/* ============================================
   华春有机硅材料有限公司 - 组件样式
   ============================================ */

@import url('layout.css');

/* ========== 卡片组件 ========== */
.card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

.card-header {
  padding: var(--spacing-6);
  background-color: var(--color-light-gray);
  border-bottom: var(--border-width-1) solid var(--border-color);
}

.card-body {
  padding: var(--spacing-6);
}

.card-footer {
  padding: var(--spacing-4) var(--spacing-6);
  background-color: var(--color-light-gray);
  border-top: var(--border-width-1) solid var(--border-color);
}

.card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.card-title {
  margin-bottom: var(--spacing-3);
  color: var(--color-primary);
}

.card-text {
  color: var(--color-gray-dark);
  line-height: var(--line-height-relaxed);
}

/* ========== 英雄区域 ========== */
.hero {
  position: relative;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  overflow: hidden;
  margin-bottom: var(--spacing-20);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="1200" height="600" fill="url(%23grid)"/></svg>');
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  padding: var(--spacing-12) var(--spacing-6);
}

.hero h1 {
  color: var(--color-white);
  font-size: var(--font-size-5xl);
  margin-bottom: var(--spacing-4);
  line-height: var(--line-height-tight);
}

.hero p {
  font-size: var(--font-size-xl);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-8);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-4);
  justify-content: center;
  flex-wrap: wrap;
}

.hero .btn {
  min-width: 150px;
}

.hero .btn-primary {
  background-color: var(--color-accent);
  color: var(--color-primary);
}

.hero .btn-primary:hover {
  background-color: var(--color-accent-light);
}

.hero .btn-outline {
  border-color: var(--color-white);
  color: var(--color-white);
}

.hero .btn-outline:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
}

/* ========== 特性区域 ========== */
.features {
  padding: var(--spacing-16) var(--spacing-6);
  background-color: var(--color-light-gray);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-8);
  max-width: var(--max-width-container);
  margin: 0 auto;
}

.feature-item {
  text-align: center;
  padding: var(--spacing-6);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-4);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-3xl);
  color: var(--color-white);
}

.feature-item h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-3);
}

.feature-item p {
  color: var(--color-gray-dark);
  font-size: var(--font-size-sm);
}

/* ========== 统计数据区域 ========== */
.stats {
  padding: var(--spacing-16) var(--spacing-6);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
}

.stats-container {
  max-width: var(--max-width-container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-8);
  text-align: center;
}

.stat-item h3 {
  font-size: var(--font-size-4xl);
  color: var(--color-accent);
  margin-bottom: var(--spacing-2);
}

.stat-item p {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-lg);
}

/* ========== 产品展示区域 ========== */
.product-showcase {
  padding: var(--spacing-16) var(--spacing-6);
}

.product-showcase-container {
  max-width: var(--max-width-container);
  margin: 0 auto;
}

.showcase-title {
  text-align: center;
  margin-bottom: var(--spacing-12);
}

.showcase-title h2 {
  margin-bottom: var(--spacing-4);
}

.showcase-title p {
  font-size: var(--font-size-lg);
  color: var(--color-gray-dark);
  max-width: 600px;
  margin: 0 auto;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-8);
}

.product-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-base);
}

.product-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-8px);
}

.product-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  background-color: var(--color-light-gray);
}

.product-info {
  padding: var(--spacing-6);
}

.product-category {
  display: inline-block;
  background-color: var(--color-accent);
  color: var(--color-white);
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  margin-bottom: var(--spacing-3);
  font-weight: var(--font-weight-semibold);
}

.product-name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-2);
}

.product-description {
  font-size: var(--font-size-sm);
  color: var(--color-gray-dark);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-4);
}

.product-link {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
  transition: all var(--transition-fast);
}

.product-link:hover {
  color: var(--color-accent-dark);
  text-decoration: underline;
}

/* ========== 通用区块 ========== */
.section {
  padding: var(--spacing-16) var(--spacing-6);
}

.section-light {
  background-color: var(--color-light-gray);
}

.section-dark {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
}

.section-dark h2,
.section-dark h3,
.section-dark h4,
.section-dark p {
  color: var(--color-white);
}

.section-gradient {
  background: radial-gradient(circle at top left, rgba(0, 191, 255, 0.2), transparent 50%),
              radial-gradient(circle at bottom right, rgba(255, 153, 0, 0.15), transparent 60%),
              linear-gradient(135deg, rgba(0, 51, 102, 0.95) 0%, rgba(0, 31, 63, 0.95) 100%);
  color: var(--color-white);
}

