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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  color: #333;
  background: #F7F8FA;
  padding-bottom: 66px;
}

.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.header {
  background: white;
  padding: 9px 0;
  box-sizing: border-box;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  align-items: center;
}

.logo {
  width: 141px;
  height: 38px;
  margin-right: 86px;
}

.logo::before {
  content: "";
  width: 8px;
  height: 8px;
  background: #2563eb;
  border-radius: 50%;
  margin-right: 8px;
}

.nav {
  display: flex;
  gap: 56px;
}

.nav a {
  text-decoration: none;
  color: #64748b;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

.nav a:hover {
  color: #2563eb;
}

.login-btn {
  background: #2563eb;
  color: white;
  padding: 8px 20px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
}

.login-btn:hover {
  background: #1d4ed8;
}

/* Hero Section */
.hero {
  background: url('../assets/Group_1321316263@2x.png') no-repeat;
  background-size: 100% 512px;
  height: 512px;
  /* padding: 60px 0 80px; */
  position: relative;
  overflow: hidden;
}

.hero-content {
  display: flex;
  align-items: center;
  /* gap: 80px; */
  position: relative;
  z-index: 2;
}

.hero-text {
  /* flex: 1; */
  /* width: 80%; */
}

.hero-title {
  font-size: 68px;
  /* font-weight: 700; */
  width: 120%;
  /* top: -40px; */
  position: relative;
  line-height: 1.3;
  background: -webkit-linear-gradient(#4C8CEF, #054ACD);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0;
}

.hero-image {
  /* flex: 1; */
  /* width: 30%; */
  display: flex;
  justify-content: flex-end;
}

.hero-image img {
  position: relative;
  right: -80px;
  width: 466px;
  height: 512px;
  object-fit: cover;
  border-radius: 16px;
  /* box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1); */
}

/* Feature Cards */
.features {
  width: 100%;
  /* background: #f8fafc; */
  padding: 60px 0;
  box-sizing: border-box;
  margin-top: -145px;
  position: relative;
  z-index: 3;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: white;
  padding: 32px 24px;
  border-radius: 16px;
  text-align: center;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.feature-icon {
  width: 56px;
  height: 56px;
  /* background: linear-gradient(135deg, #dbeafe, #bfdbfe); */
  border-radius: 16px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.feature-icon::after {
  content: "";
  width: 24px;
  height: 24px;
  background: #2563eb;
  border-radius: 6px;
}

.feature-title {
  font-size: 15px;
  font-weight: 600;
  color: #1e293b;
  line-height: 1.4;
}

/* Core Technology */
.core-tech {
  /* background: #dbeafe; */
}

.core-background {
  padding: 88px;
  background: url('../assets/Group_1321315972@2x.png') no-repeat;
  /* background-size: 100% 512px; */
}

.section-title {
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #0646CA;
}

.section-subtitle {
  text-align: center;
  color: #64748b;
  margin-bottom: 48px;
  font-size: 20px;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.tech-card {
  position: relative;
  height: 240px;
  border-radius: 16px;
  overflow: hidden;
  background: #e2e8f0;
  transition: transform 0.2s;
}

.tech-card:hover {
  transform: scale(1.02);
}

.tech-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tech-label {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: white;
  font-weight: 600;
  font-size: 16px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* Innovation Cases */
.innovation {
  background: white;
  margin-top: 46px;
  padding: 66px 88px;
}

.innovation .section-title {
  color: #2563eb;
}

.cases-container {
  padding-top: 42px;
  max-width: 1000px;
  margin: 0 auto;
}

.case-item {
  display: flex;
  align-items: center;
  background: #dbeafe;
  border-radius: 16px;
  padding: 40px 40px 0 40px;
  margin-bottom: 24px;
  gap: 40px;
}

.case-content {
  flex: 1;
}

.case-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #1e293b;
}

.case-description {
  color: #64748b;
  line-height: 1.6;
  font-size: 15px;
}

.case-image {
  /* flex: 1; */
  max-width: 494px;
}

.case-image img {
  width: 100%;
  /* height: 260px; */
  vertical-align: bottom;
  object-fit: cover;
  border-radius: 12px 12px 0 0;
}

/* Technology Advantages */
.tech-advantages {
  background: url('../assets/Group_1321315952@2x.png') no-repeat;
  margin-top: 46px;
  padding: 66px 88px;
}

.advantages-description {
  text-align: center;
  color: #64748b;
  margin-bottom: 48px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  font-size: 16px;
  line-height: 1.6;
}

.advantages-grid {
  display: flex;
  justify-items: center;
  justify-content: center;
  /* grid-template-columns: repeat(4, 1fr); */
  gap: 20px;
}

.advantage-card {
  width: 202px;
  height: 455px;
  color: white;
  padding: 28px 20px;
  box-sizing: border-box;
  border-radius: 16px;
  text-align: center;
  transition: width 2s;
  position: relative;
  background-size: contain;
}

