/**
 * ============================================================
 * 江苏志博电气 — 组件样式
 * Zhibo Electric — Component Styles
 * ============================================================
 *
 * 本文件包含所有可复用组件的样式：
 * 1. 按钮（Button）                   10. 产品详情弹窗
 * 2. 卡片（Card）                     11. 工厂图集
 * 3. 产品卡片（Product Card）         12. 证书横向滚动展示
 * 4. 分类卡片（Category Card）        13. 证书灯箱
 * 5. 统计数字卡片（Stat Card）        14. 联系页面大卡片
 * 6. 特色卡片（Feature Card）         15. 联系底部网格 + 信任卡片
 * 7. 证书卡片（Cert Card）            16. 表单组件
 * 8. 公司介绍区块（About）            17. 页面横幅
 * 9. 时间轴（Timeline）               18. 产品筛选标签
 */

/* ============================================================
   按钮组件 (BUTTONS)
   ============================================================ */

/* 按钮基础样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-size: 0.9375rem;
  font-weight: var(--fw-semibold);
  border-radius: var(--btn-radius);
  transition: all var(--transition-spring);
  white-space: nowrap;
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;                  /* 隐藏水波纹溢出 */
}

/* 点击时微缩反馈 */
.btn:active { transform: translateY(0) scale(0.98); }

/* 主要按钮（蓝色渐变） */
.btn-primary {
  background: var(--color-primary-gradient);
  color: #fff;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-primary);
}

/* 次要按钮（描边样式，悬停变为实心渐变） */
.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary-gradient);
  color: #fff;
  transform: translateY(-2px);
  border-color: transparent;
  box-shadow: var(--shadow-glow-primary);
}

/* CTA 号召性按钮（蓝绿渐变 + 渐变位移动画） */
.btn-cta {
  background: linear-gradient(135deg, #0055EE, #0080FF, #00C896);
  background-size: 200% 200%;
  color: #fff;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  box-shadow: var(--shadow-glow-primary);
  animation: gradientShift 6s ease infinite;
}

.btn-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 0 1px rgba(0,85,238,0.15), 0 8px 32px rgba(0,85,238,0.25);
}

/* WhatsApp 按钮 */
.btn-whatsapp {
  background-color: var(--color-whatsapp);
  color: #fff;
}

.btn-whatsapp:hover {
  background-color: #1DA851;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(37,211,102,0.35), 0 0 0 4px rgba(37,211,102,0.08);
}

.btn-whatsapp svg {
  width: 20px;
  height: 20px;
}

/* ============================================================
   卡片组件 (CARDS)
   ============================================================ */

/* 基础卡片：白底、圆角、阴影、悬停上浮 */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 1.75rem;
  border: 1px solid transparent;
  transition: transform var(--transition-spring), box-shadow var(--transition-spring), border-color var(--transition-base);
}

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

/* 玻璃态卡片变体：半透明 + 模糊背景 */
.card-glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
  border: 1px solid var(--glass-border);
}

/* ============================================================
   产品卡片 (PRODUCT CARD)
   用于产品列表的瀑布流布局卡片
   ============================================================ */
.product-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  transition: transform var(--transition-spring), box-shadow var(--transition-spring);
}

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

/* 产品图片容器：4:3 比例 */
.product-card-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background: var(--color-bg);
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

/* 悬停时图片轻微放大 */
.product-card:hover .product-card-image img {
  transform: scale(1.05);
}

/* 产品图片悬停遮罩层（底部渐变 + 查看按钮） */
.product-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8,12,20,0.85) 0%, rgba(8,12,20,0.15) 60%, transparent 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.product-card:hover .product-card-overlay { opacity: 1; }

.product-card-overlay .btn {
  transform: translateY(10px);       /* 按钮初始下移 */
  transition: transform var(--transition-spring);
}

.product-card:hover .product-card-overlay .btn { transform: translateY(0); }

/* 产品卡片文字区域 */
.product-card-body { padding: 1.5rem; }

.product-card-body h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--color-dark);
}

/* 产品标签列表 */
.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-bottom: 0.5rem;
}