.section-header {
  max-width: 720px;
  margin: 0 auto var(--spacing-12) auto;
  text-align: center;
}

.section-header h2 {
  margin-bottom: var(--spacing-4);
}

.section-header p {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.85);
}

.section-light .section-header p,
.section .section-header p {
  color: var(--color-gray-dark);
}

.section-subtitle {
  display: inline-block;
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background-color: rgba(0, 191, 255, 0.12);
  color: var(--color-accent);
  margin-bottom: var(--spacing-3);
}

/* ========== 分子风格英雄区 ========== */
.hero-molecule {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: var(--spacing-16) var(--spacing-6);
  background: linear-gradient(135deg, #020b22 0%, #021a3a 60%, #043d6d 100%);
  color: var(--color-white);
}

.hero-molecule::before,
.hero-molecule::after {
  content: '';
  position: absolute;
  pointer-events: none;
  border-radius: 50%;
  background: radial-gradient(circle at center, rgba(0, 191, 255, 0.35), transparent 60%);
  filter: blur(0);
}

.hero-molecule::before {
  width: 480px;
  height: 480px;
  top: -120px;
  right: -120px;
}

.hero-molecule::after {
  width: 360px;
  height: 360px;
  bottom: -120px;
  left: -80px;
  background: radial-gradient(circle at center, rgba(255, 153, 0, 0.25), transparent 60%);
}

.hero-molecule .hero-content {
  position: relative;
  z-index: 2;
  max-width: 620px;
  text-align: left;
}

.hero-molecule .hero-content h1 {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-4);
}

.hero-molecule .hero-content p {
  font-size: var(--font-size-xl);
  color: rgba(255, 255, 255, 0.85);
}

.hero-molecule .hero-buttons {
  justify-content: flex-start;
  margin-top: var(--spacing-6);
}

.hero-visual {
  position: relative;
  z-index: 2;
  flex: 1;
  max-width: 520px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-left: var(--spacing-12);
}

.hero-visual img {
  width: 100%;
  max-width: 460px;
  border-radius: var(--border-radius-2xl);
  box-shadow: var(--shadow-2xl);
  border: var(--border-width-2) solid rgba(0, 191, 255, 0.35);
}

.hero-visual::after {
  content: '';
  position: absolute;
  inset: -30px;
  border-radius: var(--border-radius-2xl);
  border: var(--border-width-1) dashed rgba(0, 191, 255, 0.4);
  transform: rotate(-4deg);
}

.hero-molecule .molecule-scene {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.molecule {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.9), rgba(0, 191, 255, 0.2));
  box-shadow: 0 0 20px rgba(0, 191, 255, 0.5);
  opacity: 0.7;
  animation: floatMolecule 16s linear infinite;
}

.molecule::after {
  content: '';
  position: absolute;
  width: 70%;
  height: 70%;
  top: 15%;
  left: 15%;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.molecule.small {
  width: 18px;
  height: 18px;
}

.molecule.medium {
  width: 26px;
  height: 26px;
}

.molecule.large {
  width: 36px;
  height: 36px;
}

.molecule.delay-1 { animation-delay: -4s; }
.molecule.delay-2 { animation-delay: -8s; }
.molecule.delay-3 { animation-delay: -12s; }
.molecule.delay-4 { animation-delay: -16s; }

@keyframes floatMolecule {
  0% {
    transform: translateY(0) translateX(0) scale(1);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  50% {
    transform: translateY(-80px) translateX(20px) scale(1.05);
  }
  100% {
    transform: translateY(-180px) translateX(-30px) scale(1.08);
    opacity: 0;
  }
}

.hero-metrics {
  margin-top: var(--spacing-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-6);
}

.hero-metric {
  min-width: 140px;
}

.hero-metric h3 {
  font-size: var(--font-size-4xl);
  color: var(--color-accent);
  margin-bottom: var(--spacing-1);
}

.hero-metric p {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

/* ========== 指标与亮点 ========== */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-6);
}

.metric-card {
  background: var(--color-white);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-6);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.metric-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 191, 255, 0.08), rgba(0, 51, 102, 0.08));
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.metric-label {
  font-size: var(--font-size-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--spacing-2);
}

.metric-value {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-2);
}

.metric-desc {
  color: var(--color-gray-dark);
}

/* ========== 六角格布局 ========== */
.hex-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-8);
  position: relative;
}

.hex-card {
  position: relative;
  padding: var(--spacing-6);
  background: linear-gradient(135deg, rgba(0, 51, 102, 0.85), rgba(0, 191, 255, 0.35));
  color: var(--color-white);
  border-radius: 24px;
  clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hex-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-card-hover);
}

