*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  color: #f5f6f8;
  background: #0b0e14;
  line-height: 1.75;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  width: 100%;
  display: block;
  border-radius: 18px;
}

.container {
  width: min(1200px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(11, 14, 20, 0.9);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #ff7a18, #af002d 42%, #5f27cd);
  font-weight: 700;
}

.brand-name {
  font-size: 1.05rem;
  font-weight: 700;
}

.brand-tagline {
  font-size: 0.9rem;
  color: #b7bcc7;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.95rem;
}

.site-nav a {
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 80px 0 60px;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.45;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-label {
  letter-spacing: 2px;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: #f8d6b2;
}

h1,
h2,
h3 {
  margin: 0 0 14px;
}

.hero h1 {
  font-size: clamp(2.1rem, 2.8vw + 1.2rem, 3.2rem);
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin: 24px 0;
  flex-wrap: wrap;
}

.btn {
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
}

.btn.primary {
  background: #ff7a18;
  color: #0b0e14;
}

.btn.ghost {
  border-color: #ff7a18;
  color: #ffb171;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  background: rgba(11, 14, 20, 0.6);
  padding: 18px;
  border-radius: 18px;
}

.metric-number {
  display: block;
  font-weight: 700;
  font-size: 1.1rem;
}

.metric-label {
  font-size: 0.85rem;
  color: #c1c6d1;
}

.section {
  padding: 64px 0;
}

.section-alt {
  background: #121722;
}

.section-title {
  margin-bottom: 26px;
}

.section-title p {
  color: #c3c8d4;
}

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  align-items: start;
}

.vision-card {
  background: rgba(255, 255, 255, 0.06);
  padding: 22px;
  border-radius: 18px;
}

.vision-card ul {
  margin: 12px 0 0;
  padding-left: 20px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.card {
  background: rgba(255, 255, 255, 0.06);
  padding: 22px;
  border-radius: 18px;
}

.media-grid {
  display: grid;
  gap: 20px;
}

.media-card {
  display: grid;
  grid-template-columns: minmax(220px, 0.9fr) minmax(220px, 1.1fr);
  gap: 20px;
  align-items: center;
  background: rgba(255, 255, 255, 0.04);
  padding: 20px;
  border-radius: 18px;
}

.section-actions {
  margin-top: 18px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.link {
  color: #ffb171;
  border-bottom: 1px solid transparent;
}

.link:hover {
  border-bottom-color: #ffb171;
}

.timeline {
  display: grid;
  gap: 16px;
}

.timeline article {
  background: rgba(255, 255, 255, 0.05);
  padding: 18px;
  border-radius: 16px;
  border-left: 3px solid #ff7a18;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.case-card {
  background: rgba(255, 255, 255, 0.06);
  padding: 20px;
  border-radius: 16px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.feature-grid article {
  background: rgba(255, 255, 255, 0.05);
  padding: 18px;
  border-radius: 16px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
  align-items: center;
}

.contact-card {
  background: rgba(255, 255, 255, 0.06);
  padding: 20px;
  border-radius: 16px;
}

.site-footer {
  padding: 26px 0;
  background: #090b10;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .media-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .hero-actions {
    flex-direction: column;
  }

  .site-nav {
    gap: 8px;
  }
}