:root {
  --bg: #0f1c24;
  --bg-elevated: #162832;
  --bg-soft: #1c3340;
  --text: #e8eef2;
  --text-muted: #9eb0ba;
  --accent: #c4a35a;
  --accent-soft: rgba(196, 163, 90, 0.18);
  --line: rgba(232, 238, 242, 0.12);
  --font-display: "Noto Serif SC", "Songti SC", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

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

a:hover {
  color: var(--accent);
}

.container {
  width: min(960px, calc(100% - 2.5rem));
  margin: 0 auto;
}

.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 10;
  padding: 1.25rem 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  padding: 7rem 0 5.5rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(196, 163, 90, 0.22), transparent 55%),
    radial-gradient(ellipse 70% 50% at 15% 80%, rgba(56, 120, 140, 0.28), transparent 50%),
    linear-gradient(160deg, #0b151b 0%, #14303a 45%, #0f1c24 100%);
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(232, 238, 242, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232, 238, 242, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.55), transparent 85%);
}

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

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4.5vw, 2.85rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.04em;
  margin-bottom: 1.25rem;
}

.hero-title {
  max-width: 18em;
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 1rem;
}

.hero-lead {
  max-width: 34em;
  color: var(--text-muted);
  font-size: 1rem;
}

.section {
  padding: 4.5rem 0;
}

.section-alt {
  background: var(--bg-elevated);
  border-block: 1px solid var(--line);
}

.section h2 {
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 0.85rem;
}

.section-lead {
  max-width: 40em;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.info-list {
  list-style: none;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.info-list li {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.label {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.value {
  font-weight: 500;
}

.domain-list {
  list-style: none;
  display: grid;
  gap: 0.85rem;
}

.domain-list a {
  display: block;
  padding: 1.1rem 1.25rem;
  background: var(--accent-soft);
  border: 1px solid rgba(196, 163, 90, 0.28);
  border-radius: 4px;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.domain-list a:hover {
  background: rgba(196, 163, 90, 0.28);
  border-color: rgba(196, 163, 90, 0.5);
  color: var(--text);
}

.site-footer {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--line);
  background: #0b151b;
  text-align: center;
}

.footer-inner {
  display: grid;
  gap: 0.65rem;
}

.footer-name {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.beian {
  font-size: 0.9rem;
}

.beian a {
  color: var(--text-muted);
}

.beian a:hover {
  color: var(--accent);
}

@media (max-width: 640px) {
  .nav {
    display: none;
  }

  .hero {
    align-items: center;
    padding-top: 6rem;
    padding-bottom: 4rem;
  }

  .info-list li {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }
}