:root {
  --navy: #1a3668;
  --navy-deep: #0f2447;
  --blue: #2b6cb0;
  --blue-light: #4a9fd4;
  --cyan: #5ec4d8;
  --gold: #f5a623;
  --gold-deep: #e8940f;
  --bg: #f4f7fb;
  --bg-strong: #e8eef6;
  --panel: rgba(255, 255, 255, 0.88);
  --panel-strong: #ffffff;
  --line: rgba(26, 54, 104, 0.1);
  --line-strong: rgba(26, 54, 104, 0.16);
  --text: #1a3668;
  --muted: #5a6f8f;
  --shadow: 0 20px 60px rgba(26, 54, 104, 0.12);
  --shadow-gold: 0 16px 40px rgba(245, 166, 35, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "PingFang SC", "Microsoft YaHei", "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 8% 0%, rgba(74, 159, 212, 0.14), transparent 32%),
    radial-gradient(circle at 92% 8%, rgba(245, 166, 35, 0.1), transparent 24%),
    linear-gradient(180deg, #f8fafc 0%, var(--bg) 55%, #eef3f9 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(26, 54, 104, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 54, 104, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.25), transparent 85%);
}

.site-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 20px 0 72px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 12px 20px;
  position: sticky;
  top: 14px;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.95);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.brand,
.nav a {
  color: var(--text);
  text-decoration: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: -0.02em;
  max-width: 280px;
}

.brand img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.2;
}

.brand-text strong {
  font-size: 14px;
  color: var(--navy);
}

.brand-text span {
  font-size: 10px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.nav {
  display: inline-flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  transition: color 160ms ease;
}

.nav a:hover,
.nav a.is-active {
  color: var(--navy);
}

.nav a.nav-cta {
  color: #fff;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-deep) 100%);
  padding: 8px 16px;
  border-radius: 999px;
  box-shadow: var(--shadow-gold);
}

.nav a.nav-cta:hover {
  color: #fff;
  filter: brightness(1.05);
}

.hero {
  display: grid;
  grid-template-columns: minmax(280px, 420px) minmax(0, 1fr);
  align-items: center;
  gap: 48px;
  padding: 56px 0 40px;
}

.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}

.hero-logo {
  width: min(100%, 360px);
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 24px 48px rgba(26, 54, 104, 0.14));
}

.hero-company-cn {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 0.04em;
}

.hero-company-en {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.hero-company-en::before,
.hero-company-en::after {
  content: "";
  width: 28px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold));
  border-radius: 2px;
}

.hero-company-en::after {
  background: linear-gradient(90deg, var(--gold), transparent);
}

.hero-copy .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue);
}

.hero-copy .eyebrow::before {
  content: "";
  width: 32px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  border-radius: 2px;
}

.hero-copy h1 {
  margin: 14px 0 16px;
  font-size: clamp(1.75rem, 3.2vw, 2.65rem);
  line-height: 1.22;
  letter-spacing: -0.03em;
  font-weight: 700;
  color: var(--navy-deep);
}

.hero-copy p {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 560px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.stat-pill {
  padding: 12px 18px;
  border-radius: 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(26, 54, 104, 0.06);
}

.stat-pill strong {
  display: block;
  font-size: 20px;
  color: var(--navy);
  line-height: 1.2;
}

.stat-pill span {
  font-size: 12px;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  color: #fff;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-deep) 100%);
  box-shadow: var(--shadow-gold);
}

.button.secondary {
  color: var(--navy);
  background: var(--panel-strong);
  border: 1px solid var(--line-strong);
  box-shadow: 0 10px 28px rgba(26, 54, 104, 0.08);
}

.section-block {
  margin-top: 36px;
  padding: 40px;
  border-radius: 28px;
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.section-heading {
  padding: 48px 0 20px;
}

.section-heading span {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--blue);
  font-weight: 700;
}

.section-heading h2 {
  margin: 12px 0 10px;
  font-size: clamp(1.5rem, 2.5vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
  font-weight: 700;
  color: var(--navy-deep);
}

.section-heading p {
  margin: 0;
  max-width: 720px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.about-grid,
.tech-grid,
.product-grid,
.contact-grid {
  display: grid;
  gap: 20px;
}

.about-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.about-card h3,
.tech-card h3,
.product-card h3,
.contact-card h3 {
  margin: 0 0 10px;
  font-size: 20px;
  color: var(--navy);
}

