:root {
  --ink: #1a2430;
  --ink-soft: #3d4a5c;
  --paper: #f3efe6;
  --paper-deep: #e7e0d2;
  --line: rgba(26, 36, 48, 0.12);
  --gold: #8a6a3b;
  --gold-bright: #b08a4a;
  --white: #fffdf8;
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 12% -10%, rgba(176, 138, 74, 0.16), transparent 55%),
    radial-gradient(900px 500px at 90% 0%, rgba(61, 74, 92, 0.08), transparent 50%),
    linear-gradient(180deg, #f7f3ea 0%, var(--paper) 40%, #ebe4d6 100%);
  font-family: var(--sans);
  line-height: 1.7;
  min-height: 100vh;
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.45'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

.top, main, .foot { position: relative; z-index: 1; }

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 980px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 0.5rem;
}

.brand {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.04em;
}

.nav { display: flex; align-items: center; gap: 1rem; font-size: 0.92rem; }
.nav a { color: var(--ink-soft); text-decoration: none; }
.nav a:hover { color: var(--ink); }
.nav-cta {
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--line);
  background: rgba(255,253,248,0.7);
  color: var(--ink) !important;
}

.hero {
  max-width: 980px;
  margin: 0 auto;
  padding: clamp(3.5rem, 12vw, 7rem) 1.25rem 3.5rem;
  animation: rise 0.8s ease both;
}

.hero-kicker {
  margin: 0 0 1rem;
  color: var(--gold);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
}

.hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(2.8rem, 10vw, 4.6rem);
  line-height: 1.15;
  letter-spacing: 0.06em;
}

.hero-lead {
  max-width: 34em;
  margin: 1.35rem 0 0;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.7rem 1.2rem;
  text-decoration: none;
  font-size: 0.98rem;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary {
  background: var(--ink);
  color: var(--white);
}
.btn.ghost {
  color: var(--ink);
  border-bottom: 1px solid var(--gold-bright);
  padding-left: 0;
  padding-right: 0;
  border-radius: 0;
}

.band, .services, .compliance, .contact {
  max-width: 980px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem;
  animation: rise 0.9s ease both;
  animation-delay: 0.08s;
}

.band h2, .services h2, .compliance h2, .contact h2 {
  margin: 0 0 1rem;
  font-family: var(--serif);
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.band p, .compliance p {
  margin: 0;
  max-width: 46em;
  color: var(--ink-soft);
}

.service-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.service-list li {
  display: grid;
  grid-template-columns: minmax(7rem, 10rem) 1fr;
  gap: 1rem;
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--line);
}
.service-list strong {
  font-family: var(--serif);
  font-weight: 700;
}
.service-list span { color: var(--ink-soft); }

.compliance {
  background: linear-gradient(90deg, rgba(255,253,248,0.55), rgba(255,253,248,0.2));
  border-block: 1px solid var(--line);
}
.compliance-grid {
  display: grid;
  gap: 1rem;
}
.compliance-grid p { max-width: none; }

.meta { margin: 0; display: grid; gap: 0.85rem; }
.meta > div {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 0.75rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
}
.meta dt { color: var(--gold); font-size: 0.92rem; }
.meta dd { margin: 0; color: var(--ink-soft); }
.meta a { color: var(--ink); }
.beian { font-size: 0.95rem; }

.foot {
  max-width: 980px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}
.foot-note { margin: 0.35rem 0 0; opacity: 0.85; }

@keyframes rise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 640px) {
  .nav a:not(.nav-cta) { display: none; }
  .service-list li { grid-template-columns: 1fr; gap: 0.25rem; }
  .meta > div { grid-template-columns: 1fr; gap: 0.2rem; }
}

@media (prefers-reduced-motion: reduce) {
  .hero, .band, .services, .compliance, .contact { animation: none; }
  .btn { transition: none; }
}