/* ============================================================
   大熊智能 — solutions.css  产品方案页样式
   ============================================================ */

/* ---------- Page Banner ---------- */
.page-banner {
  padding: 130px 0 60px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    45deg, transparent, transparent 30px,
    rgba(255,255,255,0.025) 30px, rgba(255,255,255,0.025) 60px
  );
}
.page-banner h1, .page-banner p { position: relative; }

/* ---------- Intro ---------- */
.solutions-intro {
  padding: 56px 0 12px;
  text-align: center;
}
.solutions-intro h2 {
  font-size: 1.85rem; font-weight: 700; color: var(--text-dark); margin-bottom: 14px;
}
.solutions-intro p {
  font-size: 1rem; color: var(--text-gray); max-width: 640px; margin: 0 auto;
}
.solutions-intro .line {
  width: 52px; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  margin: 16px auto 0; border-radius: 3px;
}

/* ---------- Schemes Grid ---------- */
.schemes-section {
  padding: 48px 0 88px;
}
.schemes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

/* ---------- Scheme Card ---------- */
.scheme-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}
.scheme-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

/* Image / Icon Top Area */
.scheme-card-img {
  position: relative;
  height: 220px;
  overflow: hidden;
  flex-shrink: 0;
}
.scheme-card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.scheme-card:hover .scheme-card-img img {
  transform: scale(1.05);
}
.scheme-icon-bg {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 5rem;
  color: rgba(255,255,255,0.9);
}
.scheme-icon-bg i { filter: drop-shadow(0 4px 12px rgba(0,0,0,0.2)); }

/* Gradient backgrounds per scheme */
.scheme-c1 { background: linear-gradient(135deg, #e05c2a 0%, #f5a623 100%); }
.scheme-c2 { background: linear-gradient(135deg, #1565c0 0%, #42a5f5 100%); }
.scheme-c3 { background: linear-gradient(135deg, #0097a7 0%, #4dd0e1 100%); }
.scheme-c4 { background: linear-gradient(135deg, #2e7d32 0%, #66bb6a 100%); }
.scheme-c5 { background: linear-gradient(135deg, #6a1b9a 0%, #ba68c8 100%); }
.scheme-c6 { background: linear-gradient(135deg, #1a2332 0%, #37474f 100%); }

/* Number Badge */
.scheme-num {
  position: absolute;
  top: 14px; left: 14px;
  width: 32px; height: 32px;
  background: rgba(255,255,255,0.22);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.82rem; font-weight: 700; color: #fff;
}

/* Card Body */
.scheme-card-body {
  padding: 26px 24px 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.scheme-tag {
  display: inline-block;
  padding: 3px 10px; border-radius: 20px;
  font-size: 0.75rem; font-weight: 600;
  background: var(--primary-light); color: var(--primary);
  margin-bottom: 12px; align-self: flex-start;
}
.scheme-card-body h3 {
  font-size: 1.18rem; font-weight: 700; color: var(--text-dark);
  margin-bottom: 6px; line-height: 1.4;
}
.scheme-sub {
  font-size: 0.88rem; color: var(--accent); font-weight: 600;
  margin-bottom: 12px; line-height: 1.5;
}
.scheme-desc {
  font-size: 0.88rem; color: var(--text-gray); line-height: 1.8;
  flex: 1; margin-bottom: 20px;
}
.scheme-card-body .btn {
  align-self: flex-start;
}

/* ---------- CTA Section ---------- */
.solutions-cta {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  padding: 72px 0;
  text-align: center;
  color: #fff;
}
.solutions-cta h2 {
  font-size: 1.75rem; font-weight: 700; margin-bottom: 12px;
}
.solutions-cta p {
  font-size: 1rem; opacity: 0.82; margin-bottom: 32px;
}
.solutions-cta .cta-btns {
  display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .schemes-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .schemes-grid { grid-template-columns: 1fr; gap: 20px; }
  .solutions-intro h2 { font-size: 1.5rem; }
  .scheme-card-img { height: 180px; }
}