@charset "UTF-8";

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  margin: 0;
  padding: 0;
  background-color: #0B0E1A;
  color: #EAECEF;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  font-size: 18px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.okx-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11, 14, 26, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(41, 98, 255, 0.12);
  height: 68px;
  display: flex;
  align-items: center;
}

.okx-nav-container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.okx-nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: #EAECEF;
  flex-shrink: 0;
}

.okx-nav-icon {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}

.okx-nav-brand {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 1px;
  color: #FFFFFF;
}

.okx-nav-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.okx-nav-item {
  margin: 0;
  padding: 0;
}

.okx-nav-link {
  display: block;
  padding: 10px 18px;
  color: #8B8FA9;
  text-decoration: none;
  font-size: 18px;
  font-weight: 500;
  border-radius: 8px;
  transition: color 0.25s ease, background 0.25s ease;
}

.okx-nav-link:hover {
  color: #FFFFFF;
  background: rgba(41, 98, 255, 0.1);
}

.okx-nav-register {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  background: #2962FF;
  color: #FFFFFF;
  text-decoration: none;
  font-size: 18px;
  font-weight: 600;
  border-radius: 8px;
  transition: background 0.25s ease, transform 0.2s ease;
  flex-shrink: 0;
}

.okx-nav-register:hover {
  background: #448AFF;
  transform: translateY(-1px);
}

.okx-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px 32px 80px;
  background: radial-gradient(ellipse 80% 60% at 50% 30%, rgba(41, 98, 255, 0.15) 0%, transparent 70%),
              radial-gradient(ellipse 60% 50% at 80% 70%, rgba(0, 212, 170, 0.08) 0%, transparent 70%),
              #0B0E1A;
  overflow: hidden;
}

.okx-hero-overlay {
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%232962FF' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.okx-hero-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.okx-hero-badge {
  display: inline-block;
  padding: 8px 22px;
  background: rgba(41, 98, 255, 0.18);
  border: 1px solid rgba(41, 98, 255, 0.3);
  border-radius: 50px;
  color: #82B1FF;
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 28px;
  letter-spacing: 0.5px;
}

.okx-hero-title {
  font-size: 52px;
  font-weight: 800;
  color: #FFFFFF;
  margin: 0 0 24px;
  line-height: 1.2;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #FFFFFF 0%, #B0C4FF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.okx-hero-desc {
  font-size: 20px;
  color: #A0A5C0;
  margin: 0 0 40px;
  max-width: 680px;
  line-height: 1.8;
}

.okx-hero-actions {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: center;
}

.okx-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-size: 19px;
  font-weight: 600;
  border-radius: 10px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s ease;
  border: none;
  font-family: inherit;
  white-space: nowrap;
}

.okx-btn-primary {
  background: #2962FF;
  color: #FFFFFF;
  box-shadow: 0 4px 20px rgba(41, 98, 255, 0.35);
}

.okx-btn-primary:hover {
  background: #448AFF;
  box-shadow: 0 6px 28px rgba(41, 98, 255, 0.5);
  transform: translateY(-2px);
}

.okx-btn-outline {
  background: transparent;
  color: #82B1FF;
  border: 2px solid rgba(41, 98, 255, 0.4);
}

.okx-btn-outline:hover {
  background: rgba(41, 98, 255, 0.1);
  border-color: #448AFF;
  color: #FFFFFF;
}

.okx-hero-metrics {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 48px;
  margin-top: 72px;
  flex-wrap: wrap;
  justify-content: center;
}

.okx-hero-metric-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.okx-hero-metric-value {
  font-size: 36px;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -1px;
}

.okx-hero-metric-label {
  font-size: 18px;
  color: #6B7199;
  font-weight: 500;
}

.okx-section {
  padding: 100px 32px;
}

.okx-section-container {
  max-width: 1280px;
  margin: 0 auto;
}

.okx-section-heading {
  font-size: 40px;
  font-weight: 800;
  color: #FFFFFF;
  text-align: center;
  margin: 0 0 18px;
  line-height: 1.3;
  letter-spacing: -0.3px;
}

.okx-section-subheading {
  font-size: 20px;
  color: #8B8FA9;
  text-align: center;
  margin: 0 0 56px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.okx-advantages {
  background: #0D1124;
}

.okx-advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.okx-advantage-card {
  background: #111633;
  border: 1px solid rgba(41, 98, 255, 0.08);
  border-radius: 16px;
  padding: 36px 28px;
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.okx-advantage-card:hover {
  border-color: rgba(41, 98, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.okx-advantage-icon-wrap {
  width: 56px;
  height: 56px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(41, 98, 255, 0.1);
  border-radius: 14px;
}

.okx-advantage-icon {
  width: 40px;
  height: 40px;
}

.okx-advantage-title {
  font-size: 22px;
  font-weight: 700;
  color: #FFFFFF;
  margin: 0 0 14px;
}

.okx-advantage-desc {
  font-size: 18px;
  color: #8B8FA9;
  margin: 0;
  line-height: 1.75;
}

.okx-products {
  background: #0B0E1A;
}

.okx-products-layout {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.okx-product-block {
  background: #111633;
  border: 1px solid rgba(41, 98, 255, 0.06);
  border-radius: 18px;
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.okx-product-block:hover {
  border-color: rgba(41, 98, 255, 0.25);
  background: #141A3A;
}

.okx-product-visual {
  margin-bottom: 24px;
}

.okx-product-visual-icon {
  width: 64px;
  height: 64px;
}

.okx-product-visual-icon svg {
  width: 100%;
  height: 100%;
}

.okx-product-name {
  font-size: 24px;
  font-weight: 700;
  color: #FFFFFF;
  margin: 0 0 14px;
}

