@font-face {
  font-family: "Ma Shan Zheng";
  src: url("/fonts/ma-shan-zheng-subset.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

:root {
  --bg: #090b09;
  --panel: rgba(13, 15, 14, .78);
  --panel-light: rgba(22, 25, 23, .9);
  --gold: #c89650;
  --gold-soft: rgba(200, 150, 80, .2);
  --text: #e8e1d3;
  --muted: rgba(232, 225, 211, .56);
  --red: #a44e43;
  --violet: #7e9d95;
  --line: rgba(232, 225, 211, .14);
  --font-body: "DengXian", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  --font-display: "Ma Shan Zheng", "STKaiti", "KaiTi", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background:
    radial-gradient(circle at 18% 16%, rgba(200, 150, 80, .12), transparent 28%),
    radial-gradient(circle at 82% 8%, rgba(126, 157, 149, .12), transparent 30%),
    linear-gradient(135deg, #070907 0%, #111511 45%, #070807 100%);
  color: var(--text);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(200, 150, 80, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200, 150, 80, .04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at center, black 0%, transparent 78%);
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--gold);
  font-weight: 400;
}

.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 40px;
  background: linear-gradient(180deg, rgba(2,8,20,0.9) 0%, rgba(2,8,20,.24) 70%, transparent 100%);
  border-bottom: 1px solid rgba(0,229,255,.08);
  backdrop-filter: blur(14px);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 24px; font-weight: 700; color: var(--gold);
  letter-spacing: 8px; text-shadow: 0 0 30px rgba(0,229,255,0.3);
  text-decoration: none;
}

.nav-links { display: flex; gap: 32px; }
.nav-links a {
  color: rgba(255,255,255,0.5); text-decoration: none; font-size: 14px;
  letter-spacing: 3px; transition: color 0.3s;
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active { color: var(--gold); }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  backdrop-filter: blur(18px);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.38), inset 0 0 42px rgba(0,229,255,.035);
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 255, 0.45);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55);
}

.btn {
  padding: 10px 24px; border-radius: 8px; border: none;
  font-size: 14px; font-weight: 500; cursor: pointer;
  transition: all 0.3s; letter-spacing: 2px;
}
.btn-primary { background: var(--gold); color: var(--bg); }
.btn-primary:hover { background: #7df4ff; box-shadow: 0 4px 24px rgba(0,229,255,0.35); }
.btn-ghost {
  background: transparent; color: var(--gold);
  border: 1px solid rgba(0,229,255,0.3);
}
.btn-ghost:hover { background: rgba(0,229,255,0.1); border-color: var(--gold); }

@media (max-width: 768px) {
  .nav { padding: 15px 20px; }
  .nav-links {
    display: flex;
    max-width: 58vw;
    overflow-x: auto;
    gap: 18px;
    scrollbar-width: none;
  }
  .nav-links::-webkit-scrollbar { display: none; }
}