.advantage-card:nth-child(1) {
  background: url('../assets/small0.png') no-repeat;
  background-size: 202px 455px;
}

.advantage-card:nth-child(2) {
  background: url('../assets/small1.png') no-repeat;
  background-size: 202px 455px;
}

.advantage-card:nth-child(3) {
  background: url('../assets/small2.png') no-repeat;
  background-size: 202px 455px;

}

.advantage-card:nth-child(4) {
  background: url('../assets/small3.png') no-repeat;
  background-size: 202px 455px;
}

.advantage-title {
  width: 100%;
  position: absolute;
  left: 0;
  bottom: 28px;
  font-weight: 600;
  font-size: 14px;
  line-height: 1.3;
}

/* Solutions */
.solutions {
  background: white;
  padding: 66px 35px;
  margin-top: 46px;
}

.solutions .section-title {
  color: #2563eb;
  margin-bottom: 97px;
}

.consultation-section {
  display: flex;
  align-items: center;
  background: #D8E3FF;
  border-radius: 16px;
  padding: 40px;
  margin-bottom: 32px;
  gap: 40px;
  position: relative;
}

.consultation-content {
  flex: 1;
  z-index: 9;
}

.consultation-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #1e293b;
}

.consultation-subtitle {
  color: #64748b;
  margin-bottom: 12px;
  font-size: 14px;
}

.consultation-description {
  color: #64748b;
  line-height: 1.6;
  font-size: 15px;
}

.consultation-image {
  flex: 1;
  position: absolute;
  bottom: 0;
  right: 0;
  height: 250px;
  max-width: 300px;
}

.consultation-image img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: 12px;
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.solution-card {
  padding: 36px;
  border-radius: 16px;
  color: white;
}

.solution-card:first-child {
  background: #99B0E5;
}

.solution-card:last-child {
  background: #7195E2;
}

.solution-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
}

.solution-description {
  line-height: 1.6;
  font-size: 15px;
  margin-bottom: 12px;
}

/* Developer Tools */
.developer-tools {
  margin: 46px auto;
  background: #dbeafe;
  padding: 66px 36px;
  background: url(../assets/Group_1321316250@2x.png) no-repeat;
}

.tools-description {
  margin: 38px 0 36px 0;
  font-size: 28px;
  color: #253443;
}

.tools-buttons {
  display: flex;
  /* justify-content: center; */
  gap: 38px;
  flex-wrap: wrap;
  margin-bottom: 36px;
  border-bottom: 38px;
}

.tool-btn {
  background: #0646CA;
  color: white;
  padding: 6px 31px 5px 31px;
  border: none;
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
  font-size: 18px;
  /* transition: background 0.2s; */
}

.tool-btn:hover {
  background: #1d4ed8;
}

.tools-support {
  /* text-align: center; */
  color: #64748b;
  font-size: 14px;
  font-size: 20px;
  margin-bottom: 38px;
}

.tools-support:last-child {
  margin-bottom: 0;
}

/* Footer */
.footer {
  background: #596978;
  color: white;
  padding: 60px 0 30px;
}

.footer-content {
  padding: 0 73px;
  display: flex;
  /* grid-template-columns: repeat(2, 1fr); */
  gap: 60px;
  margin-bottom: 40px;
}

.footer-section:first-child {
  width: 65%;
}

.footer-section h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-section p,
.footer-section a {
  color: #cbd5e1;
  margin-bottom: 8px;
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
}

.footer-section a:hover {
  color: white;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.footer-links a {
  display: block;
}

.footer-bottom {
  border-top: 1px solid #334155;
  padding-top: 24px;
  text-align: center;
  color: #94a3b8;
  font-size: 14px;
}

.ai {
  width: 100vw;
  height: 66px;
  box-sizing: border-box;
  color: #054ACD;
  position: fixed;
  bottom: 0px;
  background-color: #FFF;
  z-index: 999;
}

.aiBox {
  display: flex;
  padding: 15px 0;
  justify-content: space-between;

}

.aiText {
  padding-top: 7px;
}

.aiImg {
  height: 36px;
  width: 125px;
}

/* Responsive Design */
@media (max-width: 768px) {

  .hero-content,
  .case-item,
  .consultation-section {
    flex-direction: column;
    text-align: center;
  }

  .features-grid,
  .tech-grid,
  .advantages-grid,
  .solutions-grid {
    grid-template-columns: 1fr;
  }

  .nav {
    display: none;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-image img {
    right: 0px;
    width: 240px;
    height: 300px;
  }

  .tools-buttons {
    flex-direction: column;
    align-items: center;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.flex {
  display: flex;
}

.flex1 {
  flex: 1;
}

.inlineBlock {
  display: inline-block;
}

.m_r_10px {
  margin-right: 10px;
}