:root {
  --bg: #0d161a;
  --panel: #111f24;
  --panel-2: #0f2a33;
  --text: #eff5f3;
  --muted: #91aaa6;
  --line: rgba(160, 205, 196, 0.22);
  --accent: #ffc85f;
  --accent-2: #49f0d8;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Outfit", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 85% 0%, #113949 0%, var(--bg) 50%) fixed;
  min-width: 1180px;
  letter-spacing: 0.02em;
}

.mesh-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  opacity: 0.16;
  pointer-events: none;
  z-index: -1;
}

.shell {
  width: min(1240px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(10, 18, 21, 0.8);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 82px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}

.brand-dot {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 26px rgba(255, 200, 95, 0.55);
}

.brand-cn {
  font-family: "Noto Serif SC", serif;
  font-size: 1.45rem;
  font-weight: 800;
}

.brand-en {
  color: var(--muted);
  font-size: 0.75rem;
  margin-top: 2px;
}

.main-nav {
  display: flex;
  gap: 30px;
}

.main-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.25s ease;
}

.main-nav a:hover {
  color: var(--text);
}

.hero {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 30px;
  padding: 88px 0 64px;
}

.kicker {
  display: inline-block;
  margin: 0 0 18px;
  color: #90d6cb;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.84rem;
  font-weight: 600;
}

.hero-copy h1 {
  margin: 0 0 20px;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(2.45rem, 4.2vw, 4rem);
  line-height: 1.18;
  letter-spacing: 0.015em;
}

.hero-copy h1 span {
  color: var(--accent);
}

.intro {
  margin: 0;
  max-width: 680px;
  color: #c5d7d3;
  line-height: 1.9;
  font-size: 1.05rem;
}

.cta-row {
  display: flex;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    color 0.2s ease,
    background 0.2s ease;
}

.btn.primary {
  color: #10171a;
  background: linear-gradient(130deg, var(--accent) 0%, #ffde95 100%);
  box-shadow: 0 12px 30px rgba(255, 200, 95, 0.35);
}

.btn.ghost {
  color: var(--text);
  border: 1px solid var(--line);
  background: rgba(11, 30, 35, 0.75);
}

.btn:hover {
  transform: translateY(-2px);
}

.hero-panel {
  background: linear-gradient(165deg, rgba(19, 35, 42, 0.94), rgba(10, 22, 29, 0.94));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 22px 22px;
  box-shadow: var(--shadow);
}

.panel-title {
  font-weight: 700;
  color: #c3fff0;
  margin-bottom: 12px;
}

.meta-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.meta-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.meta-list li:last-child {
  border-bottom: 0;
}

.meta-list span {
  color: var(--muted);
  font-size: 0.86rem;
}

.meta-list strong {
  font-size: 1rem;
}

.meta-note {
  margin: 12px 0 0;
  color: #8fa8a3;
  font-size: 0.84rem;
  line-height: 1.55;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 6px auto 74px;
}

.stats article {
  padding: 24px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(11, 30, 35, 0.74);
}

.stat-num {
  font-size: 2.25rem;
  font-weight: 800;
  color: #d6fff6;
  margin-bottom: 10px;
}

.stats p {
  margin: 0;
  color: var(--muted);
}

section {
  margin-bottom: 86px;
}

.section-head h2 {
  font-family: "Noto Serif SC", serif;
  margin: 0;
  font-size: clamp(1.9rem, 2.8vw, 2.6rem);
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 24px;
  align-items: center;
}

.card {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(170deg, rgba(18, 42, 49, 0.88), rgba(11, 26, 33, 0.9));
  box-shadow: var(--shadow);
}

.prose {
  padding: 26px 26px 22px;
}

.prose p {
  margin: 0 0 14px;
  color: #c1d2cf;
  line-height: 1.9;
}

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

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 22px;
}

.feature {
  padding: 22px 20px;
}

.feature h3 {
  margin: 0 0 8px;
  font-size: 1.3rem;
}

.feature p {
  margin: 0;
  line-height: 1.75;
  color: #b8cac6;
}

.process-list {
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.process-list li {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(10, 28, 34, 0.82);
  padding: 18px 16px;
}

.process-list span {
  color: var(--accent-2);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.process-list h3 {
  margin: 8px 0 8px;
  font-size: 1.1rem;
}

.process-list p {
  margin: 0;
  color: #b2c8c3;
  line-height: 1.7;
  font-size: 0.95rem;
}

.contact {
  margin-bottom: 64px;
}

.contact-card {
  margin-top: 20px;
  border-radius: var(--radius);
  padding: 28px 28px 24px;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 100% -10%, rgba(255, 200, 95, 0.2), transparent 43%),
    radial-gradient(circle at 10% 120%, rgba(73, 240, 216, 0.18), transparent 46%),
    rgba(12, 32, 38, 0.86);
}

.contact-card > p {
  margin: 0 0 18px;
  line-height: 1.85;
  color: #c5d8d4;
  max-width: 820px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(320px, 1fr));
  gap: 12px 18px;
  margin-bottom: 20px;
}

.contact-grid p {
  margin: 0;
  color: #d8e6e3;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 26px 0;
}

.site-footer p {
  margin: 0;
  color: #8ea7a3;
  font-size: 0.9rem;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.55s ease,
    transform 0.55s ease;
}

.reveal.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1260px) {
  body {
    min-width: 1024px;
  }

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

@media (max-width: 1024px) {
  body {
    min-width: 0;
  }

  .hero,
  .split,
  .grid-3,
  .stats,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .nav-wrap {
    height: auto;
    padding: 16px 0;
    flex-direction: column;
    gap: 14px;
  }

  .main-nav {
    gap: 18px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero {
    padding-top: 56px;
  }
}