.okx-product-summary {
  font-size: 18px;
  color: #8B8FA9;
  margin: 0;
  line-height: 1.75;
}

.okx-security {
  background: #0D1124;
}

.okx-security-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.okx-security-card {
  background: #111633;
  border-radius: 16px;
  padding: 36px 32px;
  position: relative;
  border-left: 4px solid #2962FF;
  transition: border-left-color 0.3s ease;
}

.okx-security-card:hover {
  border-left-color: #448AFF;
}

.okx-security-index {
  display: block;
  font-size: 48px;
  font-weight: 900;
  color: rgba(41, 98, 255, 0.12);
  margin-bottom: 12px;
  line-height: 1;
  letter-spacing: -2px;
}

.okx-security-title {
  font-size: 22px;
  font-weight: 700;
  color: #FFFFFF;
  margin: 0 0 14px;
}

.okx-security-desc {
  font-size: 18px;
  color: #8B8FA9;
  margin: 0;
  line-height: 1.75;
}

.okx-download-zone {
  background: linear-gradient(180deg, #0B0E1A 0%, #0D1124 100%);
}

.okx-download-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 48px;
}

.okx-download-card {
  background: #111633;
  border: 1px solid rgba(41, 98, 255, 0.1);
  border-radius: 18px;
  padding: 40px 32px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.okx-download-card:hover {
  border-color: rgba(41, 98, 255, 0.35);
  transform: translateY(-6px);
}

.okx-download-card-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 20px;
}

.okx-download-card-icon svg {
  width: 100%;
  height: 100%;
}

.okx-download-card-title {
  font-size: 24px;
  font-weight: 700;
  color: #FFFFFF;
  margin: 0 0 12px;
}

.okx-download-card-desc {
  font-size: 18px;
  color: #8B8FA9;
  margin: 0 0 28px;
  line-height: 1.65;
}

.okx-btn-download {
  background: linear-gradient(135deg, #2962FF 0%, #448AFF 100%);
  color: #FFFFFF;
  font-size: 19px;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: 10px;
  box-shadow: 0 4px 18px rgba(41, 98, 255, 0.3);
}

.okx-btn-download:hover {
  box-shadow: 0 6px 26px rgba(41, 98, 255, 0.5);
  transform: translateY(-2px);
}

.okx-download-android-promo {
  background: linear-gradient(135deg, #1A2040 0%, #1E2A50 50%, #1A2040 100%);
  border: 1px solid rgba(41, 98, 255, 0.2);
  border-radius: 20px;
  padding: 48px 48px;
  position: relative;
  overflow: hidden;
}

.okx-download-android-promo::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(41, 98, 255, 0.2) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.okx-download-android-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.okx-download-android-tag {
  display: inline-block;
  padding: 6px 18px;
  background: #00E676;
  color: #0B0E1A;
  font-size: 18px;
  font-weight: 700;
  border-radius: 6px;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.okx-download-android-title {
  font-size: 28px;
  font-weight: 800;
  color: #FFFFFF;
  margin: 0 0 14px;
}

.okx-download-android-desc {
  font-size: 19px;
  color: #A0A5C0;
  margin: 0 0 32px;
  max-width: 560px;
  line-height: 1.7;
}

.okx-btn-android {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 36px;
  background: #00C853;
  color: #0B0E1A;
  font-size: 20px;
  font-weight: 700;
  border-radius: 12px;
  text-decoration: none;
  transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
  box-shadow: 0 4px 20px rgba(0, 200, 83, 0.3);
}

.okx-btn-android:hover {
  background: #00E676;
  box-shadow: 0 6px 28px rgba(0, 200, 83, 0.45);
  transform: translateY(-2px);
}

.okx-btn-android-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.okx-footer {
  background: #070A14;
  border-top: 1px solid rgba(41, 98, 255, 0.08);
  padding: 48px 32px 36px;
}

.okx-footer-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.okx-footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.okx-footer-icon {
  width: 28px;
  height: 28px;
  border-radius: 4px;
}

.okx-footer-brand-name {
  font-size: 20px;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 1px;
}

.okx-footer-links {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}

.okx-footer-link {
  color: #6B7199;
  text-decoration: none;
  font-size: 18px;
  font-weight: 500;
  transition: color 0.2s ease;
}

.okx-footer-link:hover {
  color: #82B1FF;
}

.okx-footer-copy {
  font-size: 18px;
  color: #4A5070;
  margin: 0;
  text-align: center;
}

@media (max-width: 1024px) {
  .okx-advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .okx-products-layout {
    grid-template-columns: 1fr;
  }

  .okx-security-grid {
    grid-template-columns: 1fr;
  }

  .okx-download-grid {
    grid-template-columns: 1fr;
  }

  .okx-hero-title {
    font-size: 38px;
  }

  .okx-section-heading {
    font-size: 32px;
  }

  .okx-nav-menu {
    display: none;
  }
}

@media (max-width: 640px) {
  .okx-hero-title {
    font-size: 30px;
  }

  .okx-hero-metrics {
    gap: 24px;
  }

  .okx-hero-metric-value {
    font-size: 28px;
  }

  .okx-section {
    padding: 64px 20px;
  }

  .okx-section-heading {
    font-size: 28px;
  }

  .okx-advantages-grid {
    grid-template-columns: 1fr;
  }

  .okx-download-android-promo {
    padding: 32px 24px;
  }
}