/* ============ 解决方案系列专属样式 ============ */

/* 解决方案横幅 - 带装饰图形 */
.solution-banner {
  position: relative;
  padding: 8rem 2rem 5rem;
  background: linear-gradient(160deg, #1A1A1A 0%, #2D1518 100%);
  color: #fff;
  overflow: hidden;
}
.solution-banner::after {
  content: '';
  position: absolute;
  right: -100px; top: -100px;
  width: 400px; height: 400px;
  border: 2px solid rgba(185,28,28,0.2);
  border-radius: 50%;
}
.solution-banner::before {
  content: '';
  position: absolute;
  right: 50px; top: 50px;
  width: 250px; height: 250px;
  border: 2px solid rgba(212,165,116,0.15);
  border-radius: 50%;
}
.solution-banner-inner {
  max-width: 1320px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.solution-banner .tag {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 1rem;
  letter-spacing: 0.1em;
}
.solution-banner h1 {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  margin-bottom: 0.6rem;
}
.solution-banner .breadcrumb { font-size: 0.9rem; opacity: 0.7; }
.solution-banner .breadcrumb a:hover { color: var(--color-primary-light); }
.solution-banner .breadcrumb span { margin: 0 0.5rem; color: var(--color-primary); }

/* 解决方案总览 - 三栏卡片 */
.solutions-overview {
  padding: 5rem 2rem;
  background: var(--color-cream);
}
.solutions-overview-grid {
  max-width: 1320px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.sol-card {
  background: var(--color-paper);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.4s cubic-bezier(0.16,1,0.3,1);
  display: flex;
  flex-direction: column;
}
.sol-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.sol-card-header {
  padding: 2.5rem 2rem 2rem;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  position: relative;
  overflow: hidden;
}
.sol-card-header::after {
  content: attr(data-num);
  position: absolute;
  right: 1rem; bottom: -1.5rem;
  font-family: var(--font-serif);
  font-size: 6rem;
  font-weight: 900;
  color: rgba(255,255,255,0.1);
  line-height: 1;
}
.sol-card-header .sol-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.sol-card-header h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: 0.4rem;
}
.sol-card-header .sol-en {
  font-size: 0.78rem;
  opacity: 0.7;
  letter-spacing: 0.1em;
}
.sol-card-body {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}
.sol-card-body p {
  color: var(--color-slate);
  line-height: 1.8;
  margin-bottom: 1.5rem;
  font-size: 0.92rem;
}
.sol-card-body .sol-points {
  margin-bottom: 1.5rem;
  flex-grow: 1;
}
.sol-card-body .sol-points li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.88rem;
  color: var(--color-ink);
  margin-bottom: 0.6rem;
}
.sol-card-body .sol-points li::before {
  content: '▸';
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}
.sol-card-body .sol-stat {
  display: flex;
  justify-content: space-between;
  padding: 1rem 0;
  border-top: 1px solid var(--color-mist);
  margin-bottom: 1.5rem;
}
.sol-card-body .sol-stat-item {
  text-align: center;
}
.sol-card-body .sol-stat-item .v {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
}
.sol-card-body .sol-stat-item .l {
  font-size: 0.75rem;
  color: var(--color-text-light);
}
.sol-card-body .more {
  display: block;
  text-align: center;
  background: var(--color-sand);
  color: var(--color-primary);
  padding: 0.8rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: all 0.25s;
}
.sol-card-body .more:hover {
  background: var(--color-primary);
  color: #fff;
}

/* ===== 方案详情 - 流程时间线 ===== */
.solution-process {
  padding: 5rem 2rem;
  background: var(--color-cream);
}
.solution-process-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.process-intro {
  text-align: center;
  margin-bottom: 4rem;
}
.process-intro p {
  color: var(--color-slate);
  font-size: 1.05rem;
  line-height: 1.9;
  max-width: 720px;
  margin: 1rem auto 0;
}
.process-steps {
  position: relative;
  counter-reset: step;
}
.process-step {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
  align-items: flex-start;
}
.process-step-num {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: var(--color-paper);
  border: 3px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  position: relative;
  z-index: 2;
  box-shadow: var(--shadow-sm);
}
.process-step:not(:last-child) .process-step-num::after {
  content: '';
  position: absolute;
  top: 100%; left: 50%;
  transform: translateX(-50%);
  width: 2px; height: calc(100% + 2rem);
  background: linear-gradient(180deg, var(--color-primary), transparent);
}
.process-step-content {
  background: var(--color-paper);
  border-radius: var(--radius-lg);
  padding: 2rem 2.5rem;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-primary);
}
.process-step-content .step-tag {
  display: inline-block;
  background: var(--color-sand);
  color: var(--color-primary);
  padding: 0.25rem 0.8rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}
.process-step-content h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  margin-bottom: 0.8rem;
}
.process-step-content p {
  color: var(--color-slate);
  line-height: 1.8;
  font-size: 0.95rem;
}
.process-step-content .step-details {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1.2rem;
}
.process-step-content .detail-item {
  background: var(--color-sand);
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--color-ink);
}
.process-step-content .detail-item strong {
  color: var(--color-primary);
  display: block;
  margin-bottom: 0.2rem;
}

/* 方案配置推荐 */
.solution-config {
  padding: 5rem 2rem;
  background: var(--color-paper);
}
.solution-config-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.solution-config h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  text-align: center;
  margin-bottom: 3rem;
}
.config-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-paper);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.config-table th {
  background: var(--color-primary);
  color: #fff;
  padding: 1rem 1.5rem;
  text-align: left;
  font-size: 0.92rem;
}
.config-table td {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--color-mist);
  font-size: 0.9rem;
}
.config-table tr:hover { background: var(--color-sand); }
.config-table td:first-child { font-weight: 600; color: var(--color-ink); }

/* 方案收益对比 */
.solution-benefits {
  padding: 5rem 2rem;
  background: var(--color-ink);
  color: #fff;
}
.solution-benefits-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.solution-benefits h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  text-align: center;
  margin-bottom: 3rem;
}
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.benefit-item {
  text-align: center;
  padding: 2rem 1rem;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.1);
  transition: all 0.3s;
}
.benefit-item:hover {
  background: rgba(185,28,28,0.15);
  border-color: var(--color-primary);
  transform: translateY(-4px);
}
.benefit-item .b-num {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary-light);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.benefit-item .b-label {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
}

/* CTA */
.solution-cta {
  padding: 4rem 2rem;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  text-align: center;
  color: #fff;
}
.solution-cta h2 {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  margin-bottom: 0.8rem;
}
.solution-cta p { margin-bottom: 2rem; opacity: 0.9; }
.solution-cta .btn-primary {
  background: #fff;
  color: var(--color-primary);
}
.solution-cta .btn-primary:hover {
  background: var(--color-cream);
}

@media (max-width: 1024px) {
  .solutions-overview-grid { grid-template-columns: 1fr; }
  .process-step-content .step-details { grid-template-columns: 1fr; }
  .benefits-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 600px) {
  .process-step { grid-template-columns: 60px 1fr; gap: 1rem; }
  .process-step-num { width: 60px; height: 60px; font-size: 1.4rem; }
  .process-step-content { padding: 1.5rem; }
  .benefits-grid { grid-template-columns: 1fr; }
  .solution-banner h1 { font-size: 2rem; }
}