.about-card p,
.tech-card p,
.product-card p,
.contact-card p,
.contact-card li {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.about-card {
  padding: 24px;
  border-radius: 20px;
  background: linear-gradient(145deg, rgba(74, 159, 212, 0.08), rgba(255, 255, 255, 0.6));
  border: 1px solid var(--line);
}

.tech-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.tech-card {
  padding: 22px;
  border-radius: 20px;
  background: var(--panel-strong);
  border: 1px solid var(--line);
  text-align: center;
}

.tech-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 14px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  background: linear-gradient(135deg, rgba(43, 108, 176, 0.12), rgba(94, 196, 216, 0.2));
}

.product-grid {
  grid-template-columns: 1.2fr 1fr;
  align-items: stretch;
}

.product-card {
  padding: 28px;
  border-radius: 22px;
  background: var(--panel-strong);
  border: 1px solid var(--line);
}

.product-card.featured {
  background:
    linear-gradient(160deg, rgba(26, 54, 104, 0.96) 0%, rgba(43, 108, 176, 0.92) 100%);
  border-color: transparent;
  color: #fff;
}

.product-card.featured h3,
.product-card.featured p,
.product-card.featured .product-tag {
  color: rgba(255, 255, 255, 0.92);
}

.product-card.featured .product-tag {
  background: rgba(245, 166, 35, 0.25);
  color: #ffe8b8;
}

.product-tag {
  display: inline-block;
  margin-bottom: 14px;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 700;
  background: rgba(245, 166, 35, 0.15);
  color: var(--gold-deep);
}

.product-features {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.product-features li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.7;
  color: inherit;
  opacity: 0.9;
}

.product-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--gold);
  font-weight: 800;
}

.product-card:not(.featured) .product-features li::before {
  color: var(--blue);
}

.product-actions {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.timeline {
  display: grid;
  gap: 16px;
  margin-top: 8px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.timeline-item:last-child {
  border-bottom: none;
}

.timeline-year {
  font-size: 18px;
  font-weight: 700;
  color: var(--gold-deep);
}

.timeline-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.contact-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.contact-card {
  padding: 24px;
  border-radius: 20px;
  background: var(--panel-strong);
  border: 1px solid var(--line);
}

.contact-card ul {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.contact-card li + li {
  margin-top: 8px;
}

.contact-card a {
  color: var(--blue);
  text-decoration: none;
}

.contact-card a:hover {
  text-decoration: underline;
}

.feature-grid,
.scene-grid,
.pricing-grid {
  display: grid;
  gap: 20px;
}

.feature-section {
  margin-top: 8px;
}

.feature-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.feature-card,
.scene-card {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 24px;
  padding: 26px;
  box-shadow: var(--shadow);
}

.card-tag {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.feature-card h3,
.feature-card h4,
.scene-card h3,
.scene-card h4 {
  margin: 0 0 10px;
  font-size: 20px;
  color: var(--navy);
}

.feature-card h4,
.scene-card h4 {
  font-size: 17px;
}

.feature-card {
  min-height: auto;
}

.feature-card-large {
  grid-column: span 2;
}

.feature-card p,
.scene-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--muted);
}

.scene-section {
  margin-top: 8px;
}

.scene-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.scene-card {
  min-height: auto;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.95)),
    linear-gradient(135deg, rgba(74, 159, 212, 0.2), rgba(26, 54, 104, 0.06));
}

.pricing-section {
  margin-top: 8px;
  padding: 12px 0;
}

.pricing-header {
  padding: 18px 0 26px;
  text-align: center;
}

.section-kicker {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
}

.pricing-header h1,
.pricing-header h2 {
  margin: 14px 0 10px;
  font-size: clamp(1.85rem, 3vw, 2.6rem);
  line-height: 1.12;
  letter-spacing: -0.04em;
  font-weight: 700;
  color: var(--navy-deep);
}

.pricing-header p {
  margin: 0 auto;
  max-width: 680px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.pricing-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: stretch;
}

.pricing-page {
  padding-top: 36px;
}

.pricing-section-standalone {
  padding-top: 24px;
}

.pricing-card {
  display: flex;
  flex-direction: column;
  min-height: 540px;
  padding: 28px;
  border-radius: 26px;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.pricing-card-featured {
  border-color: rgba(43, 108, 176, 0.4);
  box-shadow: 0 22px 56px rgba(43, 108, 176, 0.14);
}

