:root {
  --bg: #050914;
  --bg-soft: #0b152d;
  --text: #f3f7ff;
  --text-soft: #9eb0d9;
  --primary: #5a7dff;
  --primary-2: #27d7ff;
  --line: rgba(129, 157, 227, 0.24);
  --card: rgba(15, 25, 50, 0.62);
  --shadow: 0 28px 70px rgba(2, 6, 19, 0.55);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
}

.bg-layer {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 15% -15%, rgba(86, 116, 255, 0.36) 0%, transparent 42%),
    radial-gradient(circle at 90% 20%, rgba(23, 197, 255, 0.25) 0%, transparent 38%),
    linear-gradient(180deg, #071026 0%, #050914 65%);
}

.aurora {
  position: fixed;
  width: 36vw;
  height: 36vw;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.25;
  z-index: -1;
}

.aurora-a {
  top: 8vh;
  right: -9vw;
  background: #3b67ff;
}

.aurora-b {
  bottom: 0;
  left: -10vw;
  background: #11d1ff;
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.section {
  padding: 96px 0;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(14px);
  background: rgba(5, 10, 22, 0.55);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  z-index: 100;
}

.nav-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.02em;
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(120deg, var(--primary), var(--primary-2));
  box-shadow: 0 0 14px var(--primary-2);
}

.main-nav {
  display: flex;
  gap: 24px;
}

.main-nav a {
  color: var(--text-soft);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease, opacity 0.2s ease;
  opacity: 0.92;
}

.main-nav a:hover {
  color: #dbe6ff;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 34px;
  align-items: center;
}

.tag {
  display: inline-flex;
  border: 1px solid rgba(124, 221, 255, 0.45);
  color: #ccf5ff;
  background: rgba(15, 36, 76, 0.6);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.12em;
}

h1 {
  margin: 18px 0 14px;
  font-size: clamp(36px, 5.2vw, 62px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

h2 {
  margin: 0 0 16px;
  font-size: clamp(26px, 3vw, 36px);
}

.subtext,
.lead,
p {
  color: var(--text-soft);
  line-height: 1.85;
}

.hero-highlight {
  margin-top: 14px;
  font-size: 18px;
  color: #dce8ff;
  font-weight: 600;
}

.hero-actions {
  margin-top: 26px;
  display: flex;
  gap: 14px;
}

.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  text-decoration: none;
  font-weight: 600;
  border-radius: 14px;
  padding: 12px 22px;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.btn-primary {
  color: #fff;
  background: linear-gradient(125deg, #5b7fff 0%, #3154d9 100%);
  box-shadow: 0 14px 34px rgba(45, 81, 215, 0.45);
}

.btn-secondary {
  color: #dce7ff;
  border-color: rgba(174, 202, 255, 0.45);
  background: rgba(17, 30, 60, 0.65);
}

.hero-panel {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(150deg, rgba(23, 39, 77, 0.85), rgba(10, 18, 37, 0.86));
  box-shadow: var(--shadow);
  padding: 20px;
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(144, 198, 255, 0.5), rgba(52, 79, 181, 0.1));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

.panel-header {
  display: flex;
  gap: 7px;
  margin-bottom: 18px;
}

.panel-header span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(199, 217, 255, 0.5);
}

.panel-header span:nth-child(1) {
  background: #57d3ff;
}

.panel-header span:nth-child(2) {
  background: #82a8ff;
}

.panel-header span:nth-child(3) {
  background: #c9dbff;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.stat {
  padding: 18px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(137, 163, 233, 0.24);
  min-height: 118px;
}

.stat span {
  font-size: 31px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #d9e6ff;
}

.stat p {
  margin: 8px 0 0;
}

.feature-grid,
.solution-grid,
.case-grid {
  display: grid;
  gap: 16px;
}

.value-banner {
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px;
  background: linear-gradient(130deg, rgba(27, 44, 84, 0.78), rgba(12, 21, 47, 0.9));
}

.value-kicker {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: #91beff;
}

.impact-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.impact-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  background: rgba(14, 24, 50, 0.7);
}

.impact-card h3 {
  margin-top: 0;
}

.feature-grid {
  grid-template-columns: repeat(3, 1fr);
  margin-top: 28px;
}

.feature,
.solution-grid article,
.case {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  background: var(--card);
}

.feature h3,
.solution-grid h3 {
  margin-top: 0;
}

.dark {
  background: linear-gradient(180deg, rgba(9, 15, 34, 0.1), rgba(8, 16, 38, 0.6));
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.card-index {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: #8fb5ff;
}

.case-grid {
  margin-top: 24px;
  grid-template-columns: repeat(3, 1fr);
}

.case {
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 500;
  color: #d8e5ff;
  text-decoration: none;
  transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}

.case:hover {
  transform: translateY(-2px);
  border-color: rgba(132, 177, 255, 0.45);
  background: rgba(20, 35, 73, 0.85);
}

.case span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 9px;
  font-size: 12px;
  font-weight: 700;
  color: #d3e5ff;
  border: 1px solid rgba(163, 194, 255, 0.34);
  background: rgba(17, 29, 58, 0.8);
}

.contact {
  padding-top: 56px;
}

.result-grid {
  margin-top: 16px;
  display: grid;
  gap: 14px;
}

.result-item {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  background: rgba(13, 25, 51, 0.7);
  display: flex;
  gap: 16px;
}

.result-item span {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  border: 1px solid rgba(161, 189, 255, 0.44);
  background: rgba(18, 33, 65, 0.85);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: #d8e7ff;
  flex: none;
}

.result-item h3 {
  margin: 0 0 6px;
}

.result-item p {
  margin: 0;
}

.contact-wrap {
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 34px;
  background: linear-gradient(120deg, rgba(24, 48, 95, 0.86), rgba(7, 16, 41, 0.95));
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}

.contact-phone {
  margin-top: 12px;
  margin-bottom: 0;
  font-size: 17px;
  font-weight: 600;
  color: #dce8ff;
}

.contact-phone a {
  color: #a8c6ff;
  text-decoration: none;
}

.contact-phone a:hover {
  color: #d4e4ff;
  text-decoration: underline;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.footer-phone {
  margin: 0;
  font-size: 13px;
  color: #8fa4d4;
}

.footer-phone a {
  color: #a8c6ff;
  text-decoration: none;
}

.footer-phone a:hover {
  text-decoration: underline;
}

.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0 28px;
}

.site-footer p {
  margin: 0;
  font-size: 13px;
  color: #8fa4d4;
}

@media (max-width: 980px) {
  .main-nav {
    display: none;
  }

  .hero-grid,
  .feature-grid,
  .solution-grid,
  .case-grid,
  .impact-grid {
    grid-template-columns: 1fr;
  }

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

  .contact-wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  .contact-actions {
    justify-content: flex-start;
    width: 100%;
  }
}