/**
 * 渊渟集团官网 - Hero区样式
 */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-rice-paper);
  padding-top: 80px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 0%, rgba(250, 248, 245, 0.8) 100%);
  pointer-events: none;
}

.hero-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

/* ========== 标题 ========== */
.hero-title {
  margin-bottom: var(--space-6);
}

.hero-title-main {
  display: block;
  font-size: var(--text-5xl);
  font-weight: 700;
  color: var(--color-ink-black);
  letter-spacing: 0.3em;
  line-height: 1.2;
}

/* ========== 副标题 ========== */
.hero-subtitle {
  font-size: var(--text-2xl);
  font-weight: 500;
  color: var(--color-cinnabar);
  letter-spacing: 0.15em;
  margin-bottom: var(--space-6);
}

/* ========== 描述 ========== */
.hero-description {
  font-size: var(--text-lg);
  color: var(--color-ink-gray);
  line-height: 2;
  margin-bottom: var(--space-10);
}

/* ========== CTA按钮 ========== */
.hero-cta {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ========== 滚动指示器 ========== */
.hero-scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--color-ink-gray);
  cursor: pointer;
  transition: color var(--transition-fast) ease;
  animation: bounceDown 2s ease-in-out infinite;
}

.hero-scroll:hover {
  color: var(--color-cinnabar);
}

.hero-scroll-icon {
  width: 32px;
  height: 32px;
  opacity: 0.6;
}

/* 弹跳动画关键帧 */
@keyframes bounceDown {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

/* ========== 装饰元素 ========== */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to top, var(--color-rice-paper), transparent);
  pointer-events: none;
}