/* 单个产品标签 */
.product-tag {
  font-size: 0.6875rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.04em;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* ============================================================
   分类卡片 (CATEGORY CARDS) — 首页用
   ============================================================ */
.category-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 2.25rem 1.75rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-spring), box-shadow var(--transition-spring), border-color var(--transition-base);
  border: 2px solid transparent;     /* 预留边框空间，悬停时显示蓝色边框 */
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.category-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

/* 分类图标容器 */
.category-card .category-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-secondary-light));
  margin-bottom: 1.25rem;
  transition: transform var(--transition-spring), box-shadow var(--transition-base);
}

.category-card:hover .category-icon {
  transform: scale(1.08);
  box-shadow: 0 0 24px rgba(0,85,238,0.12);
}

.category-card .category-icon svg {
  width: 34px;
  height: 34px;
  color: var(--color-primary);
}

.category-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
  color: var(--color-dark);
}

.category-card p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* ============================================================
   统计数字卡片 (STAT CARD) — 首页用
   ============================================================ */
.stat-card {
  text-align: center;
  padding: 2.25rem 1.25rem;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  transition: transform var(--transition-spring), box-shadow var(--transition-spring);
}

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

/* 统计数字：渐变文字 + 等宽字体（数字对齐） */
.stat-number {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  font-weight: var(--fw-extrabold);
  background: var(--color-primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;  /* 等宽数字，防止跳动 */
  line-height: 1;
}

.stat-label {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-top: 0.5rem;
}

/* ============================================================
   特色卡片 (FEATURE CARD) — 为什么选择我们
   ============================================================ */
.feature-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 2.25rem;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-primary);  /* 左侧蓝色强调线 */
  transition: transform var(--transition-spring), box-shadow var(--transition-spring);
  position: relative;
  overflow: hidden;
}

/* 左侧渐变条（悬停时加宽） */
.feature-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--color-primary-gradient);
  transition: width 0.3s ease;
}

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

.feature-card .feature-icon {
  width: 48px;
  height: 48px;
  color: var(--color-primary);
  margin-bottom: 1rem;
  transition: transform var(--transition-spring), color var(--transition-base);
}

.feature-card:hover .feature-icon {
  transform: scale(1.15);
  color: var(--color-secondary);
}

.feature-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
  color: var(--color-dark);
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================================
   证书卡片 (CERTIFICATION CARD) — 关于我们页面
   ============================================================ */
.cert-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  border: 1px solid var(--color-border-light);
  transition: transform var(--transition-spring), box-shadow var(--transition-spring);
}

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

.cert-card .cert-icon {
  width: 42px;
  height: 42px;
  flex-shrink: 0;                    /* 图标不缩小 */
  color: var(--color-secondary);
}

.cert-card h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
  color: var(--color-dark);
}

.cert-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ============================================================
   公司介绍区块 (COMPANY INTRODUCTION) — 关于我们页面
   ============================================================ */

/* 数据亮点四栏网格 */
.intro-highlights {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.intro-highlight {
  text-align: center;
  padding: 1.75rem 1rem;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-spring), box-shadow var(--transition-spring);
}

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

/* 亮点数字 */
.intro-highlight-number {
  font-size: 1.75rem;
  font-weight: var(--fw-extrabold);
  background: var(--color-primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.intro-highlight-number small {
  font-size: 0.9rem;
  font-weight: var(--fw-medium);
}

/* 亮点标签 */
.intro-highlight-label {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  font-weight: var(--fw-medium);
}

/* 公司介绍正文 */
.intro-body {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-text-secondary);
}

.intro-body p {
  margin-bottom: 1.25rem;
}

/* 引用块（CEO 致辞等） */
.intro-quote {
  margin: 2rem 0 0;
  padding: 1.75rem 2rem;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-secondary-light));
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-primary);
  position: relative;
}

/* 左侧大引号装饰 */
.intro-quote::before {
  content: '"';
  position: absolute;
  top: -0.5rem;
  left: 1.25rem;
  font-size: 4rem;
  line-height: 1;
  color: var(--color-primary);
  opacity: 0.15;
  font-family: Georgia, serif;
}

