/* ═══════════════════════════════════════════════════════
   导演台 — 官网样式
   ═══════════════════════════════════════════════════════ */

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a25;
  --bg-card-hover: #22223a;
  --text-primary: #f1f1f7;
  --text-secondary: #8888aa;
  --text-muted: #555577;
  --accent: #7c3aed;
  --accent-light: #a78bfa;
  --accent-dark: #5b21b6;
  --border: #2a2a3a;
  --gradient: linear-gradient(135deg, #7c3aed 0%, #06b6d4 100%);
  --radius: 12px;
  --radius-lg: 20px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ═══ Navigation ═══ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon { font-size: 24px; }

.logo-text {
  font-size: 20px;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links { display: flex; gap: 32px; }

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--text-primary); }

/* ═══ Badge ═══ */

.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  background: rgba(124, 58, 237, 0.15);
  color: var(--accent-light);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

/* ═══ Section Header ═══ */

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 16px;
}

/* ═══ Hero ═══ */

.hero {
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -300px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124,58,237,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  color: var(--text-secondary);
  font-size: 17px;
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-actions { display: flex; gap: 12px; margin-bottom: 40px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}

.btn-primary {
  background: var(--gradient);
  color: white;
  border: none;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(124,58,237,0.3); }

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent-light); }

.btn-large { padding: 14px 40px; font-size: 16px; }

.hero-stats {
  display: flex;
  gap: 32px;
}
.hero-stats div {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
}
.hero-stats strong {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

/* ═══ Demo Window ═══ */

.demo-window {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.demo-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
}

.demo-title {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-muted);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.demo-body {
  display: flex;
  height: 320px;
}

.demo-sidebar {
  width: 56px;
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: rgba(0,0,0,0.2);
}

.sidebar-item {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(255,255,255,0.04);
  transition: all 0.2s;
}
.sidebar-item.active { background: rgba(124,58,237,0.3); }

.demo-main { flex: 1; padding: 16px; }

.demo-panel {
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.panel-header {
  height: 32px;
  background: rgba(255,255,255,0.04);
  border-radius: 8px;
  width: 60%;
}

.panel-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.content-row { display: flex; gap: 8px; flex: 1; }

.content-block {
  background: rgba(255,255,255,0.03);
  border-radius: 8px;
}
.content-block.large { flex: 2; }
.content-block.small { flex: 1; }

/* ═══ Features ═══ */

.features {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all 0.3s;
}
.feature-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  border-color: var(--accent);
}

.feature-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--icon-color) 20%, transparent), transparent);
  border-radius: 12px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* ═══ Workflow ═══ */

.workflow {
  padding: 100px 0;
}

.workflow-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 720px;
  margin: 0 auto;
}

.workflow-step {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 28px 0;
  position: relative;
}
.workflow-step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 28px;
  top: 72px;
  bottom: -28px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 800;
  flex-shrink: 0;
}

.step-content { flex: 1; padding-top: 6px; }

.step-content h3 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }

.step-content p { color: var(--text-secondary); font-size: 14px; line-height: 1.6; }

.step-arrow {
  font-size: 24px;
  color: var(--accent-light);
  padding-top: 10px;
}

/* ═══ Download ═══ */

.download {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.download-card {
  max-width: 480px;
  margin: 0 auto;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
}

.download-icon { font-size: 48px; margin-bottom: 16px; }

.download-card h3 { font-size: 24px; font-weight: 700; margin-bottom: 8px; }

.download-desc { color: var(--text-secondary); margin-bottom: 24px; }

.download-info {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.download-info span {
  font-size: 13px;
  color: var(--text-muted);
}

.download-actions { margin-bottom: 16px; }

.download-tip {
  font-size: 12px;
  color: var(--text-muted);
}

/* ═══ Footer ═══ */

.footer {
  padding: 60px 0 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 40px;
}

.footer-brand .logo-icon { font-size: 28px; }

.footer-brand span {
  font-size: 18px;
  font-weight: 700;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 13px;
  margin-top: 8px;
}

.footer-links h4,
.footer-tech h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.footer-links a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  padding: 4px 0;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--text-primary); }

.footer-tech span {
  display: block;
  color: var(--text-secondary);
  font-size: 13px;
  padding: 2px 0;
}

.footer-bottom {
  padding: 20px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}
.footer-bottom p { font-size: 13px; color: var(--text-muted); }

/* ═══ Responsive ═══ */

@media (max-width: 768px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-content h1 { font-size: 36px; }
  .hero-stats { gap: 20px; }
  .features-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .nav-links { display: none; }
  .download-info { flex-direction: column; gap: 8px; }
  .step-arrow { display: none; }
}