/* ============================================================
 * Hero 首屏样式 — 绿色能源主题
 * ============================================================ */

.hero {
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 0 60px;
  background: var(--bg-hero);
}

#hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at center, transparent 0%, var(--bg-primary) 80%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 1000px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--glass-border);
  border-radius: 30px;
  padding: 8px 20px;
  font-size: 14px;
  color: var(--accent-primary);
  margin-bottom: var(--spacing-lg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  animation: fadeInDown 1s ease 0.2s both;
}

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

.hero-title {
  font-size: 68px;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 1s ease 0.4s both;
  color: var(--text-primary);
}

.hero-title .line {
  display: block;
}

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

/* ===== 核心卖点USP（三栏强化） ===== */
.hero-usp {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 1s ease 0.6s both;
}

.hero-usp-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 28px;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(46, 125, 50, 0.12);
  border-radius: 14px;
  transition: var(--transition-normal);
  cursor: default;
}

.hero-usp-item:hover {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(46, 125, 50, 0.3);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(46, 125, 50, 0.1);
}

.hero-usp-line {
  width: 3px;
  height: 24px;
  border-radius: 2px;
  background: var(--gradient-primary);
  flex-shrink: 0;
}

.hero-usp-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 2px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 50px;
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 1s ease 0.8s both;
}

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

.hero-stat-value {
  font-size: 42px;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.hero-stat-value .suffix {
  font-size: 20px;
  font-weight: 600;
}

.hero-stat-label {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 1px;
  margin-top: 4px;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 20px;
  animation: fadeInUp 1s ease 1s both;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 12px;
  letter-spacing: 2px;
  animation: floating 3s ease-in-out infinite;
}

.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent-primary), transparent);
  animation: scrollLine 2s ease infinite;
}

.hero-bg-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-bg-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.08;
}