.hex-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-4);
}

.hex-title {
  font-size: var(--font-size-xl);
  color: var(--color-white);
  margin-bottom: var(--spacing-3);
}

.hex-desc {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--font-size-sm);
}

.hex-link {
  margin-top: var(--spacing-4);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.9);
  text-decoration: underline;
}

/* ========== 标签与徽章 ========== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  background-color: rgba(0, 191, 255, 0.12);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.badge-success {
  background-color: rgba(40, 167, 69, 0.12);
  color: var(--color-success);
}

.badge-warning {
  background-color: rgba(255, 193, 7, 0.12);
  color: var(--color-warning);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: currentColor;
}

/* ========== 卡片扩展 ========== */
.card-elevated {
  position: relative;
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background-color: var(--color-white);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card-elevated:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card-hover);
}

.card-elevated img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.card-elevated .card-body {
  padding: var(--spacing-6);
}

.card-meta {
  display: flex;
  gap: var(--spacing-4);
  font-size: var(--font-size-xs);
  color: var(--color-gray-dark);
  margin-bottom: var(--spacing-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.list-check {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--spacing-2);
}

.list-check li {
  position: relative;
  padding-left: var(--spacing-5);
  color: var(--color-gray-dark);
}

.list-check li::before {
  content: '✔';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-accent);
}

/* ========== 实验室&研发模块 ========== */
.lab-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-6);
}

.lab-card {
  padding: var(--spacing-6);
  border-radius: var(--border-radius-xl);
  background: linear-gradient(145deg, rgba(0, 191, 255, 0.15), rgba(0, 51, 102, 0.05));
  border: 1px solid rgba(0, 191, 255, 0.15);
  box-shadow: var(--shadow-sm);
}

.lab-card h4 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-3);
}

.lab-card p {
  color: var(--color-gray-dark);
  font-size: var(--font-size-sm);
}

.timeline {
  position: relative;
  padding-left: var(--spacing-10);
  display: grid;
  gap: var(--spacing-8);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, rgba(0, 191, 255, 0.6), rgba(0, 51, 102, 0.6));
}

.timeline-item {
  position: relative;
  padding: var(--spacing-4) var(--spacing-6);
  border-radius: var(--border-radius-lg);
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -36px;
  top: 16px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 3px solid var(--color-white);
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  box-shadow: 0 0 0 4px rgba(0, 191, 255, 0.2);
}

.timeline-year {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-2);
}

.timeline-desc {
  color: var(--color-gray-dark);
}

/* ========== 产品筛选 ========== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-6);
}

.filter-button {
  padding: var(--spacing-2) var(--spacing-5);
  border-radius: var(--border-radius-full);
  border: 1px solid rgba(0, 191, 255, 0.3);
  background-color: rgba(0, 191, 255, 0.08);
  color: var(--color-accent);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-button:hover,
.filter-button.active {
  background-color: var(--color-accent);
  color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 191, 255, 0.2);
}

.product-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-6);
}

.product-card-advanced {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-card);
  background-color: var(--color-white);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.product-card-advanced:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card-hover);
}

.product-card-advanced img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.product-card-advanced .card-body {
  padding: var(--spacing-6);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  flex: 1;
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
}

.tag {
  display: inline-block;
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--border-radius-full);
  background-color: rgba(0, 51, 102, 0.08);
  color: var(--color-primary);
  font-size: var(--font-size-xs);
}

.tag-accent {
  background-color: rgba(0, 191, 255, 0.15);
  color: var(--color-accent);
}

/* ========== 解决方案模块 ========== */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-6);
}

.solution-card {
  padding: var(--spacing-6);
  border-radius: var(--border-radius-xl);
  background-color: var(--color-white);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.solution-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card-hover);
}

.solution-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 191, 255, 0.12), rgba(0, 51, 102, 0.12));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.solution-card:hover::after {
  opacity: 1;
}

.solution-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-4);
}

.solution-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(0, 191, 255, 0.2), rgba(0, 51, 102, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
}

.solution-features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--spacing-2);
}

.solution-features li {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  color: var(--color-gray-dark);
}

.solution-features li::before {
  content: '•';
  color: var(--color-accent);
  font-weight: var(--font-weight-bold);
}

/* ========== 案例展示 ========== */
.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--spacing-6);
}

.case-card {
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  background-color: var(--color-white);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.case-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card-hover);
}

.case-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.case-card .card-body {
  padding: var(--spacing-6);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.case-meta {
  display: flex;
  gap: var(--spacing-4);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-gray-dark);
}

