/*
 * 首页布局与组件
 * 设计策略：工程专业型，突出监理/施工能力与项目业绩的可筛选表格
 */

/* ============ 英雄区域 ============ */
.hero {
  position: relative;
  padding: var(--spacing-5xl) 0 var(--spacing-4xl);
  background: linear-gradient(135deg, var(--primary-lightest) 0%, #f9fbff 100%);
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(30, 64, 175, 0.08), transparent 35%),
              radial-gradient(circle at 80% 0%, rgba(245, 158, 11, 0.12), transparent 30%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--spacing-4xl);
  align-items: center;
  z-index: 1;
}

.hero-copy h1 {
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-size: var(--font-size-2xl);
  color: var(--primary-main);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--spacing-md);
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--neutral-medium-gray);
  margin-bottom: var(--spacing-2xl);
  line-height: var(--line-height-relaxed);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-2xl);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--spacing-lg);
}

.stat-block {
  background: var(--neutral-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
}

.stat-block strong {
  display: block;
  font-size: var(--font-size-4xl);
  color: var(--primary-dark);
  margin-bottom: var(--spacing-xs);
}

.stat-block span {
  color: var(--neutral-medium-gray);
}

.hero-visual .hero-image {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-2xl);
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-chip {
  position: absolute;
  top: var(--spacing-lg);
  left: var(--spacing-lg);
  background: rgba(17, 24, 39, 0.75);
  color: var(--neutral-white);
  padding: 8px 14px;
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-semibold);
  box-shadow: var(--shadow-md);
}

.hero-meta-card {
  position: absolute;
  bottom: var(--spacing-lg);
  left: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  padding: var(--spacing-lg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--neutral-gray);
}

.hero-meta-card p {
  margin: 0 0 var(--spacing-sm);
  color: var(--neutral-dark-gray);
}

.hero-meta-card p:last-child {
  margin-bottom: 0;
}

/* ============ 质量安全保障 ============ */
.assurance {
  background: var(--neutral-white);
}

.assurance-grid {
  margin-top: var(--spacing-2xl);
}

.assurance-card {
  background: var(--neutral-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--neutral-gray);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.assurance-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.assurance-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(30, 64, 175, 0.08);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-2xl);
}

.assurance-card h3 {
  margin-bottom: var(--spacing-sm);
}

.assurance-card p {
  margin: 0;
  color: var(--neutral-medium-gray);
}

/* ============ 核心业务 ============ */
.core-services {
  background: #f5f7fb;
}

.service-rows {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3xl);
}

.service-row {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--spacing-3xl);
  align-items: center;
  background: var(--neutral-white);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-3xl);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.service-row::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid var(--neutral-gray);
  pointer-events: none;
}

.service-row.reverse .service-text {
  order: 2;
}

.service-row.reverse .service-media {
  order: 1;
}

.service-tag {
  display: inline-flex;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(30, 64, 175, 0.08);
  color: var(--primary-dark);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-md);
}

.service-points {
  list-style: none;
  padding: 0;
  margin: var(--spacing-md) 0 var(--spacing-xl);
  display: grid;
  gap: var(--spacing-sm);
}

.service-points li {
  padding-left: var(--spacing-lg);
  position: relative;
  color: var(--neutral-medium-gray);
}

.service-points li::before {
  content: '•';
  color: var(--accent-orange);
  position: absolute;
  left: 0;
  top: 0;
}

.service-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.service-media {
  position: relative;
}

.service-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.media-badge {
  position: absolute;
  bottom: var(--spacing-lg);
  left: var(--spacing-lg);
  background: rgba(17, 24, 39, 0.82);
  color: var(--neutral-white);
  padding: 10px 16px;
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-semibold);
  box-shadow: var(--shadow-md);
}

/* ============ 资质证书 ============ */
.certificates {
  background: var(--neutral-white);
}

.certificate-slider {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.certificate-track {
  display: flex;
  gap: var(--spacing-lg);
  overflow: hidden;
  scroll-behavior: smooth;
  flex: 1;
}

.certificate-card {
  min-width: 260px;
  max-width: 320px;
  background: var(--neutral-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--neutral-gray);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.certificate-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.certificate-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}

.certificate-info {
  padding: var(--spacing-lg);
}

.certificate-info h4 {
  margin-bottom: var(--spacing-sm);
}

.certificate-info p {
  margin: 0;
  color: var(--neutral-medium-gray);
}

.slider-btn {
  border: none;
  background: var(--primary-main);
  color: var(--neutral-white);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.slider-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.cert-lightbox {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: var(--z-modal);
}

