/* ============================================================
   hero.css — 首屏英雄区域
   深色渐变背景、双栏布局（文字 + 预约表单）、滚动指示器
   ============================================================ */

/* ----------------------------------------------------------
   英雄区域容器
   ---------------------------------------------------------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #0F172A 0%, #111111 50%, #0F172A 100%);
  padding-top: 140px;
  padding-bottom: 80px;
}

/* 微妙的渐变动画背景层 */
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    ellipse at 30% 50%,
    rgba(212, 175, 55, 0.03) 0%,
    transparent 50%
  );
  animation: heroGlow 15s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes heroGlow {
  0% {
    transform: translate(0, 0) scale(1);
  }
  100% {
    transform: translate(5%, -5%) scale(1.1);
  }
}

/* ----------------------------------------------------------
   背景图片（半透明装饰）
   ---------------------------------------------------------- */
.hero-bg-image {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 55%;
  height: 90%;
  object-fit: contain;
  opacity: 0.15;
  filter: brightness(1.2);
  pointer-events: none;
  user-select: none;
}

/* ----------------------------------------------------------
   内容区域 — 双栏网格
   ---------------------------------------------------------- */
.hero-content {
  position: relative;
  z-index: var(--z-base);
  max-width: var(--content-width);
  width: 100%;
  padding: 0 var(--space-12);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

/* ----------------------------------------------------------
   左侧文字区域
   ---------------------------------------------------------- */
.hero-text {
  color: var(--color-pure-white);
}

/* 标题 — 白色到金色渐变 */
.hero-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, #FFFFFF 0%, #D4AF37 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 副标题 */
.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-platinum-gray);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-12);
  max-width: 500px;
}

/* ----------------------------------------------------------
   右侧预约表单容器 — 毛玻璃卡片
   ---------------------------------------------------------- */
.hero-form-container {
  background: var(--color-white-05);
  border: 1px solid var(--color-white-10);
  border-radius: var(--radius-xl);
  padding: 36px;
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  position: relative;
}

/* 表单顶部装饰线 */
.hero-form-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-champagne-gold), transparent);
  border-radius: var(--radius-full);
}

.hero-form-title {
  color: var(--color-pure-white);
  font-size: var(--text-2xl);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-6);
  text-align: center;
  font-family: var(--font-cn);
}

/* ----------------------------------------------------------
   表单元素
   ---------------------------------------------------------- */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  color: var(--color-platinum-gray);
  font-size: var(--text-base);
  margin-bottom: var(--space-2);
  font-weight: var(--weight-medium);
}

.form-select {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-white-08);
  border: 1px solid var(--color-white-15);
  border-radius: var(--radius-md);
  color: var(--color-pure-white);
  font-size: var(--text-lg);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  transition: border-color var(--transition-base);
  box-sizing: border-box;
  /* 自定义下拉箭头 */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394A3B8' d='M6 8.825L1.175 4l.825-.825L6 7.175 10 3.175l.825.825L6 8.825z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-select:focus {
  border-color: var(--color-champagne-gold);
  outline: none;
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.form-select option {
  background: var(--color-deep-sea-blue);
  color: var(--color-pure-white);
  padding: 8px;
}

/* 文本输入框 */
.form-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-white-08);
  border: 1px solid var(--color-white-15);
  border-radius: var(--radius-md);
  color: var(--color-pure-white);
  font-size: var(--text-lg);
  transition: border-color var(--transition-base);
  box-sizing: border-box;
}

.form-input:focus {
  border-color: var(--color-champagne-gold);
  outline: none;
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.form-input::placeholder {
  color: var(--color-white-40);
}

/* ----------------------------------------------------------
   标签选择器 — Chip 组
   ---------------------------------------------------------- */
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  padding: 8px 16px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-white-20);
  background: transparent;
  color: var(--color-pure-white);
  font-size: var(--text-base);
  cursor: pointer;
  transition: all var(--transition-base);
  user-select: none;
}

.chip:hover {
  border-color: var(--color-gold-border);
  background: rgba(212, 175, 55, 0.05);
}

.chip.selected {
  background: var(--color-gold-medium);
  border-color: var(--color-champagne-gold);
  color: var(--color-champagne-gold);
}

/* ----------------------------------------------------------
   提交按钮
   ---------------------------------------------------------- */
.hero-submit-btn {
  width: 100%;
  padding: 14px;
  background: var(--color-champagne-gold);
  color: var(--color-pure-white);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  cursor: pointer;
  transition: all var(--transition-base);
  margin-top: var(--space-2);
  letter-spacing: var(--tracking-tight);
  position: relative;
  overflow: hidden;
}

/* 悬停光效 */
.hero-submit-btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.15),
    transparent
  );
  transition: left 0.5s ease;
}

.hero-submit-btn:hover {
  background: var(--color-gold-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-gold-lg);
}

.hero-submit-btn:hover::after {
  left: 100%;
}

.hero-submit-btn:active {
  transform: translateY(0);
  box-shadow: none;
}

/* ----------------------------------------------------------
   滚动指示器
   ---------------------------------------------------------- */
.hero-scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-white-40);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  cursor: pointer;
  transition: color var(--transition-base);
}

.hero-scroll-indicator:hover {
  color: var(--color-champagne-gold);
}

.hero-scroll-indicator .scroll-text {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.hero-scroll-indicator .scroll-arrow {
  width: 20px;
  height: 20px;
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(8px);
  }
  60% {
    transform: translateY(4px);
  }
}

/* 鼠标线条样式（可选替代方案） */
.hero-scroll-indicator .scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(
    to bottom,
    var(--color-white-40),
    transparent
  );
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% {
    transform: scaleY(0);
    transform-origin: top;
  }
  50% {
    transform: scaleY(1);
    transform-origin: top;
  }
  50.1% {
    transform-origin: bottom;
  }
  100% {
    transform: scaleY(0);
    transform-origin: bottom;
  }
}

/* ----------------------------------------------------------
   响应式
   ---------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-content {
    gap: var(--space-8);
    padding: 0 var(--space-6);
  }
}

@media (max-width: 768px) {
  .hero {
    padding-top: 60px;
    min-height: auto;
    padding-bottom: 60px;
  }

  .hero-content {
    grid-template-columns: 1fr;
    padding: 0 var(--space-5);
    text-align: center;
  }

  .hero-subtitle {
    margin: 0 auto var(--space-8);
  }

  .hero-form-container {
    padding: var(--space-6);
  }

  .hero-bg-image {
    width: 100%;
    opacity: 0.08;
    right: 0;
  }

  .hero-scroll-indicator {
    bottom: 20px;
  }
}

@media (max-width: 480px) {
  .hero-content {
    padding: 0 var(--space-4);
  }

  .hero-form-container {
    padding: var(--space-5);
  }

  .chip {
    padding: 6px 12px;
    font-size: var(--text-xs);
  }
}