/* ============================================================
   Audix · 智点审计官网样式表
   主题：深色 + 青绿渐变 · 专业审计工作台
   ============================================================ */

:root {
  --bg-primary: #0a0f1a;
  --bg-secondary: #0f172a;
  --bg-card: #131c2e;
  --bg-card-hover: #1a2540;
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(0, 206, 201, 0.3);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #00cec9;
  --accent-light: #5eead4;
  --accent-dark: #0891b2;
  --gradient: linear-gradient(135deg, #00cec9 0%, #0891b2 50%, #6366f1 100%);
  --gradient-soft: linear-gradient(135deg, rgba(0,206,201,0.15), rgba(99,102,241,0.15));
  --risk-red: #ef4444;
  --risk-orange: #f97316;
  --risk-yellow: #eab308;
  --risk-green: #22c55e;
  --shadow-glow: 0 0 40px rgba(0, 206, 201, 0.15);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
    'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

/* ===================== 导航栏 ===================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10, 15, 26, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  font-weight: 700;
  font-size: 22px;
}

.logo-icon {
  width: 36px;
  height: 36px;
}

.logo-text {
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
  background: rgba(0, 206, 201, 0.08);
}

.nav-btn {
  padding: 10px 22px;
  border-radius: 10px;
  background: var(--gradient);
  color: #fff !important;
  font-weight: 600;
  font-size: 14px;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(0, 206, 201, 0.3);
}

.nav-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 206, 201, 0.4);
}

/* ===================== Hero ===================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.gradient-orbs {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: float 8s ease-in-out infinite;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,206,201,0.4), transparent);
  top: -100px;
  right: -100px;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(99,102,241,0.4), transparent);
  bottom: -100px;
  left: -50px;
  animation-delay: 2s;
}

.orb-3 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(8,145,178,0.3), transparent);
  top: 40%;
  left: 50%;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -30px) scale(1.05); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 860px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(0, 206, 201, 0.1);
  border: 1px solid rgba(0, 206, 201, 0.25);
  border-radius: 100px;
  font-size: 13px;
  color: var(--accent-light);
  margin-bottom: 32px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-size: clamp(36px, 6vw, 68px);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 28px;
  letter-spacing: -1px;
}

.title-line {
  display: block;
}

.hero-subtitle {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 44px;
  line-height: 1.8;
}

.hero-subtitle strong {
  color: var(--text-primary);
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 206, 201, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 206, 201, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-lg {
  padding: 18px 40px;
  font-size: 18px;
}

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent);
  color: var(--accent);
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  color: var(--accent);
}

.stat-suffix {
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 800;
  color: var(--accent);
}

.stat-label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 12px;
  z-index: 1;
}

.scroll-indicator {
  width: 24px;
  height: 40px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  position: relative;
}

.scroll-indicator::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
  animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
  0% { transform: translateX(-50%) translateY(0); opacity: 1; }
  100% { transform: translateX(-50%) translateY(14px); opacity: 0; }
}

/* ===================== 通用 Section ===================== */
section {
  padding: 100px 0;
}

.section-header {
  margin-bottom: 56px;
}

.section-header.center {
  text-align: center;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(0, 206, 201, 0.1);
  border: 1px solid rgba(0, 206, 201, 0.2);
  border-radius: 100px;
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 600px;
}

.section-header.center .section-desc {
  margin: 0 auto;
}

/* ===================== Features ===================== */
.features {
  background: var(--bg-secondary);
  position: relative;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-soft);
  border-radius: 14px;
  color: var(--accent);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card > p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 20px;
  line-height: 1.7;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.check {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  position: relative;
}

.check::after {
  content: '';
  position: absolute;
  top: 4px;
  left: 6px;
  width: 5px;
  height: 9px;
  border: solid #0a0f1a;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.feature-cta {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  background: var(--gradient-soft);
  border: 1px solid rgba(0, 206, 201, 0.2);
}

.sparkle {
  background: var(--gradient);
  color: #fff;
}

.feature-link {
  color: var(--accent);
  font-weight: 600;
  font-size: 15px;
  margin-top: auto;
  transition: var(--transition);
}

.feature-link:hover {
  color: var(--accent-light);
  gap: 8px;
}

/* ===================== Workflow ===================== */
.workflow {
  background: var(--bg-primary);
}

.workflow-diagram {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.flow-stage {
  flex: 1;
  min-width: 180px;
  max-width: 220px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
}

.flow-stage:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.stage-circle {
  width: 52px;
  height: 52px;
  margin: 0 auto 16px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(0, 206, 201, 0.3);
}

.stage-num {
  color: #fff;
  font-weight: 800;
  font-size: 18px;
}

.stage-content h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.stage-content p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.stage-meta {
  display: inline-block;
}

.meta-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(0, 206, 201, 0.1);
  border-radius: 100px;
  font-size: 12px;
  color: var(--accent);
}