.intro-quote p {
  margin: 0;
  font-size: 0.95rem;
  font-weight: var(--fw-medium);
  color: var(--color-dark);
  line-height: 1.75;
  position: relative;
  z-index: 1;
}

/* 响应式：移动端两栏 */
@media (max-width: 768px) {
  .intro-highlights {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.85rem;
  }

  .intro-highlight {
    padding: 1.25rem 0.75rem;
  }

  .intro-highlight-number {
    font-size: 1.4rem;
  }

  .intro-quote {
    padding: 1.25rem 1.25rem;
  }
}

/* ============================================================
   时间轴 (TIMELINE) — 关于我们页面
   居中竖线 + 左右交替的内容布局
   ============================================================ */
.timeline {
  position: relative;
  padding: 2rem 0;
}

/* 中间竖线（蓝 → 绿渐变） */
.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-secondary));
  transform: translateX(-50%);
  border-radius: 3px;
}

/* 每个时间轴条目 */
.timeline-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 3rem;
  position: relative;
}

/* 奇数条目：年份在左，内容在右 */
.timeline-item:nth-child(odd) { flex-direction: row; }
/* 偶数条目：内容在左，年份在右 */
.timeline-item:nth-child(even) { flex-direction: row-reverse; }

/* 时间轴圆点（蓝色渐变 + 外发光） */
.timeline-dot {
  position: absolute;
  left: 50%;
  top: 0.25rem;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary-gradient);
  border: 3px solid var(--color-bg);
  transform: translateX(-50%);
  z-index: 1;
  box-shadow: 0 0 0 6px rgba(0,85,238,0.12);
}

/* 年份文字 */
.timeline-year {
  font-size: 1.5rem;
  font-weight: var(--fw-extrabold);
  color: var(--color-primary);
  min-width: 100px;
  text-align: center;
}

.timeline-item:nth-child(odd) .timeline-year { text-align: right; padding-right: 3rem; }
.timeline-item:nth-child(even) .timeline-year { text-align: left; padding-left: 3rem; }

/* 时间轴内容卡片 */
.timeline-content {
  background: var(--color-surface);
  border-radius: var(--card-radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-card);
  flex: 1;
  max-width: 400px;
}

.timeline-content h4 {
  color: var(--color-dark);
  margin-bottom: 0.25rem;
}

.timeline-content p {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* 移动端：竖线左移，全部左对齐 */
@media (max-width: 768px) {
  .timeline::before { left: 1.5rem; }
  .timeline-dot { left: 1.5rem; }
  .timeline-item, .timeline-item:nth-child(even) { flex-direction: row; }
  .timeline-year { min-width: 0; text-align: left !important; padding-left: 3rem !important; padding-right: 0 !important; }
  .timeline-content { max-width: none; }
}

/* ============================================================
   产品筛选标签 (FILTER PILLS) — 产品页面
   ============================================================ */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 2.5rem;
}

/* 筛选标签（胶囊形状） */
.filter-pill {
  padding: 0.55rem 1.35rem;
  font-size: 0.875rem;
  font-weight: var(--fw-medium);
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-border);
  color: var(--color-text-secondary);
  transition: all var(--transition-base);
  cursor: pointer;
}

.filter-pill:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

/* 激活状态：蓝色渐变填充 */
.filter-pill.active {
  background: var(--color-primary-gradient);
  border-color: transparent;
  color: #fff;
  box-shadow: var(--shadow-glow-primary);
}

/* ============================================================
   产品瀑布流布局 (PRODUCT WATERFALL)
   使用 CSS Grid 实现三列均匀布局
   ============================================================ */
.product-waterfall {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--card-gap);
}

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

@media (max-width: 640px) {
  .product-waterfall { grid-template-columns: 1fr; }
}

/* ============================================================
   产品详情弹窗 (PRODUCT DETAIL MODAL)
   双栏布局：左侧图片+亮点 | 右侧规格+操作
   ============================================================ */

/* 弹窗遮罩层 */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5,8,18,0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: var(--z-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;              /* 隐藏时不拦截点击 */
  transition: opacity 0.35s ease;
}

