/* ============================================
   Hero 横幅（首页 + 内页）
   ============================================ */

.hero {
  position: relative;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  overflow: hidden;
  color: #ffffff;
}

/* 背景层 */
.hero__bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 0;
}

/* 渐变叠加层 */
.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    160deg,
    rgba(15, 37, 87, 0.92) 0%,
    rgba(26, 86, 219, 0.78) 40%,
    rgba(30, 58, 138, 0.82) 70%,
    rgba(15, 37, 87, 0.9) 100%
  );
  z-index: 1;
}

/* 内容层 */
.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 0 var(--container-pad);
}

/* === 首页 Hero === */
.hero--home {
  min-height: 100vh;
}

.hero--home .hero__bg {
  background-color: #0f2557;
  background-image:
    radial-gradient(ellipse at 15% 85%, rgba(59, 130, 246, 0.25) 0%, transparent 45%),
    radial-gradient(ellipse at 85% 15%, rgba(99, 102, 241, 0.18) 0%, transparent 40%),
    radial-gradient(ellipse at 50% 50%, rgba(30, 58, 138, 0.6) 0%, transparent 65%),
    radial-gradient(ellipse at 70% 70%, rgba(26, 86, 219, 0.2) 0%, transparent 50%),
    radial-gradient(ellipse at 30% 30%, rgba(37, 99, 235, 0.12) 0%, transparent 50%);
}

.hero__badge {
  display: inline-block;
  padding: 6px 20px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 20px;
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 2px;
  margin-bottom: var(--sp-xl);
}

.hero__title {
  font-size: var(--fs-hero);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--sp-lg);
  letter-spacing: 3px;
  color: #ffffff;
}

.hero__title span {
  color: rgba(255, 255, 255, 0.85);
}

.hero__subtitle {
  font-size: var(--fs-xl);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--sp-2xl);
  letter-spacing: 4px;
  font-weight: 300;
}

/* 副标题滑入动画 */
.hero__subtitle--animated {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 12px;
}

.hero__subtitle-item,
.hero__subtitle-sep {
  opacity: 0;
  -webkit-transform: translateY(20px);
  transform: translateY(20px);
  -webkit-animation: subtitleSlideIn 0.6s ease-out forwards;
  animation: subtitleSlideIn 0.6s ease-out forwards;
}

.hero__subtitle-sep {
  font-weight: 200;
  opacity: 0;
}

@-webkit-keyframes subtitleSlideIn {
  to {
    opacity: 1;
    -webkit-transform: translateY(0);
    transform: translateY(0);
  }
}

@keyframes subtitleSlideIn {
  to {
    opacity: 1;
    -webkit-transform: translateY(0);
    transform: translateY(0);
  }
}

.hero__actions {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: var(--sp-lg);
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
}

/* Hero内的按钮特殊样式 */
.hero .btn--gold {
  background: #ffffff;
  color: var(--color-gold);
  border-color: #ffffff;
}

.hero .btn--gold:hover {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.25);
  color: var(--color-gold-dark);
}

.hero .btn--outline {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.5);
}

.hero .btn--outline:hover {
  background: #ffffff;
  color: var(--color-gold);
  border-color: #ffffff;
}

/* 滚动提示 */
.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: var(--sp-sm);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--fs-xs);
  letter-spacing: 2px;
  animation: bounce 2s infinite;
}

.hero__scroll-arrow {
  width: 24px;
  height: 24px;
  border-right: 2px solid rgba(255, 255, 255, 0.6);
  border-bottom: 2px solid rgba(255, 255, 255, 0.6);
  transform: rotate(45deg);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* === 内页 Hero === */
.hero--inner {
  min-height: 40vh;
  padding-top: var(--header-h);
}

.hero--inner .hero__bg {
  background-color: #1e3a8a;
  background-image:
    radial-gradient(ellipse at 30% 50%, rgba(59, 130, 246, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 50%);
}

.hero--inner .hero__title {
  font-size: var(--fs-4xl);
  margin-bottom: var(--sp-md);
  color: #ffffff;
}

/* --- 响应式 --- */
@media (max-width: 1023px) {
  .hero__title { font-size: var(--fs-4xl); }
  .hero__subtitle { font-size: var(--fs-lg); }
  .hero--inner .hero__title { font-size: var(--fs-3xl); }
}

@media (max-width: 767px) {
  .hero--home { min-height: 90vh; }
  .hero__title { font-size: var(--fs-3xl); letter-spacing: 1px; }
  .hero__subtitle { font-size: var(--fs-base); letter-spacing: 2px; }
  .hero__badge { font-size: var(--fs-xs); }
  .hero--inner { min-height: 30vh; }
  .hero--inner .hero__title { font-size: var(--fs-2xl); }
}