/* OpenMeme — v3 主样式 + 动效 */
:root {
  --bg: #0a0e1a;
  --bg-card: #131826;
  --bg-card-hover: #1a2034;
  --border: #1f2a44;
  --text: #e8ecf4;
  --text-dim: #8a96b0;
  --gold: #f0b90b;
  --gold-bright: #ffd54f;
  --green: #2ebd85;
  --red: #f6465d;
  --blue: #4f9cf9;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* 动态背景渐变 */
.bg-gradient {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 20% 30%, rgba(240, 185, 11, 0.10) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(79, 156, 249, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(46, 189, 133, 0.06) 0%, transparent 40%);
  animation: bgShift 20s ease-in-out infinite;
}
@keyframes bgShift {
  0%, 100% { transform: scale(1) rotate(0deg); }
  50% { transform: scale(1.1) rotate(3deg); }
}

/* 粒子背景 canvas */
#particles {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* === Header === */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  transition: all 0.2s;
}
.site-header.scrolled { background: rgba(10, 14, 26, 0.95); box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3); }

.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 24px; }

.brand { display: flex; align-items: baseline; gap: 6px; text-decoration: none; color: var(--text); font-weight: 700; font-size: 22px; }
.logo { color: var(--gold); font-size: 24px; animation: pulse 3s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.1); } }

.brand-tag { color: var(--text-dim); font-weight: 400; font-size: 14px; }

.nav { display: flex; gap: 16px; align-items: center; }
.nav a, .nav button { color: var(--text-dim); text-decoration: none; font-size: 13px; background: none; border: none; cursor: pointer; padding: 0; transition: color 0.2s; }
.nav a:hover, .nav button:hover { color: var(--gold); }
.nav .x-link { color: var(--gold); border: 1px solid var(--border); padding: 6px 12px; border-radius: 6px; }
.nav .x-link:hover { background: var(--gold); color: var(--bg); }

.lang-btn { font-size: 14px; padding: 6px 10px; border: 1px solid var(--border) !important; border-radius: 6px; color: var(--text) !important; }
.lang-btn:hover { background: var(--bg-card); color: var(--gold) !important; }

/* === Hero === */
.hero {
  padding: 80px 0 50px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero-bg-glow {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(240, 185, 11, 0.15) 0%, transparent 60%);
  pointer-events: none;
  animation: glowPulse 4s ease-in-out infinite;
}
@keyframes glowPulse { 0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1); } 50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); } }

.hero .container { position: relative; z-index: 1; }
.hero-title { font-size: 44px; font-weight: 800; margin-bottom: 16px; letter-spacing: -0.5px; animation: fadeUp 0.6s ease-out; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.accent { background: linear-gradient(135deg, var(--gold) 0%, var(--gold-bright) 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

.hero-sub { color: var(--text-dim); font-size: 17px; margin-bottom: 24px; animation: fadeUp 0.6s ease-out 0.1s both; }
.hero-meta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; animation: fadeUp 0.6s ease-out 0.2s both; }
.badge { background: var(--bg-card); border: 1px solid var(--border); padding: 6px 14px; border-radius: 20px; font-size: 13px; color: var(--text-dim); }
.badge.live { color: var(--green); border-color: var(--green); background: rgba(46, 189, 133, 0.1); }
.badge.live::before { content: ''; width: 8px; height: 8px; background: var(--green); border-radius: 50%; display: inline-block; margin-right: 6px; animation: blink 2s ease-in-out infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.badge.risk { color: var(--gold); border-color: var(--gold); background: rgba(240, 185, 11, 0.1); }

/* === Stats Bar === */
.stats-bar { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; padding: 24px 0; border-bottom: 1px solid var(--border); }
.stat-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; text-align: center; transition: all 0.2s; }
.stat-card:hover { border-color: var(--gold); transform: translateY(-2px); }
.stat-card .num { font-size: 22px; font-weight: 800; color: var(--gold); margin-bottom: 2px; font-variant-numeric: tabular-nums; }
.stat-card .label { font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; }

/* === Section === */
.section { padding: 50px 0; border-bottom: 1px solid var(--border); }
.section:last-of-type { border-bottom: none; }
.section-head { margin-bottom: 28px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.section-head h2 { font-size: 26px; font-weight: 700; }
.section-sub { color: var(--text-dim); font-size: 13px; margin-top: 4px; }
.section-updated { font-size: 11px; color: var(--text-dim); background: var(--bg-card); border: 1px solid var(--border); padding: 4px 10px; border-radius: 12px; }

/* === Loading / Empty / Error === */
.skeleton { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; min-height: 200px; position: relative; overflow: hidden; }
.skeleton::after { content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%; background: linear-gradient(90deg, transparent 0%, rgba(240, 185, 11, 0.06) 50%, transparent 100%); animation: shimmer 1.5s infinite; }
@keyframes shimmer { to { left: 100%; } }

.loading, .empty { text-align: center; padding: 60px 20px; color: var(--text-dim); font-size: 14px; }
.empty-icon { font-size: 48px; margin-bottom: 16px; opacity: 0.5; }

.error { text-align: center; padding: 60px 20px; color: var(--red); background: rgba(246, 70, 93, 0.05); border: 1px solid rgba(246, 70, 93, 0.2); border-radius: 12px; font-size: 14px; }

/* === Disclaimer === */
.disclaimer { background: var(--bg-card); border: 1px solid var(--border); border-left: 4px solid var(--gold); border-radius: 12px; padding: 28px; margin: 50px 0; }
.disclaimer h3 { color: var(--gold); font-size: 20px; margin-bottom: 12px; }
.disclaimer p, .disclaimer li { color: var(--text-dim); font-size: 14px; margin-bottom: 6px; }
.disclaimer ul { margin-left: 20px; }
.disclaimer strong { color: var(--text); }

/* === Footer === */
.site-footer { padding: 30px 0; text-align: center; color: var(--text-dim); font-size: 13px; border-top: 1px solid var(--border); }
.site-footer a { color: var(--gold); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.footer-social { display: flex; gap: 16px; justify-content: center; margin-bottom: 12px; font-size: 14px; }

/* === Back to top === */
.back-to-top { position: fixed; bottom: 30px; right: 30px; width: 48px; height: 48px; background: var(--gold); color: var(--bg); border: none; border-radius: 50%; font-size: 20px; cursor: pointer; opacity: 0; visibility: hidden; transition: all 0.3s; box-shadow: 0 4px 12px rgba(240, 185, 11, 0.3); z-index: 50; }
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { transform: translateY(-3px); }

/* === 移动端 === */
@media (max-width: 768px) {
  .hero-title { font-size: 26px; }
  .section-head h2 { font-size: 20px; }
  .nav { display: none; }
  .header-inner { padding: 12px 16px; }
  .container { padding: 0 16px; }
  .section { padding: 30px 0; }
  .hero { padding: 50px 0 30px; }
  .back-to-top { bottom: 20px; right: 20px; }
  .stats-bar { grid-template-columns: repeat(3, 1fr); }
}