:root {
  --ink: #121820;
  --muted: #657080;
  --line: #dce3ea;
  --brand: #0f6bff;
  --brand-2: #00a6a6;
  --accent: #f2a640;
  --paper: #f7f9fb;
  --deep: #0b1220;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  text-decoration: none;
}

.sy-navbar {
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(220, 227, 234, 0.7);
  backdrop-filter: blur(16px);
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 800;
  letter-spacing: 0;
}

.brand-logo {
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  display: block;
}

.nav-link {
  color: #2c3642;
  font-weight: 600;
}

.nav-link:hover {
  color: var(--brand);
}

.navbar-toggler {
  display: block;
  border-color: rgba(18, 24, 32, 0.28);
  border-radius: 8px;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.18rem rgba(15, 107, 255, 0.18);
}

.sy-menu-toggle {
  width: 42px;
  height: 38px;
  padding: 0;
  color: var(--ink);
  font-size: 1.5rem;
  line-height: 1;
}

@media (min-width: 992px) {
  .navbar-toggler {
    display: none;
  }
}

.btn {
  border-radius: 8px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary {
  --bs-btn-bg: var(--brand);
  --bs-btn-border-color: var(--brand);
  --bs-btn-hover-bg: #0958da;
  --bs-btn-hover-border-color: #0958da;
}

.hero-section {
  position: relative;
  min-height: 720px;
  overflow: hidden;
  color: #fff;
}

.hero-media,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-media {
  background-image: url("assets/hero-enterprise-software.png");
  background-position: center;
  background-size: cover;
  transform: scale(1.02);
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(6, 12, 24, 0.92) 0%, rgba(6, 12, 24, 0.74) 42%, rgba(6, 12, 24, 0.2) 100%),
    linear-gradient(0deg, rgba(6, 12, 24, 0.44), rgba(6, 12, 24, 0.1));
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 68px;
}

.eyebrow {
  margin-bottom: 14px;
  color: #aee8ff;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

.eyebrow.dark {
  color: var(--brand);
}

.hero-section h1 {
  margin: 0;
  font-size: clamp(3.4rem, 8vw, 6.5rem);
  line-height: 0.98;
  font-weight: 900;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 620px;
  margin: 26px 0 32px;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  overflow-wrap: anywhere;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  margin-top: 34px;
  color: rgba(255, 255, 255, 0.82);
  font-weight: 700;
}

.trust-row span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.section-pad {
  padding: 92px 0;
}

.stats-band {
  background: var(--deep);
  color: #fff;
  padding: 34px 0;
}

.metric {
  min-height: 96px;
  padding: 18px 0;
  border-right: 1px solid rgba(255, 255, 255, 0.16);
}

.col-lg-3:last-child .metric {
  border-right: 0;
}

.metric strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1.8rem;
  line-height: 1.2;
}

.metric span {
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.95rem;
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 44px;
  text-align: center;
}

.section-heading h2,
.contact-section h2,
.solution-section h2 {
  margin-bottom: 16px;
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: 0;
}

.section-heading p,
.section-text {
  color: var(--muted);
  font-size: 1.05rem;
}

.service-card,
.feature-panel,
.contact-card,
.solution-item {
  height: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.service-card {
  padding: 32px 28px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(15, 107, 255, 0.28);
  box-shadow: 0 18px 50px rgba(18, 24, 32, 0.1);
}

.service-card i,
.feature-panel i {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 24px;
  border-radius: 8px;
  color: var(--brand);
  background: #eaf2ff;
  font-size: 1.35rem;
}

.service-card h3,
.feature-panel h3,
.solution-item h3 {
  margin-bottom: 12px;
  font-size: 1.18rem;
  font-weight: 850;
}

.service-card p,
.feature-panel p,
.solution-item p {
  margin: 0;
  color: var(--muted);
}

.solution-section {
  background: var(--paper);
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.solution-item {
  padding: 28px;
}

.solution-item span {
  display: inline-block;
  margin-bottom: 28px;
  color: var(--accent);
  font-weight: 900;
}

.feature-panel {
  padding: 36px 32px;
}

.dark-panel {
  color: #fff;
  background: var(--deep);
  border-color: var(--deep);
}

.dark-panel p {
  color: rgba(255, 255, 255, 0.72);
}

.dark-panel i {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.process-band {
  color: #fff;
  background: linear-gradient(135deg, #0b1220 0%, #12304a 55%, #0b5f66 100%);
}

.section-heading.light p {
  color: rgba(255, 255, 255, 0.72);
}

.process-line {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.process-line > div {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.process-line span {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 24px;
  border-radius: 50%;
  color: #06101f;
  background: #fff;
  font-weight: 900;
}

.process-line strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.12rem;
}

.process-line p {
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
}

.contact-section {
  background:
    linear-gradient(180deg, rgba(247, 249, 251, 0.74), #fff),
    radial-gradient(circle at 80% 10%, rgba(0, 166, 166, 0.16), transparent 32%);
}

.contact-card {
  padding: 34px;
  box-shadow: 0 20px 70px rgba(18, 24, 32, 0.1);
}

.contact-row {
  display: flex;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.contact-row:first-child {
  padding-top: 0;
}

.contact-row:last-of-type {
  margin-bottom: 26px;
}

.contact-row i {
  flex: 0 0 auto;
  color: var(--brand);
  font-size: 1.4rem;
}

.contact-row span {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
}

.contact-row strong {
  display: block;
  color: var(--ink);
  font-size: 1.05rem;
}

.site-footer {
  color: rgba(255, 255, 255, 0.72);
  background: #080d16;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 24px 0;
  font-size: 0.94rem;
}

.footer-inner a {
  color: rgba(255, 255, 255, 0.72);
}

.footer-inner a:hover {
  color: #fff;
}

@media (max-width: 991.98px) {
  .navbar-toggler {
    display: block;
    margin-left: auto;
    position: fixed;
    top: 13px;
    right: 14px;
    z-index: 1040;
    background: #fff;
  }

  .navbar-collapse {
    padding: 18px 0;
  }

  .hero-section {
    min-height: 680px;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(6, 12, 24, 0.92) 0%, rgba(6, 12, 24, 0.78) 100%),
      linear-gradient(0deg, rgba(6, 12, 24, 0.38), rgba(6, 12, 24, 0.08));
  }

  .metric {
    border-right: 0;
  }

  .solution-grid,
  .process-line {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 575.98px) {
  .section-pad {
    padding: 66px 0;
  }

  .hero-section {
    min-height: 640px;
  }

  .hero-section h1 {
    font-size: 3.25rem;
  }

  .eyebrow {
    font-size: 0.74rem;
    letter-spacing: 0.08em;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .service-card,
  .feature-panel,
  .contact-card,
  .solution-item,
  .process-line > div {
    padding: 24px;
  }

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