/* ===== 首页专用样式 ===== */

/* ----- 首页封面 / Hero ----- */
.ec-hero {
  position: relative;
  min-height: calc(100vh - var(--ec-navbar-height));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  text-align: center;
}

.ec-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* 科技感网格 */
.ec-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(76, 175, 80, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(76, 175, 80, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 45%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 45%, #000 0%, transparent 75%);
}

/* 辉光光斑 */
.ec-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
}

.ec-glow-1 {
  width: 480px;
  height: 480px;
  background: var(--ec-accent);
  top: -10%;
  left: -8%;
  animation: ec-float 14s ease-in-out infinite;
}

.ec-glow-2 {
  width: 420px;
  height: 420px;
  background: var(--ec-accent-2);
  bottom: -15%;
  right: -6%;
  animation: ec-float 18s ease-in-out infinite reverse;
}

@keyframes ec-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -25px) scale(1.08); }
}

.ec-hero-content {
  position: relative;
  z-index: 1;
}

.ec-hero-title {
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: 1px;
  margin-bottom: 2.5rem;
  color: var(--ec-text);
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.6);
}

.ec-hero-highlight {
  background: linear-gradient(135deg, var(--ec-accent) 0%, #a5e8a8 50%, var(--ec-accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 18px rgba(76, 175, 80, 0.55));
}

.ec-hero-btn {
  padding: 0.85rem 3rem !important;
  font-size: 1.1rem;
}

.ec-hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.ec-more-btn {
  background: transparent;
  color: var(--ec-text) !important;
  border: 1px solid rgba(76, 175, 80, 0.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.ec-more-btn:hover {
  color: #06140a !important;
  background: linear-gradient(135deg, var(--ec-accent) 0%, var(--ec-accent-2) 100%);
  border-color: transparent;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(76, 175, 80, 0.35);
}

/* ----- 功能特性区 ----- */
.ec-features {
  min-height: calc(100vh - var(--ec-navbar-height));
  padding: 5rem 0 5rem;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* 功能卡片 */
.ec-card {
  position: relative;
  height: 100%;
  padding: 2rem 1.75rem;
  background: linear-gradient(160deg, rgba(17, 23, 38, 0.85) 0%, rgba(10, 14, 26, 0.85) 100%);
  border: 1px solid rgba(76, 175, 80, 0.12);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease;
}

.ec-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(76, 175, 80, 0.6), transparent);
  opacity: 0;
  transition: opacity 0.28s ease;
}

.ec-card:hover {
  transform: translateY(-6px);
  border-color: rgba(76, 175, 80, 0.45);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(76, 175, 80, 0.12);
}

.ec-card:hover::before {
  opacity: 1;
}

.ec-card-icon {
  width: 52px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(76, 175, 80, 0.22) 0%, rgba(46, 125, 50, 0.15) 100%);
  border: 1px solid rgba(76, 175, 80, 0.3);
  color: var(--ec-accent);
  margin-bottom: 1.25rem;
  transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.ec-card-icon svg {
  width: 26px;
  height: 26px;
}

.ec-card:hover .ec-card-icon {
  transform: scale(1.08) rotate(-4deg);
  box-shadow: 0 0 18px rgba(76, 175, 80, 0.4);
}

.ec-card-title {
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--ec-text);
  margin-bottom: 0.6rem;
}

.ec-card-desc {
  color: var(--ec-text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  margin: 0;
}