.modal-overlay.open { opacity: 1; pointer-events: auto; }

/* 弹窗主体 */
.modal {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  max-width: 1060px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-modal);
  border: 1px solid rgba(255,255,255,0.08);
  transform: scale(0.92) translateY(16px);  /* 初始缩小+下移 */
  transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
  padding-top: 0.25rem;
}

.modal-overlay.open .modal { transform: scale(1) translateY(0); }

/* 关闭按钮（固定在右上角） */
.modal-close {
  position: sticky;
  top: 0.75rem;
  float: right;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  margin-right: 1.25rem;
  z-index: 10;
  transition: all var(--transition-base);
}

.modal-close:hover {
  background: var(--color-primary-gradient);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--shadow-glow-primary);
}

.modal-body {
  clear: both;
  padding: 0.5rem 2.5rem 2.5rem;
}

/* ── 双栏网格布局 ── */
.modal-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

/* ── 左栏：图片 + 标签 + 亮点 + 证书 ── */
.modal-left {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* 主图片（4:3 比例，圆角） */
.modal-image-main {
  border-radius: 16px;
  overflow: hidden;
  background: #f0f2f5;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.modal-image-main img {
  width: 100%;
  display: block;
  aspect-ratio: 4/3;
  object-fit: cover;
}

/* 标签列表 */
.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

/* 亮点规格小卡片（2列网格） */
.modal-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}

.highlight-card {
  background: linear-gradient(135deg, var(--color-bg) 0%, rgba(0,168,232,0.03) 100%);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 0.75rem 0.85rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.highlight-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  border-color: rgba(0,168,232,0.25);
}

.hl-label {
  display: block;
  font-size: 0.625rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.hl-value {
  display: block;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.3;
  word-break: break-word;
}

/* 证书区块 */
.modal-certs {
  background: var(--color-bg);
  border-radius: 12px;
  padding: 1rem;
}

.modal-mini-title {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.6rem;
}

.modal-certs-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

/* 证书徽章（绿色） */
.modal-cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.35rem 0.7rem;
  background: #E8F5F0;
  color: #1B8A5A;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 600;
}

.modal-cert-badge svg {
  color: #1B8A5A;
  flex-shrink: 0;
}

/* ── 右栏：产品名 + 规格列表 + 操作按钮 ── */
.modal-right {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.modal-product-name h2 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.35;
  margin-bottom: 0;
}

/* 分隔线（渐变淡出） */
.modal-divider {
  height: 1px;
  background: linear-gradient(90deg, var(--color-border) 0%, transparent 100%);
  margin: 1.25rem 0;
}

.modal-specs-block {
  flex: 1;
}

/* 规格区块标题 */
.modal-section-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.75rem;
}

.modal-section-title svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

/* 规格网格（2列） */
.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
}

.spec-item {
  background: var(--color-bg);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  transition: background var(--transition-fast);
}

.spec-item:hover {
  background: rgba(0,168,232,0.04);
}

.spec-key {
  display: block;
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.15rem;
}

.spec-val {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
  word-break: break-word;
}

/* ── 操作按钮栏 ── */
.modal-actions {
  display: flex;
  gap: 0.75rem;
  padding-top: 1.25rem;
  margin-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.modal-actions .btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 10px;
  transition: all var(--transition-fast);
}

.modal-actions .btn-cta {
  background: var(--color-primary);
  color: #fff;
}

.modal-actions .btn-cta:hover {
  background: #0090d4;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0,168,232,0.35);
}

.modal-actions .btn-outline {
  background: transparent;
  color: var(--color-text-muted);
  border: 1.5px solid var(--color-border);
}

.modal-actions .btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ── 弹窗响应式（窄屏变为单栏） ── */
@media (max-width: 860px) {
  .modal { border-radius: 16px; max-height: 92vh; }
  .modal-body { padding: 0.5rem 1.25rem 1.5rem; }
  .modal-layout { grid-template-columns: 1fr; gap: 1.25rem; }
  .modal-image-main img { aspect-ratio: 16/9; }
  .modal-left { gap: 1rem; }
  .modal-highlights { grid-template-columns: 1fr 1fr; }
  .spec-grid { grid-template-columns: 1fr 1fr; }
  .modal-product-name h2 { font-size: 1.15rem; }
  .modal-actions { flex-direction: column; }
  .modal-divider { margin: 1rem 0; }
}