.flow-arrow {
  display: flex;
  align-items: center;
  color: var(--text-muted);
}

.signoff-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}

.signoff-section h3 {
  text-align: center;
  font-size: 22px;
  margin-bottom: 32px;
}

.signoff-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.signoff-node {
  text-align: center;
  padding: 20px 28px;
  border-radius: var(--radius-sm);
  min-width: 140px;
}

.signoff-node.level-1 {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.signoff-node.level-2 {
  background: rgba(234, 179, 8, 0.1);
  border: 1px solid rgba(234, 179, 8, 0.3);
}

.signoff-node.level-3 {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.signoff-badge {
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 8px;
}

.level-1 .signoff-badge { color: var(--risk-green); }
.level-2 .signoff-badge { color: var(--risk-yellow); }
.level-3 .signoff-badge { color: var(--risk-red); }

.signoff-role {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

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

.signoff-connector {
  width: 40px;
  height: 2px;
  background: var(--border);
  position: relative;
}

.signoff-connector::after {
  content: '→';
  position: absolute;
  right: -8px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 14px;
}

/* ===================== Risk Matrix ===================== */
.risk-section {
  background: var(--bg-secondary);
}

.risk-matrix-wrapper {
  max-width: 720px;
  margin: 0 auto;
}

.matrix-labels {
  display: grid;
  grid-template-columns: 60px repeat(3, 1fr);
  margin-bottom: 8px;
}

.label-corner {
  width: 60px;
}

.label-col {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  padding: 8px 0;
}

.risk-matrix {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.matrix-row {
  display: grid;
  grid-template-columns: 60px repeat(3, 1fr);
  gap: 8px;
  align-items: center;
}

.label-row {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

.risk-cell {
  padding: 24px 12px;
  border-radius: var(--radius-sm);
  text-align: center;
  transition: var(--transition);
  cursor: default;
}

.risk-cell:hover {
  transform: scale(1.03);
  box-shadow: var(--shadow-card);
}

.risk-cell.high {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.risk-cell.medium-high {
  background: rgba(249, 115, 22, 0.15);
  border: 1px solid rgba(249, 115, 22, 0.4);
}

.risk-cell.medium {
  background: rgba(234, 179, 8, 0.15);
  border: 1px solid rgba(234, 179, 8, 0.4);
}

.risk-cell.low {
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.4);
}

.risk-cell.minimal {
  background: rgba(148, 163, 184, 0.1);
  border: 1px solid rgba(148, 163, 184, 0.3);
}

.cell-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
}

.risk-cell.high .cell-label { color: var(--risk-red); }
.risk-cell.medium-high .cell-label { color: var(--risk-orange); }
.risk-cell.medium .cell-label { color: var(--risk-yellow); }
.risk-cell.low .cell-label { color: var(--risk-green); }
.risk-cell.minimal .cell-label { color: var(--text-muted); }

.cell-action {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
}

.legend {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.legend span {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}

.dot.red { background: var(--risk-red); }
.dot.orange { background: var(--risk-orange); }
.dot.yellow { background: var(--risk-yellow); }
.dot.green { background: var(--risk-green); }

/* ===================== Data Architecture ===================== */
.data-section {
  background: var(--bg-primary);
}

.data-flow {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.data-node {
  flex: 1;
  min-width: 160px;
  max-width: 200px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 16px;
  text-align: center;
  transition: var(--transition);
}

.data-node:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.node-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-soft);
  border-radius: 12px;
  color: var(--accent);
}

.data-node h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
}

.data-node p {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.data-tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(0, 206, 201, 0.1);
  border-radius: 100px;
  font-size: 11px;
  color: var(--accent);
}

.flow-connector {
  width: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 20px;
}

.flow-connector::after {
  content: '→';
}

.data-governance {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.governance-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 24px;
  transition: var(--transition);
}

.governance-item:hover {
  border-color: var(--border-hover);
}

.gov-icon {
  font-size: 28px;
  margin-bottom: 12px;
}

.governance-item h4 {
  font-size: 16px;
  margin-bottom: 8px;
}

.governance-item p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===================== Agent Team ===================== */
.agent-team {
  background: var(--bg-secondary);
}

.agent-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.agent-stat {
  text-align: center;
}

.agent-stat-num {
  display: block;
  font-size: 36px;
  font-weight: 800;
  color: var(--accent);
}

.agent-stat-label {
  font-size: 13px;
  color: var(--text-muted);
}

.agent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 56px;
}

.agent-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

.agent-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.agent-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  margin: 0 auto 14px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 20px;
}

