:root {
  --bg: #0b0d10;
  --card: #151a21;
  --text: #e9edf1;
  --muted: #b6b0b0;
  --brand: #7dd3fc;
  --accent: #a78bfa;
  --border: #243041;
  --link: #f3aa22;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  color: var(--text);
  background: radial-gradient(1000px 600px at 70% -10%, rgba(247, 240, 240, 0.12), transparent 40%), var(--bg);
  line-height: 1.6;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: min(1100px, 92%); margin: 0 auto; }
.row { display: flex; align-items: center; gap: 12px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

.site-header {
  position: sticky; top: 0; z-index: 10;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
  background: rgba(11,13,16,0.65);
}
.brand { font-weight: 700; color: var(--text); }
.nav { margin-left: auto; display: flex; gap: 14px; flex-wrap: wrap; }
.nav a { padding: 8px 10px; border-radius: 10px; }
.nav a:hover { background: rgba(255,255,255,0.05); text-decoration: none; }
.hamburger { display: none; padding: 8px 10px; border: 1px solid var(--border); background: transparent; color: var(--text); border-radius: 10px; }
.ghost { padding: 8px 10px; border: 1px solid var(--border); background: transparent; color: var(--text); border-radius: 10px; }

.hero {
  padding: 56px 0 24px;
}
.hero h1 { font-size: clamp(28px, 5vw, 44px); margin: 0 0 8px; }
.hero p { color: var(--muted); margin: 0; }
.badges { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.badge { font-size: 12px; padding: 6px 10px; border: 1px solid var(--border); border-radius: 999px; color: var(--muted); }

.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
}
.card h3 { margin-top: 0; }
.card p { color: var(--muted); }
.card li { color: var(--muted); }

.kicker { color: var(--accent); letter-spacing: .12em; text-transform: uppercase; font-size: 12px; }
.section { padding: 28px 0; }
.section h2 { font-size: 24px; margin: 0 0 12px; }

.table { width: 100%; border-collapse: collapse; font-size: 14px; margin-bottom: 32px;}
.table th, .table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
.table th { text-align: left; color: var(--muted); font-weight: 600; }

.site-footer { border-top: 1px solid var(--border); margin-top: 40px; padding: 24px 0; }
.site-footer h4 { margin: 0 0 8px; }
.site-footer p, .site-footer li { color: var(--muted); margin: 6px 0; }
.site-footer ul { padding: 0; list-style: none; }

.cta { display: inline-flex; align-items: center; gap: 8px; padding: 10px 14px; border-radius: 12px; border: 1px solid var(--border); background: var(--card); color: var(--text); }
.cta:hover { filter: brightness(1.08); text-decoration: none; }

.hero-cta { display: flex; gap: 12px; margin-top: 16px; flex-wrap: wrap; }

.responsive-video { aspect-ratio: 16 / 9; width: 100%; border-radius: 16px; border: 1px solid var(--border); overflow: hidden; }

.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.gallery img, .gallery video { width: 100%; height: auto; object-fit: contain; border-radius: 12px; border: 1px solid var(--border); }
.gallery_1 img, .gallery_1 video { width: 100%; height: 2*auto; object-fit: contain; border-radius: 12px; border: 1px solid var(--border); }

blockquote {
  margin: 0; padding: 14px 16px; border-left: 3px solid var(--accent); background: rgba(167,139,250,0.07); border-radius: 8px;
}

.tag { display: inline-block; padding: 2px 8px; font-size: 12px; border: 1px solid var(--border); border-radius: 999px; color: var(--muted); }

/* Mobile */
@media (max-width: 860px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .nav { display: none; }
  .nav.open { display: flex; flex-direction: column; width: 100%; margin-top: 10px; }
  .hamburger { display: inline-block; }
}

body[data-theme="light"] {
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --brand: #0891b2;
  --accent: #6d28d9;
  --border: #e2e8f0;
  --link: #ff9595;
  background: radial-gradient(1000px 600px at 70% -10%, rgba(2,132,199,0.08), transparent 40%), var(--bg);
}