/* ============================================================
   工厂图集 (FACTORY GALLERY)
   ============================================================ */
.factory-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.factory-gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform var(--transition-spring), box-shadow var(--transition-spring);
  border: 1px solid var(--color-border-light);
}

.factory-gallery-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.factory-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.16,1,0.3,1);
}

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

/* 图片底部标签（半透明渐变背景） */
.factory-gallery-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
}

@media (max-width: 768px) {
  .factory-gallery { grid-template-columns: 1fr; gap: 1rem; }
}

/* ============================================================
   证书横向滚动展示 (CERTIFICATE GALLERY — Horizontal Scroll)
   按类别分组，每组一个横向滚动轨道
   ============================================================ */

/* 分类区块：白色卡片容器 */
.cert-scroll-section {
  margin-bottom: 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 1.5rem 1.5rem 0.75rem;
  transition: border-color var(--transition-base);
  position: relative;
}

.cert-scroll-section:hover {
  border-color: #D0D7E2;
}

/* 分类标题行 */
.cert-scroll-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1rem;
  padding-bottom: 0.875rem;
  border-bottom: 2px solid var(--color-primary-light);
}

/* 分类图标 */
.cert-scroll-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cert-scroll-icon svg {
  width: 20px;
  height: 20px;
}

.cert-scroll-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-dark);
  margin: 0;
}

/* 分类数量徽章 */
.cert-scroll-count {
  margin-left: auto;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-bg);
  padding: 0.25rem 0.65rem;
  border-radius: 20px;
  white-space: nowrap;
}

/* 横向滚动轨道 */
.cert-scroll-track {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;     /* 滚动贴合 */
  -webkit-overflow-scrolling: touch; /* iOS 平滑滚动 */
  padding: 0.25rem 0.25rem 0.875rem;
  position: relative;
  --fade-width: 60px;
}

/* 滚动包装器（用于右边缘渐变提示） */
.cert-scroll-wrapper {
  position: relative;
}

/* 右侧渐变淡出提示（表示还有更多内容） */
.cert-scroll-wrapper::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0.875rem;
  width: 60px;
  background: linear-gradient(to right, transparent, var(--color-surface));
  pointer-events: none;
  border-radius: 0 14px 0 0;
  z-index: 2;
  transition: opacity 0.3s ease;
}

/* 滚动到底后隐藏渐变 */
.cert-scroll-wrapper.scrolled-end::after {
  opacity: 0;
}

/* ── 滚动条美化 ── */
.cert-scroll-track {
  scrollbar-width: thin;
  scrollbar-color: #CDD5E0 var(--color-bg);
}

.cert-scroll-track::-webkit-scrollbar {
  height: 7px;
}

.cert-scroll-track::-webkit-scrollbar-track {
  background: var(--color-bg);
  border-radius: 10px;
  margin: 0 0.25rem;
}

.cert-scroll-track::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #BCC7D6, #CDD5E0);
  border-radius: 10px;
  border: 1px solid #E5E7EB;
}

.cert-scroll-track::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, #9AACBF, #BCC7D6);
}

/* ── 证书滚动卡片通用样式 ── */
.cert-scroll-card {
  flex: 0 0 auto;                    /* 不伸缩，保持固定宽度 */
  scroll-snap-align: start;          /* 贴合到滚动起始位置 */
  border-radius: 12px;
  overflow: hidden;
  background: var(--color-surface);
  box-shadow: 0 1px 4px rgba(0,0,0,0.06), 0 0 0 1px rgba(0,0,0,0.04);
  transition: transform 0.25s cubic-bezier(.4,0,.2,1), box-shadow 0.25s cubic-bezier(.4,0,.2,1);
  text-decoration: none;
  color: inherit;
}

.cert-scroll-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.1), 0 0 0 1px rgba(0,0,0,0.06);
}

/* ── 图片型证书卡片 ── */
.cert-scroll-card--img {
  width: 240px;
  cursor: pointer;
  position: relative;
}