.plan-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.plan-badge {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  color: var(--navy);
  font-size: 14px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.8);
}

.plan-badge.featured {
  color: var(--blue);
  border-color: rgba(43, 108, 176, 0.35);
}

.plan-highlight {
  color: var(--gold-deep);
  font-size: 14px;
  font-weight: 600;
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 28px 0 18px;
  font-variant-numeric: lining-nums tabular-nums;
}

.currency {
  font-size: 22px;
  color: #98a2b3;
  font-weight: 500;
  transform: translateY(-6px);
}

.plan-price strong {
  font-size: clamp(3.8rem, 5vw, 5rem);
  line-height: 0.9;
  letter-spacing: -0.04em;
  font-weight: 600;
  color: var(--navy);
}

.price-note {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.2;
}

.plan-summary {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.plan-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.plan-list li {
  position: relative;
  padding-left: 22px;
  color: #344054;
  font-size: 14px;
  line-height: 1.7;
}

.plan-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--blue);
  font-weight: 800;
}

.pricing-button {
  width: 100%;
  margin-top: auto;
}

.legal-page {
  padding-top: 36px;
}

.legal-card {
  padding: 40px;
  border-radius: 28px;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.legal-card h1 {
  margin: 12px 0 10px;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--navy-deep);
}

.legal-card h2 {
  margin: 32px 0 12px;
  font-size: 18px;
  color: var(--navy);
}

.legal-card h3 {
  margin: 24px 0 8px;
  font-size: 16px;
  color: var(--navy);
}

.legal-card p,
.legal-card li {
  color: var(--muted);
  font-size: 14px;
  line-height: 2;
}

.legal-card ul {
  margin: 4px 0 12px;
  padding-left: 22px;
}

.legal-updated {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 14px;
}

.site-footer {
  margin-top: 48px;
  padding: 36px 28px 20px;
  border-radius: 24px;
  background: linear-gradient(160deg, var(--navy-deep) 0%, var(--navy) 100%);
  color: rgba(255, 255, 255, 0.82);
}

.footer-main {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, minmax(0, 1fr));
  gap: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand img {
  width: 120px;
  height: auto;
  margin-bottom: 12px;
  object-fit: contain;
  background: #fff;
  border-radius: 12px;
  padding: 8px;
}

.footer-brand p {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.7);
  max-width: 280px;
}

.footer-col h4 {
  margin: 0 0 14px;
  font-size: 14px;
  color: #fff;
}

.footer-col a,
.footer-col p {
  display: block;
  margin: 0 0 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
}

.footer-col a:hover {
  color: var(--gold);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 20px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  flex-wrap: wrap;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
}

.footer-bottom a:hover {
  color: var(--gold);
}

@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-copy p,
  .section-heading p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-stats,
  .hero-actions {
    justify-content: center;
  }

  .tech-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-grid,
  .about-grid,
  .contact-grid,
  .footer-main {
    grid-template-columns: 1fr;
  }

  .feature-card-large {
    grid-column: span 1;
  }
}

.about-simple p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.about-simple p:last-child {
  margin-bottom: 0;
}

.scope-list {
  margin: 0;
  padding: 0 0 0 20px;
  display: grid;
  gap: 10px;
}

.scope-list li {
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.scope-note {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.section-heading-sub {
  padding-top: 28px;
  padding-bottom: 14px;
}

.section-heading-sub h3 {
  margin: 0;
  font-size: 1.15rem;
  color: var(--navy);
}

.product-card-standalone {
  padding: 28px;
  border-radius: 24px;
  background: var(--panel-strong);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.product-card-standalone h3 {
  margin: 0 0 10px;
  font-size: 1.5rem;
  color: var(--navy-deep);
}

.product-card-standalone p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.footer-main-simple {
  grid-template-columns: 1.2fr 2fr;
  align-items: center;
}

.footer-col-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
}

.footer-col-inline a {
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  font-size: 13px;
}

.footer-col-inline a:hover {
  color: var(--gold);
}

@media (max-width: 720px) {
  .site-shell {
    width: min(100% - 20px, 1180px);
  }

  .topbar {
    position: static;
    flex-wrap: wrap;
  }

  .nav {
    width: 100%;
    gap: 12px 16px;
    justify-content: flex-start;
  }

  .brand-text strong {
    font-size: 12px;
  }

  .section-block {
    padding: 24px 20px;
  }

  .feature-grid,
  .scene-grid,
  .pricing-grid,
  .tech-grid {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}