.case-title {
  font-size: var(--font-size-xl);
  color: var(--color-primary);
}

.case-desc {
  color: var(--color-gray-dark);
  flex: 1;
}

.case-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
}

.case-link::after {
  content: '→';
  font-size: var(--font-size-lg);
}

/* ========== 新闻模块 ========== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-6);
}

.news-card {
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  background-color: var(--color-white);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  display: flex;
  flex-direction: column;
}

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

.news-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.news-card .card-body {
  padding: var(--spacing-6);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  flex: 1;
}

.news-meta {
  font-size: var(--font-size-xs);
  color: var(--color-gray-dark);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.news-title {
  font-size: var(--font-size-lg);
  color: var(--color-primary);
}

.news-excerpt {
  color: var(--color-gray-dark);
  flex: 1;
}

.news-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
}

.news-link::after {
  content: '→';
}

/* ========== 质量认证模块 ========== */
.quality-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-6);
}

.quality-card {
  padding: var(--spacing-6);
  border-radius: var(--border-radius-xl);
  background-color: var(--color-white);
  box-shadow: var(--shadow-card);
  border-left: 4px solid var(--color-accent);
}

.quality-card h4 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-3);
}

.quality-card p {
  color: var(--color-gray-dark);
  font-size: var(--font-size-sm);
}

.certificate-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-4);
}

.certificate-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-4);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.certificate-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: var(--border-radius-base);
  margin-bottom: var(--spacing-3);
}

.certificate-card h5 {
  font-size: var(--font-size-base);
  color: var(--color-primary);
}

/* ========== CTA 模块 ========== */
.cta-section {
  position: relative;
  padding: var(--spacing-16) var(--spacing-6);
  background: linear-gradient(120deg, rgba(0, 51, 102, 0.95), rgba(0, 191, 255, 0.85));
  color: var(--color-white);
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 60%;
  height: 180%;
  background: radial-gradient(circle at center, rgba(255, 255, 255, 0.18), transparent 70%);
  transform: rotate(18deg);
}

.cta-container {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.cta-container h2 {
  color: var(--color-white);
  margin-bottom: var(--spacing-4);
}

.cta-container p {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--spacing-6);
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-4);
  flex-wrap: wrap;
}

.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: var(--color-white);
  background: transparent;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* ========== 联系方式模块 ========== */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--spacing-8);
}

.contact-card {
  padding: var(--spacing-6);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-card);
  background-color: var(--color-white);
}

.contact-info {
  display: grid;
  gap: var(--spacing-4);
}

.contact-item {
  display: flex;
  gap: var(--spacing-4);
  align-items: flex-start;
}

.contact-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(0, 191, 255, 0.2), rgba(0, 51, 102, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  color: var(--color-primary);
}

.contact-label {
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
}

.contact-detail {
  color: var(--color-gray-dark);
}

.map-placeholder {
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: linear-gradient(135deg, rgba(0, 51, 102, 0.85), rgba(0, 191, 255, 0.6));
  position: relative;
  min-height: 300px;
}

.map-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.map-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 51, 102, 0.6), rgba(0, 191, 255, 0.35));
}

/* ========== 团队模块 ========== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-6);
}

.team-card {
  text-align: center;
  background-color: var(--color-white);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-card);
  padding: var(--spacing-6);
  position: relative;
  overflow: hidden;
}

.team-card img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: var(--spacing-4);
  border: 4px solid rgba(0, 191, 255, 0.35);
}

.team-name {
  font-size: var(--font-size-xl);
  color: var(--color-primary);
}

.team-role {
  font-size: var(--font-size-sm);
  color: var(--color-accent);
  margin-bottom: var(--spacing-2);
}

.team-desc {
  color: var(--color-gray-dark);
  font-size: var(--font-size-sm);
}

/* ========== 招聘模块 ========== */
.job-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-6);
}

.job-card {
  padding: var(--spacing-6);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-card);
  background-color: var(--color-white);
  border-left: 4px solid var(--color-accent);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.job-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-4);
}

.job-title {
  font-size: var(--font-size-xl);
  color: var(--color-primary);
}

.job-location {
  font-size: var(--font-size-sm);
  color: var(--color-gray-dark);
}

.job-meta {
  display: flex;
  gap: var(--spacing-3);
  flex-wrap: wrap;
}

.job-meta span {
  font-size: var(--font-size-xs);
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--border-radius-full);
  background-color: rgba(0, 51, 102, 0.08);
  color: var(--color-primary);
}

.job-actions {
  display: flex;
  gap: var(--spacing-3);
  flex-wrap: wrap;
}

/* ========== 媒体与图库 ========== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-4);
}