.cert-scroll-card--img .cert-img-wrap {
  position: relative;
  overflow: hidden;
}

.cert-scroll-card--img img {
  width: 100%;
  aspect-ratio: 3/4;                 /* 竖版证书比例 */
  object-fit: cover;
  display: block;
  transition: transform 0.4s cubic-bezier(.4,0,.2,1);
}

.cert-scroll-card--img:hover img {
  transform: scale(1.06);
}

/* 横向变体（营业执照等横版证书） */
.cert-scroll-card--img-landscape {
  width: 360px;
}

.cert-scroll-card--img-landscape img {
  aspect-ratio: 4/3;
}

/* 图片悬停遮罩（"点击放大"提示） */
.cert-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.55) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.25s ease;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 0.75rem;
}

.cert-scroll-card--img:hover .cert-img-overlay {
  opacity: 1;
}

.cert-img-overlay span {
  color: #fff;
  font-size: 0.78rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}

.cert-img-overlay span svg {
  width: 16px;
  height: 16px;
}

/* 图片卡片标题 */
.cert-scroll-card--img .cert-img-caption {
  padding: 0.6rem 0.7rem;
  font-size: 0.72rem;
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.35;
  /* 最多显示两行，超出省略 */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  background: #FAFBFC;
  border-top: 1px solid #F0F1F3;
}

/* ── PDF 型证书卡片 ── */
.cert-scroll-card--pdf {
  width: 175px;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.75rem 1.1rem 1.25rem;
  gap: 0.85rem;
  cursor: pointer;
  min-height: 210px;
  justify-content: center;
  border: 2px solid transparent;
  transition: transform 0.25s cubic-bezier(.4,0,.2,1),
              box-shadow 0.25s cubic-bezier(.4,0,.2,1),
              border-color 0.2s ease,
              background 0.2s ease;
}

/* 悬停时变为黄色调（暗示 PDF 文档） */
.cert-scroll-card--pdf:hover {
  background: #FFFBEB;
  border-color: #FDE68A;
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.1), 0 0 0 1px rgba(251,191,36,0.2);
}

/* PDF 图标（带投影） */
.cert-pdf-icon {
  flex-shrink: 0;
  filter: drop-shadow(0 2px 6px rgba(220,38,38,0.15));
  transition: transform 0.25s ease;
}

.cert-scroll-card--pdf:hover .cert-pdf-icon {
  transform: translateY(-2px);
}

/* PDF 文件名（最多3行省略） */
.cert-pdf-name {
  font-size: 0.73rem;
  font-weight: 600;
  color: var(--color-dark);
  text-align: center;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
}

/* PDF 提示文字（悬停时显示） */
.cert-pdf-hint {
  font-size: 0.68rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.cert-scroll-card--pdf:hover .cert-pdf-hint {
  opacity: 1;
  transform: translateY(0);
}

.cert-pdf-hint svg {
  width: 13px;
  height: 13px;
}

/* ============================================================
   证书灯箱 (CERTIFICATE LIGHTBOX)
   全屏图片查看器，支持左右切换
   ============================================================ */
.cert-lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;                    /* 最高层级 */
  background: rgba(0,0,0,0.94);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(8px);
}

.cert-lightbox.open {
  opacity: 1;
  pointer-events: auto;
}

.cert-lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 6px;
  box-shadow: 0 12px 60px rgba(0,0,0,0.6);
}

/* 灯箱关闭按钮 */
.cert-lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,0.15);
  cursor: pointer;
  transition: all 0.2s ease;
  z-index: 2;
  line-height: 1;
}

.cert-lightbox-close:hover {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.35);
}

/* 左右切换按钮 */
.cert-lightbox-prev,
.cert-lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.15);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  z-index: 2;
}

.cert-lightbox-prev:hover,
.cert-lightbox-next:hover {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.35);
}

.cert-lightbox-prev { left: 1.5rem; }
.cert-lightbox-next { right: 1.5rem; }

/* ── 证书展示响应式 ── */
@media (max-width: 768px) {
  .cert-scroll-section {
    padding: 1rem 0.875rem 0.5rem;
    border-radius: 10px;
  }

