;
  background: linear-gradient(180deg, #f5f8fd, #ffffff);
  border: 1px solid #e8eef7;
  text-align: center;
  transition: all .3s;
}
.sp-adv-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(10, 37, 64, .1);
  border-color: transparent;
}
.sp-adv-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px; height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, #eaf2ff, #d4e6ff);
  font-size: 1.8rem;
  margin-bottom: 18px;
}
.sp-adv-card h3 {
  font-size: 1.2rem;
  color: var(--sp-text);
  margin-bottom: 10px;
}
.sp-adv-card p {
  color: var(--sp-text-sub);
  font-size: .95rem;
  margin: 0;
  line-height: 1.75;
}

/* ============ 7. 中段 CTA ============ */
.sp-mid-cta {
  padding: 80px 0;
  background: linear-gradient(135deg, #0a2540 0%, #0d2d5a 60%, #0a4fd6 100%);
  text-align: center;
}
.sp-mid-cta h2 {
  font-size: 2rem;
  margin-bottom: 16px;
}
.sp-mid-cta p {
  font-size: 1.05rem;
  margin-bottom: 28px;
}

/* ============ 8. 行业领域 ============ */
.sp-industry { background: #f5f8fd; }
.sp-ind-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.sp-ind-card {
  position: relative;
  padding: 24px 18px 20px;
  border-radius: 14px;
  background: #ffffff;
  border: 1px solid #e8eef7;
  transition: all .3s;
}
.sp-ind-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 34px rgba(10, 37, 64, .1);
  border-color: transparent;
}
.sp-ind-badge {
  position: absolute;
  top: -8px; right: 12px;
  padding: 2px 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, #ff5a1f, #ff7a3d);
  color: #ffffff;
  font-size: .74rem;
  font-weight: 600;
  line-height: 1.5;
}
.sp-ind-card h3 {
  font-size: 1.02rem;
  color: var(--sp-text);
  margin-bottom: 6px;
  font-weight: 600;
}
.sp-ind-card p {
  font-size: .85rem;
  color: var(--sp-text-sub);
  margin: 0;
  line-height: 1.6;
}

/* ============ 9. 案例 ============ */
.sp-cases { background: #ffffff; }
.sp-case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.sp-empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--sp-text-sub);
  padding: 40px 0;
}

/* ============ 10. 服务详情 ============ */
.sp-detail { background: #f5f8fd; }
.sp-detail-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 48px;
  align-items: start;
}
.sp-detail-main h2 {
  font-size: 1.9rem;
  color: var(--sp-text);
  margin-bottom: 22px;
}
.sp-detail-main h3 {
  font-size: 1.35rem;
  color: var(--sp-text);
  margin: 28px 0 12px;
  padding-left: 14px;
  border-left: 4px solid #1677ff;
}
.sp-detail-main p {
  color: #3b4a63;
  font-size: 1.05rem;
  line-height: 1.9;
  margin-bottom: 16px;
}
.sp-side-card {
  position: sticky;
  top: 100px;
  padding: 28px;
  border-radius: 16px;
  background: linear-gradient(135deg, #0a2540, #0d2d5a);
}
.sp-side-card h3 { font-size: 1.25rem; margin-bottom: 10px; }
.sp-side-card p { margin-bottom: 20px; font-size: .98rem; }
.sp-side-card .sp-btn { width: 100%; }

/* ============ 11. FAQ ============ */
.sp-faq { background: #ffffff; }
.sp-faq-list {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}
.sp-faq-item {
  border: 1px solid #e8eef7;
  border-radius: 10px;
  background: #ffffff;
  transition: box-shadow .25s, border-color .25s;
}
.sp-faq-item[open] {
  border-color: #1677ff;
  box-shadow: 0 8px 24px rgba(22, 119, 255, .12);
}
.sp-faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 56px 20px 24px;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--sp-text) !important;
  position: relative;
}
.sp-faq-item summary::-webkit-details-marker { display: none; }
.sp-faq-item summary::after {
  content: "+";
  position: absolute;
  right: 22px; top: 50%;
  transform: translateY(-50%);
  width: 26px; height: 26px;
  border-radius: 50%;
  background: #f5f8fd;
  color: #1677ff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}
.sp-faq-item[open] summary::after {
  content: "−";
  background: #1677ff;
  color: #ffffff;
}
.sp-faq-answer {
  padding: 0 24px 22px;
  color: var(--sp-text-sub) !important;
  line-height: 1.8;
  font-size: 1rem;
}

/* ============ 12. 相关服务 ============ */
.sp-related {
  background: linear-gradient(135deg, #0a2540 0%, #0d2d5a 60%, #0a4fd6 100%);
}
.sp-section-head-light h2 { color: #ffffff !important; }
.sp-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.sp-related-card {
  display: block;
  padding: 32px 28px;
  border-radius: 16px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .18);
  transition: all .3s;
}
.sp-related-card:hover {
  background: rgba(22, 119, 255, .25);
  border-color: rgba(79, 172, 254, .6);
  transform: translateY(-4px);
}
.sp-related-card h3 { font-size: 1.25rem; margin-bottom: 10px; }
.sp-related-card p { margin: 0; font-size: 1rem; }

/* ============ 13. 底部 CTA ============ */
.sp-cta {
  background: linear-gradient(135deg, #0d2d5a 0%, #0a4fd6 100%);
  padding: 90px 0;
}
.sp-cta-box { text-align: center; max-width: 820px; margin: 0 auto; }
.sp-cta-box h2 { font-size: 2.1rem; margin-bottom: 14px; }
.sp-cta-box > p { margin-bottom: 30px; font-size: 1.05rem; }
.sp-cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

/* ============ 响应式 ============ */
@media (max-width: 1200px) {
  .sp-mode-grid { grid-template-columns: repeat(2, 1fr); }
  .sp-adv-grid { grid-template-columns: repeat(2, 1fr); }
  .sp-ind-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 1100px) {
  .sp-detail-wrap { grid-template-columns: 1fr; }
  .sp-side-card { position: static; }
  .sp-eco-grid { grid-template-columns: 1fr; }
  .sp-quote-list { grid-template-columns: repeat(2, 1fr); }
  .sp-flow-list { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .sp-container { padding: 0 22px; }
  .sp-section { padding: 60px 0; }
  .sp-hero { padding: 90px 0 70px; }
  .sp-hero h1 { font-size: 2rem; }
  .sp-case-grid { grid-template-columns: repeat(2, 1fr); }
  .sp-related-grid { grid-template-columns: 1fr; }
  .sp-ind-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 600px) {
  .sp-container { padding: 0 18px; }
  .sp-section { padding: 48px 0; }
  .sp-hero { padding: 70px 0 56px; }
  .sp-hero h1 { font-size: 1.6rem; }
  .sp-hero-desc { font-size: .98rem; }
  .sp-hero-links { flex-direction: column; gap: 12px; }
  .sp-mode-grid,
  .sp-quote-list,
  .sp-flow-list,
  .sp-adv-grid { grid-template-columns: 1fr; }
  .sp-case-grid { grid-template-columns: 1fr; }
  .sp-ind-grid { grid-template-columns: repeat(2, 1fr); }
  .sp-eco-items { grid-template-columns: 1fr; }
  .sp-hero-actions { flex-direction: column; align-items: stretch; }
  .sp-btn { width: 100%; }
}