.cert-lightbox[hidden] {
  display: none;
}

.cert-lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
}

.cert-lightbox-content {
  position: relative;
  background: var(--neutral-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  max-width: 640px;
  width: 90%;
  z-index: 1;
}

.cert-lightbox-content img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
}

.cert-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  cursor: pointer;
  color: var(--neutral-medium-gray);
}

/* ============ 项目业绩 ============ */
.projects-performance {
  background: #f5f7fb;
}

.filter-bar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.filter-group.stretch input {
  flex: 1;
}

.performance-table {
  background: var(--neutral-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--neutral-gray);
}

.performance-table table {
  width: 100%;
  border-collapse: collapse;
}

.performance-table th,
.performance-table td {
  padding: var(--spacing-lg);
  text-align: left;
  border-bottom: 1px solid var(--neutral-gray);
}

.performance-table th {
  background: var(--primary-lightest);
  cursor: pointer;
  user-select: none;
  font-weight: var(--font-weight-bold);
}

.performance-table tr:hover td {
  background: rgba(30, 64, 175, 0.05);
}

.project-link {
  color: var(--primary-main);
  font-weight: var(--font-weight-semibold);
}

.performance-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.meta-item {
  background: var(--neutral-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--neutral-gray);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.meta-item strong {
  font-size: var(--font-size-3xl);
  color: var(--primary-dark);
}

.meta-item span {
  color: var(--neutral-medium-gray);
}

/* ============ 公司信息 ============ */
.company-facts {
  background: var(--neutral-white);
}

.facts-grid {
  gap: var(--spacing-2xl);
}

.fact-card {
  background: var(--neutral-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--neutral-gray);
}

.fact-card h3 {
  margin-bottom: var(--spacing-sm);
}

.fact-card p {
  margin-bottom: var(--spacing-sm);
  color: var(--neutral-dark-gray);
}

.fact-card span {
  color: var(--neutral-medium-gray);
}

/* ============ CTA ============ */
.cta-panel {
  background: linear-gradient(135deg, var(--primary-dark) 0%, #0c1d46 100%);
  color: var(--neutral-white);
  padding: var(--spacing-4xl) 0;
}

.cta-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-3xl);
  flex-wrap: wrap;
}

.cta-content h2 {
  color: var(--neutral-white);
  margin-bottom: var(--spacing-md);
}

.cta-content p {
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
  max-width: 640px;
}

.cta-actions {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.cta-actions .btn-outline {
  color: var(--neutral-white);
  border-color: rgba(255, 255, 255, 0.7);
}

.cta-actions .btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--neutral-white);
}

/* ============ 页脚 ============ */
.footer {
  background: linear-gradient(135deg, #0f1b3d 0%, #132b63 100%);
  color: var(--neutral-white);
  padding: var(--spacing-4xl) var(--spacing-lg) var(--spacing-2xl);
  margin-top: var(--spacing-4xl);
}

.footer-top {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-2xl);
  align-items: start;
  margin-bottom: var(--spacing-2xl);
}

.footer-logo {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-main) 100%);
  color: var(--neutral-white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-extrabold);
  font-size: var(--font-size-lg);
  margin-right: var(--spacing-md);
  box-shadow: var(--shadow-md);
}

.footer-brand {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.footer-brand h4 {
  margin: 0 0 var(--spacing-sm);
  color: var(--neutral-white);
}

.footer-brand p {
  margin: 0 0 var(--spacing-sm);
  color: rgba(255, 255, 255, 0.8);
}

.footer-hotline a {
  color: var(--neutral-white);
  font-weight: var(--font-weight-bold);
}

.footer-section h4 {
  color: var(--accent-gold-light);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-lg);
}

.footer-section ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-section li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--transition-fast);
}

.footer-section a:hover {
  color: var(--accent-gold-light);
}

.footer-section p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: var(--spacing-lg);
  margin-top: var(--spacing-lg);
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
}

.footer-bottom p {
  margin-bottom: var(--spacing-sm);
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .hero {
    padding: var(--spacing-4xl) 0;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
  }
  
  .service-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-stats {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }
  
  .filter-bar {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
  
  .certificate-slider {
    flex-direction: column;
    align-items: stretch;
  }
  
  .slider-btn {
    align-self: flex-end;
  }
  
  .cta-content {
    flex-direction: column;
    align-items: flex-start;
  }
}