:root {
  --bg: #ffffff;
  --bg2: #eaf2ff;
  --text: #122041;
  --muted: #5a6785;
  --white: #fff;
  --line: #d4e1fb;
  --card: #ffffff;
  --accent: #2f63e4;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--text);
  background: #f5f8ff;
  line-height: 1.65;
}

.container {
  width: min(1140px, 92%);
  margin: 0 auto;
}

.hero {
  position: relative;
  overflow: hidden;
  color: var(--text);
  background: linear-gradient(135deg, var(--bg) 0%, #eef4ff 55%, #e3edff 100%);
  border-bottom: 1px solid #d7e3ff;
  padding-bottom: 64px;
}

.hero-bg-shape {
  position: absolute;
  inset: auto -120px -120px auto;
  width: 520px;
  height: 520px;
  background: linear-gradient(145deg, rgba(61, 111, 229, 0.2), rgba(61, 111, 229, 0.06));
  border: 1px solid rgba(61, 111, 229, 0.18);
  transform: rotate(35deg);
  border-radius: 80px;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.logo-mark {
  width: 42px;
  height: 42px;
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 6px 12px rgba(20, 53, 130, 0.2));
}

.logo-text {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.08;
}

.logo-text strong {
  font-size: 1.05rem;
  letter-spacing: 0.5px;
  color: #1b3475;
}

.logo-text small {
  font-size: 0.64rem;
  letter-spacing: 1.2px;
  color: #50639b;
  margin-top: 2px;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 860px;
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
  border: 1px solid #d4e0fb;
  border-radius: 22px;
  padding: 30px;
  box-shadow: 0 18px 36px rgba(18, 46, 113, 0.11);
}

.eyebrow {
  margin: 0;
  color: #2d57c8;
  font-size: 1.8rem;
  font-weight: 700;
}

h1 {
  margin: 8px 0 14px;
  font-size: clamp(2.8rem, 8vw, 5rem);
  line-height: 1.1;
  color: #101f46;
}

.hero-list {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px 16px;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
}

.hero-list li::before {
  content: "✔";
  margin-right: 8px;
  color: #2d5ad2;
}

.btn {
  text-decoration: none;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  border-radius: 999px;
  font-weight: 700;
  transition: 0.2s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  padding: 14px 36px;
  box-shadow: 0 10px 20px rgba(43, 87, 201, 0.25);
}

.btn-primary:hover {
  background: #2758d1;
}

.btn-outline {
  border: 1px solid #b7caf8;
  color: #2858d4;
  background: rgba(255, 255, 255, 0.78);
  padding: 10px 18px;
}

.btn-outline:hover {
  border-color: #2858d4;
  background: #2858d4;
  color: #fff;
}

.section {
  padding: 68px 0;
}

.trust-strip {
  margin-top: -34px;
  position: relative;
  z-index: 2;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 14px 30px rgba(20, 46, 110, 0.1);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  overflow: hidden;
}

.trust-strip article {
  padding: 22px 18px;
  border-right: 1px solid #e8efff;
}

.trust-strip article:last-child {
  border-right: none;
}

.trust-strip h3 {
  margin: 0 0 8px;
  color: #2857d0;
}

.trust-strip p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.trust-strip .quote {
  background: linear-gradient(155deg, #3366e4, #4d7bf0);
}

.trust-strip .quote h3,
.trust-strip .quote p {
  color: #fff;
}

.section h2 {
  margin-top: 0;
  margin-bottom: 22px;
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  color: #1b3270;
}



.reasons {
  background: linear-gradient(180deg, #f6f9ff 0%, #eef4ff 100%);
  color: var(--text);
}

.reasons h2 {
  text-align: center;
  color: #2449ad;
  margin-bottom: 26px;
}

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

.reason-card {
  background: #ffffff;
  border: 1px solid #d5e2ff;
  border-radius: 14px;
  padding: 20px 22px;
  box-shadow: 0 9px 22px rgba(31, 66, 147, 0.08);
}

.reason-card h3 {
  margin: 0 0 10px;
  color: #2f5fd4;
  font-size: 1.72rem;
  line-height: 1.1;
}

.reason-card ul {
  margin: 0;
  padding-left: 20px;
}

.reason-card li {
  margin: 6px 0;
  color: #4d608d;
}

.reason-card li::marker {
  color: #4f80ff;
}


.cta {
  background: linear-gradient(135deg, #244db7 0%, #1a3f98 100%);
  color: #fff;
}

.cta-layout {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 28px;
}

.cta ul {
  margin: 12px 0 0;
  padding-left: 18px;
}

.lead-contact {
  background: #fff;
  color: var(--text);
  border-radius: 14px;
  padding: 22px;
}

.lead-contact h3 {
  margin-top: 0;
}

.lead-contact a {
  color: #2f63e4;
  font-weight: 700;
  text-decoration: none;
}

.contact-tip {
  color: var(--muted);
  margin-bottom: 0;
}

.footer {
  background: #102a6a;
  color: #c3d3ff;
  text-align: center;
  padding: 16px 0;
}

@media (max-width: 1020px) {
  .trust-strip {
    grid-template-columns: 1fr 1fr;
  }

  .trust-strip article {
    border-right: none;
    border-bottom: 1px solid #edf2ff;
  }

  .reasons-grid {
    grid-template-columns: 1fr;
  }

  .product-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  .logo-text small {
    display: none;
  }

  .logo-mark {
    width: 36px;
    height: 36px;
  }

  .hero-list {
    grid-template-columns: 1fr 1fr;
  }

  .cta-layout,
  .trust-strip,
  .product-grid,
  .reasons-grid {
    grid-template-columns: 1fr;
  }

  .eyebrow {
    font-size: 1.3rem;
  }
}


.solution-banner {
  background: linear-gradient(180deg, #3366e4 0%, #2a57cc 70%, #2248ab 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.solution-banner::before {
  content: "";
  position: absolute;
  inset: auto -5% -110px;
  height: 220px;
  background:
    radial-gradient(circle at 10% 30%, rgba(137, 218, 255, 0.95) 1.5px, transparent 2px),
    radial-gradient(circle at 30% 75%, rgba(137, 218, 255, 0.75) 1.5px, transparent 2px),
    radial-gradient(circle at 60% 25%, rgba(137, 218, 255, 0.9) 1.7px, transparent 2.4px),
    radial-gradient(circle at 85% 65%, rgba(137, 218, 255, 0.7) 1.5px, transparent 2px);
  background-size: 180px 110px, 220px 130px, 200px 120px, 240px 150px;
  opacity: 0.85;
  transform: perspective(340px) rotateX(58deg);
}

.solution-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.solution-inner h2 {
  color: #fff;
  margin-bottom: 12px;
}

.solution-inner p {
  max-width: 980px;
  margin: 0 auto 26px;
  color: #e3ecff;
  font-size: 1.08rem;
}

.btn-ghost {
  border: 2px solid rgba(255, 255, 255, 0.88);
  color: #fff;
  padding: 12px 42px;
  border-radius: 10px;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
}


.product-center {
  background: #f5f8ff;
}

.section-intro {
  margin-top: -8px;
  margin-bottom: 24px;
  color: var(--muted);
  max-width: 900px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.product-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  display: grid;
  gap: 8px;
  min-height: 165px;
}

.product-card h3 {
  margin: 0;
  font-size: 1.07rem;
  color: #1f58dc;
}

.product-card p {
  margin: 0;
  font-weight: 700;
  color: #254eb7;
}

.product-card span {
  color: var(--muted);
  font-size: 0.92rem;
}