.gallery-item {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.gallery-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: var(--spacing-3) var(--spacing-4);
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.85));
  color: var(--color-white);
  font-size: var(--font-size-sm);
}

/* ========== 媒体报道标签 ========== */
.media-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-4);
}

.media-tag {
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  background-color: rgba(0, 191, 255, 0.12);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ========== 媒体引用 ========== */
.quote-card {
  padding: var(--spacing-6);
  border-radius: var(--border-radius-xl);
  background: linear-gradient(135deg, rgba(0, 191, 255, 0.12), rgba(0, 51, 102, 0.12));
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.quote-text {
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  line-height: var(--line-height-relaxed);
}

.quote-author {
  font-size: var(--font-size-sm);
  color: var(--color-gray-dark);
}

/* ========== 页脚合作伙伴展示 ========== */
.logo-cloud {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--spacing-6);
  align-items: center;
  justify-items: center;
}

.logo-cloud img {
  max-width: 140px;
  filter: grayscale(100%);
  opacity: 0.8;
  transition: filter var(--transition-fast), opacity var(--transition-fast);
}

.logo-cloud img:hover {
  filter: grayscale(0);
  opacity: 1;
}

/* ========== 响应式调整 ========== */
@media (max-width: 1200px) {
  .hero-molecule {
    flex-direction: column;
    text-align: center;
  }

  .hero-molecule .hero-content {
    text-align: center;
    margin-bottom: var(--spacing-8);
  }

  .hero-molecule .hero-buttons {
    justify-content: center;
  }

  .hero-visual {
    margin-left: 0;
  }
}

@media (max-width: 1024px) {
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .lab-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .section {
    padding: var(--spacing-12) var(--spacing-4);
  }

  .hero-molecule {
    min-height: 520px;
  }

  .hex-card {
    clip-path: none;
    border-radius: var(--border-radius-xl);
  }

  .metrics-grid,
  .lab-grid {
    grid-template-columns: 1fr;
  }

  .product-card-advanced img,
  .case-card img,
  .news-card img {
    height: 200px;
  }
}

/* ========== 证明/案例区域 ========== */
.testimonials {
  padding: var(--spacing-16) var(--spacing-6);
  background-color: var(--color-light-gray);
}

.testimonials-container {
  max-width: var(--max-width-container);
  margin: 0 auto;
}

.testimonials-title {
  text-align: center;
  margin-bottom: var(--spacing-12);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-8);
}

.testimonial-card {
  background-color: var(--color-white);
  padding: var(--spacing-6);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border-left: var(--border-width-4) solid var(--color-accent);
}

.testimonial-text {
  font-style: italic;
  color: var(--color-gray-dark);
  margin-bottom: var(--spacing-4);
  line-height: var(--line-height-relaxed);
}

.testimonial-author {
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-1);
}

.testimonial-position {
  font-size: var(--font-size-sm);
  color: var(--color-gray-dark);
}

.testimonial-stars {
  color: var(--color-highlight);
  margin-bottom: var(--spacing-3);
}

/* ========== 警告框 ========== */
.alert {
  padding: var(--spacing-4) var(--spacing-6);
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--spacing-4);
  border-left: var(--border-width-4) solid;
}

.alert-success {
  background-color: rgba(40, 167, 69, 0.1);
  border-color: var(--color-success);
  color: var(--color-success);
}

.alert-error {
  background-color: rgba(220, 53, 69, 0.1);
  border-color: var(--color-error);
  color: var(--color-error);
}

.alert-warning {
  background-color: rgba(255, 193, 7, 0.1);
  border-color: var(--color-warning);
  color: #856404;
}

.alert-info {
  background-color: rgba(23, 162, 184, 0.1);
  border-color: var(--color-info);
  color: var(--color-info);
}

/* ========== 响应式设计 ========== */
@media (max-width: 1024px) {
  .hero {
    min-height: 400px;
  }
  
  .hero h1 {
    font-size: var(--font-size-4xl);
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stats-container {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .hero {
    min-height: 300px;
  }
  
  .hero h1 {
    font-size: var(--font-size-3xl);
  }
  
  .hero p {
    font-size: var(--font-size-base);
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .hero .btn {
    width: 100%;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-container {
    grid-template-columns: 1fr;
  }
  
  .product-grid {
    grid-template-columns: 1fr;
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-buttons {
    flex-direction: column;
  }
  
  .cta-buttons .btn {
    width: 100%;
  }
  
  .features,
  .stats,
  .product-showcase,
  .testimonials,
  .cta-section {
    padding: var(--spacing-12) var(--spacing-4);
  }
}