.agent-avatar-1 { background: linear-gradient(135deg, #00cec9, #0891b2); }
.agent-avatar-2 { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.agent-avatar-3 { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.agent-avatar-4 { background: linear-gradient(135deg, #ec4899, #f43f5e); }
.agent-avatar-5 { background: linear-gradient(135deg, #10b981, #059669); }
.agent-avatar-6 { background: linear-gradient(135deg, #ef4444, #dc2626); }
.agent-avatar-7 { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.agent-avatar-8 { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }
.agent-avatar-9 { background: linear-gradient(135deg, #14b8a6, #0d9488); }
.agent-avatar-10 { background: linear-gradient(135deg, #f97316, #ea580c); }
.agent-avatar-11 { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.agent-avatar-12 { background: linear-gradient(135deg, #84cc16, #65a30d); }
.agent-avatar-13 { background: linear-gradient(135deg, #f43f5e, #e11d48); }
.agent-avatar-14 { background: linear-gradient(135deg, #a855f7, #9333ea); }
.agent-avatar-15 { background: linear-gradient(135deg, #0ea5e9, #0284c7); }
.agent-avatar-16 { background: linear-gradient(135deg, #64748b, #475569); }
.agent-avatar-17 { background: linear-gradient(135deg, #d946ef, #c026d3); }
.agent-avatar-18 { background: linear-gradient(135deg, #22d3ee, #06b6d4); }
.agent-avatar-19 { background: linear-gradient(135deg, #fb923c, #f97316); }
.agent-avatar-20 { background: linear-gradient(135deg, #4ade80, #22c55e); }
.agent-avatar-21 { background: linear-gradient(135deg, #60a5fa, #3b82f6); }
.agent-avatar-22 { background: linear-gradient(135deg, #f87171, #ef4444); }
.agent-avatar-23 { background: linear-gradient(135deg, #c084fc, #a855f7); }
.agent-avatar-24 { background: linear-gradient(135deg, #34d399, #10b981); }

.agent-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.agent-title {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 10px;
  line-height: 1.5;
}

.agent-dept {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(0, 206, 201, 0.1);
  border-radius: 100px;
  font-size: 11px;
  color: var(--accent);
  margin-bottom: 10px;
}

.agent-cta {
  font-size: 12px;
  color: var(--text-muted);
  transition: var(--transition);
}

.agent-card:hover .agent-cta {
  color: var(--accent);
}

.agent-collaboration {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}

.collab-title {
  text-align: center;
  margin-bottom: 36px;
}

.collab-title h3 {
  font-size: 22px;
  margin-bottom: 8px;
}

.collab-title p {
  color: var(--text-secondary);
  font-size: 14px;
}

.collab-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.collab-step {
  text-align: center;
  padding: 16px;
  min-width: 130px;
}

.step-badge {
  width: 40px;
  height: 40px;
  margin: 0 auto 12px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
}

.collab-step h4 {
  font-size: 14px;
  margin-bottom: 6px;
}

.collab-step p {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.collab-arrow {
  color: var(--text-muted);
  font-size: 18px;
}

/* ===================== CTA ===================== */
.cta-section {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.cta-orbs {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.cta-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
}

.orb-a {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,206,201,0.4), transparent);
  top: -150px;
  left: -100px;
}

.orb-b {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(99,102,241,0.4), transparent);
  bottom: -150px;
  right: -100px;
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-content > p {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.cta-features {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.cta-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.feature-icon-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  color: #0a0f1a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}

/* ===================== Modal ===================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  display: flex;
  opacity: 1;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-width: 520px;
  width: 100%;
  padding: 40px;
  position: relative;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  transform: scale(0.95);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: var(--text-secondary);
  font-size: 18px;
  cursor: pointer;
  transition: var(--transition);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.modal-body h2 {
  font-size: 24px;
  margin-bottom: 16px;
}

.modal-body p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.modal-body .modal-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ===================== Footer ===================== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 60px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.footer-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.badge-free, .badge-pro, .badge-enterprise {
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
}

.badge-free {
  background: rgba(34, 197, 94, 0.15);
  color: var(--risk-green);
}

.badge-pro {
  background: rgba(0, 206, 201, 0.15);
  color: var(--accent);
}

.badge-enterprise {
  background: rgba(139, 92, 246, 0.15);
  color: #a78bfa;
}

.footer-col h4 {
  font-size: 15px;
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.footer-icp a {
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-icp a:hover {
  color: var(--accent);
}

/* ===================== 响应式 ===================== */
@media (max-width: 968px) {
  .nav-links {
    display: none;
  }

  .hero-stats {
    gap: 24px;
  }

  .stat-divider {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .flow-arrow,
  .signoff-connector,
  .flow-connector,
  .collab-arrow {
    display: none;
  }

  .data-flow,
  .signoff-flow,
  .collab-flow {
    gap: 12px;
  }
}

@media (max-width: 640px) {
  section {
    padding: 60px 0;
  }

  .hero {
    padding: 100px 16px 60px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .modal {
    padding: 28px 20px;
  }
}

/* ===================== 滚动动画 ===================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}