:root {
  --bg: #0d1117;
  --bg-card: #161b22;
  --bg-card-2: #1c2333;
  --accent: #58a6ff;
  --accent-2: #7ee787;
  --accent-3: #f0883e;
  --danger: #f85149;
  --text: #e6edf3;
  --text-dim: #8b949e;
  --border: #30363d;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}
.slide {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px 80px;
  border-bottom: 1px solid var(--border);
}
.slide-header {
  font-size: 14px;
  color: var(--accent);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.slide-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 32px;
  line-height: 1.3;
}
.slide-title .hl { color: var(--accent); }
.slide-subtitle { font-size: 18px; color: var(--text-dim); margin-bottom: 36px; }

/* Hero */
#hero { text-align: center; align-items: center; }
#hero h1 { font-size: 52px; margin-bottom: 16px; }
#hero h1 .accent { color: var(--accent); }
#hero .tagline { font-size: 22px; color: var(--text-dim); margin-bottom: 40px; }
.badge-row { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.badge {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 24px;
  font-size: 15px;
  color: var(--text-dim);
}
.badge .num { font-size: 28px; font-weight: 700; color: var(--accent); margin-right: 8px; }

/* Grid */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 16px; }
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}
.card h3 { font-size: 18px; color: var(--accent); margin-bottom: 12px; }
.card .meta { font-size: 13px; color: var(--text-dim); margin-bottom: 12px; }
.card ul { list-style: none; }
.card li { font-size: 14px; color: var(--text); margin-bottom: 6px; padding-left: 16px; position: relative; }
.card li::before { content: "▸"; position: absolute; left: 0; color: var(--accent); }

/* 6D Flow */
.flow-6d { display: flex; gap: 8px; flex-wrap: wrap; }
.flow-step {
  flex: 1; min-width: 140px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 14px;
  text-align: center;
  position: relative;
}
.flow-step .d-label { font-size: 12px; color: var(--accent); font-weight: 700; letter-spacing: 2px; }
.flow-step .d-name { font-size: 16px; font-weight: 600; margin: 6px 0; }
.flow-step .d-status { font-size: 12px; padding: 3px 10px; border-radius: 12px; display: inline-block; }
.s-done { background: rgba(126,231,135,0.15); color: var(--accent-2); }
.s-progress { background: rgba(88,166,255,0.15); color: var(--accent); }
.s-pending { background: rgba(139,148,158,0.15); color: var(--text-dim); }
.s-future { background: rgba(139,148,158,0.1); color: var(--text-dim); }

/* Table */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { background: var(--bg-card-2); color: var(--accent); text-align: left; padding: 10px 14px; border-bottom: 2px solid var(--border); }
td { padding: 10px 14px; border-bottom: 1px solid var(--border); color: var(--text); }
tr:hover td { background: var(--bg-card); }

/* Red line */
.redline {
  background: rgba(248,81,73,0.08);
  border: 1px solid rgba(248,81,73,0.3);
  border-radius: 10px;
  padding: 20px 24px;
  margin-bottom: 16px;
}
.redline .rl-title { color: var(--danger); font-weight: 700; font-size: 16px; margin-bottom: 6px; }
.redline .rl-desc { font-size: 14px; color: var(--text); }

/* Evidence */
.evidence-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }
.ev-chip {
  padding: 6px 16px; border-radius: 20px; font-size: 13px; font-weight: 600;
}
.ev-pass { background: rgba(126,231,135,0.15); color: var(--accent-2); border: 1px solid rgba(126,231,135,0.3); }
.ev-pending { background: rgba(248,166,40,0.15); color: var(--accent-3); border: 1px solid rgba(248,166,40,0.3); }
.ev-na { background: rgba(139,148,158,0.1); color: var(--text-dim); border: 1px solid var(--border); }

/* Directory tree */
.tree {
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 24px;
  font-family: "SF Mono", "Cascadia Code", monospace;
  font-size: 13px;
  line-height: 1.8;
  color: var(--text);
  overflow-x: auto;
}
.tree .dir { color: var(--accent); }
.tree .file { color: var(--text); }
.tree .comment { color: var(--text-dim); }

/* Footer */
.slide-footer {
  text-align: center;
  padding: 40px 80px;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.slide-footer p { font-size: 14px; color: var(--text-dim); }

/* Nav dots */
.nav-dots {
  position: fixed; right: 24px; top: 50%; transform: translateY(-50%);
  display: flex; flex-direction: column; gap: 8px; z-index: 100;
}
.nav-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--border); cursor: pointer; transition: all 0.3s;
}
.nav-dot:hover { background: var(--accent); }

/* Animations */
.fade-in { opacity: 0; transform: translateY(20px); transition: all 0.6s; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* Capability card */
.cap-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}
.cap-card .cap-id { font-size: 12px; color: var(--accent); font-weight: 700; }
.cap-card .cap-name { font-size: 16px; font-weight: 600; margin: 6px 0; }
.cap-card .cap-desc { font-size: 13px; color: var(--text-dim); }

/* Stats */
.stat-row { display: flex; gap: 32px; justify-content: center; flex-wrap: wrap; }
.stat { text-align: center; }
.stat .stat-num { font-size: 48px; font-weight: 700; color: var(--accent); }
.stat .stat-label { font-size: 14px; color: var(--text-dim); margin-top: 4px; }