/* ==========================================================================
   Application Page Styles (应用领域页面专属样式)
   Header / Footer / 通用布局样式继承自 common.css
   配色沿用全站金色系：深金 #dca32c / #b8860b，亮金 #f5cb66
   ========================================================================== */

:root {
  --app-gold: #d4952c;
  --app-gold-deep: #b8860b;
  --app-gold-bright: #f5cb66;
  --app-ink: #221d13;
  --app-gray: #6e6759;
  --app-cream: #faf6ec;
  --app-line: #e9dfc8;
}

.app-page main {
  background: #ffffff;
  color: var(--app-ink);
}

/* -------------------------------------------------------------
   Shared: Reveal Animation & Capsule Button (与全站一致)
------------------------------------------------------------- */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(48px);
  transition: opacity 1.25s cubic-bezier(0.16, 1, 0.3, 1), transform 1.25s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-on-scroll.is-revealed {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
}

@media (prefers-reduced-motion: reduce) {
  .reveal-on-scroll {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

.btn-primary-capsule {
  position: relative;
  overflow: hidden;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 44px;
  padding: 0 32px;
  border: 1.5px solid #dca32c;
  border-radius: 22px;
  background: #ffffff;
  color: #dca32c;
  font-size: 13.5px;
  font-weight: 800;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  text-decoration: none;
  transition: color 0.45s ease, transform 0.35s ease, box-shadow 0.35s ease;
}

.btn-primary-capsule::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #dca32c, #f5cb66);
  transform: translateX(-101%);
  transition: transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1;
}

.btn-primary-capsule:hover::before {
  transform: translateX(0);
}

.btn-primary-capsule:hover {
  color: #ffffff;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(220, 163, 44, 0.35);
}

.btn-primary-capsule span,
.btn-primary-capsule i {
  position: relative;
  z-index: 2;
}

/* 导航右侧 CTA 按钮 (与全站 header 保持一致) */
.nav-cta-btn {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 26px;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--app-gold), var(--app-gold-deep));
  color: #ffffff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(212, 149, 44, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.nav-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(212, 149, 44, 0.45);
}

/* -------------------------------------------------------------
   1. Application Hero Banner (浅色渐变 + 金色波浪装饰)
------------------------------------------------------------- */
.app-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #fdfaf2 0%, #faf3e2 55%, #f4e8cd 100%);
  border-bottom: 1px solid var(--app-line);
}

.app-hero__wave {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 130px;
  color: var(--app-gold);
  pointer-events: none;
}

.app-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(44px, 5vw, 72px);
  padding-bottom: clamp(44px, 5vw, 72px);
}

.app-hero__title {
  margin: 0;
  font-size: clamp(40px, 4.8vw, 68px);
  font-weight: 800;
  letter-spacing: 3px;
  color: var(--app-gold-deep);
}

.app-hero__underline {
  display: block;
  width: 84px;
  height: 4px;
  margin-top: 16px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--app-gold), var(--app-gold-bright));
}

.app-hero__sub {
  margin: 20px 0 0;
  max-width: 640px;
  font-size: clamp(14.5px, 1.3vw, 17px);
  line-height: 1.85;
  color: var(--app-gray);
}

.app-hero__breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
  font-size: 14px;
}

.app-hero__breadcrumb a {
  color: var(--app-gold-deep);
  text-decoration: none;
  transition: color 0.3s ease;
}

.app-hero__breadcrumb a:hover {
  color: var(--app-gold);
}

.app-hero__breadcrumb .breadcrumb-arrow {
  font-size: 10px;
  color: var(--app-gray);
}

.app-hero__breadcrumb .breadcrumb-current {
  color: var(--app-gold-deep);
  font-weight: 700;
}

/* -------------------------------------------------------------
   2. 应用领域网格 (4 列卡片)
------------------------------------------------------------- */
.app-main {
  padding: clamp(44px, 5vw, 72px) 0 clamp(56px, 6vw, 92px);
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(18px, 2.2vw, 28px);
}

.app-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid #efe6d0;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(34, 29, 19, 0.05);
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

/* 顶部金色饰条：悬停时自中心展开 */
.app-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 22px;
  right: 22px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--app-gold-deep), var(--app-gold-bright));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 2;
}

.app-card:hover::before {
  transform: scaleX(1);
}

.app-card:hover {
  transform: translateY(-6px);
  border-color: rgba(212, 149, 44, 0.55);
  box-shadow: 0 20px 44px rgba(184, 134, 11, 0.18);
}

.app-card__media {
  position: relative;
  display: block;
  aspect-ratio: 16 / 10.5;
  overflow: hidden;
  background: var(--app-cream);
}

/* 图片暗角：悬停时轻微压暗，凸显主体 */
.app-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(34, 29, 19, 0) 55%, rgba(34, 29, 19, 0.22) 100%);
  opacity: 0;
  transition: opacity 0.45s ease;
  pointer-events: none;
}

.app-card:hover .app-card__media::after {
  opacity: 1;
}

.app-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.app-card:hover .app-card__media img {
  transform: scale(1.07);
}

.app-card__name {
  position: relative;
  margin: 0;
  padding: 18px 14px 20px;
  border-top: 1px solid var(--app-line);
  text-align: center;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: var(--app-ink);
  transition: color 0.3s ease;
}

/* 名称下方金色短划线：悬停时展开 */
.app-card__name::after {
  content: "";
  display: block;
  width: 30px;
  height: 2px;
  margin: 11px auto 0;
  border-radius: 1px;
  background: linear-gradient(90deg, var(--app-gold-deep), var(--app-gold-bright));
  transform: scaleX(0);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.app-card:hover .app-card__name {
  color: var(--app-gold-deep);
}

.app-card:hover .app-card__name::after {
  transform: scaleX(1);
}

/* -------------------------------------------------------------
   Responsive (响应式适配)
------------------------------------------------------------- */
@media (max-width: 1080px) {
  .app-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .app-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .app-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1200px) {
  .nav-cta-btn {
    display: none;
  }
}