  .cert-scroll-header {
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.65rem;
  }

  .cert-scroll-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
  }

  .cert-scroll-icon svg {
    width: 17px;
    height: 17px;
  }

  .cert-scroll-title {
    font-size: 0.95rem;
  }

  .cert-scroll-count {
    font-size: 0.72rem;
    padding: 0.2rem 0.5rem;
  }

  .cert-scroll-card--img {
    width: 180px;
  }

  .cert-scroll-card--img-landscape {
    width: 270px;
  }

  .cert-scroll-card--pdf {
    width: 145px;
    min-height: 175px;
    padding: 1.25rem 0.85rem 1rem;
    gap: 0.6rem;
  }

  .cert-pdf-name {
    font-size: 0.68rem;
  }

  .cert-scroll-track {
    gap: 0.75rem;
  }

  .cert-scroll-wrapper::after {
    width: 40px;
  }
}

@media (max-width: 480px) {
  .cert-scroll-card--img {
    width: 155px;
  }

  .cert-scroll-card--img-landscape {
    width: 230px;
  }

  .cert-scroll-card--pdf {
    width: 128px;
    min-height: 155px;
    padding: 1rem 0.7rem 0.85rem;
    gap: 0.5rem;
  }

  .cert-scroll-card--img .cert-img-caption {
    font-size: 0.68rem;
    padding: 0.45rem 0.5rem;
  }

  .cert-scroll-track {
    gap: 0.6rem;
  }
}

/* ============================================================
   联系页面大卡片 (CONTACT PAGE — Big Cards)
   ============================================================ */
.contact-cards-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.contact-big-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2.25rem 1.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-spring);
  box-shadow: var(--shadow-xs);
}

/* 可点击的大卡片（电话/邮箱等）悬停效果 */
a.contact-big-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFF 100%);
}

a.contact-big-card:hover .cbc-icon-ring {
  background: var(--color-primary-gradient);
  color: #fff;
  box-shadow: var(--shadow-glow-primary);
}

/* 图标圆环 */
.cbc-icon-ring {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(0,85,238,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin-bottom: 1.25rem;
  transition: all var(--transition-spring);
}

.cbc-label {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.cbc-main {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.3;
}

.cbc-sub {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 0.35rem;
}

/* ============================================================
   联系底部网格 + 信任卡片 + 地图 (CONTACT — Bottom Grid + Trust + Map)
   ============================================================ */

/* 左侧表单 + 右侧信任区 */
.contact-bottom-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: start;
}

.section-subtitle {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 1.25rem;
}

/* 信任卡片网格（2列） */
.trust-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.trust-card {
  padding: 1.35rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  transition: all var(--transition-spring);
  box-shadow: var(--shadow-xs);
}

.trust-card:hover {
  border-color: var(--color-secondary);
  box-shadow: 0 4px 20px rgba(0,200,150,0.08);
  transform: translateY(-3px);
}

.trust-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--color-secondary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
  margin-bottom: 0.85rem;
}

.trust-card h4 {
  font-size: 0.875rem;
  font-weight: var(--fw-semibold);
  margin-bottom: 0.35rem;
  color: var(--color-dark);
}

.trust-card p {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* 时区提示条 */
.timezone-bar {
  padding: 1rem 1.25rem;
  background: var(--color-accent-light);
  border: 1px solid #FDE68A;
  border-radius: var(--radius-md);
  margin-top: 1.25rem;
  font-size: 0.8125rem;
  color: #92400E;
}

/* WhatsApp 全宽按钮 */
.btn-whatsapp-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  width: 100%;
  padding: 0.9rem;
  margin-top: 0.75rem;
  background: #25D366;
  color: #fff;
  border-radius: 14px;
  font-weight: 700;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.btn-whatsapp-bar:hover {
  background: #1fb855;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37,211,102,0.3);
}

/* 地图容器 */
#contactMap {
  width: 100%;
  height: 100%;
  min-height: 450px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}

@media (max-width: 900px) {
  .contact-cards-row { grid-template-columns: 1fr; }
  .contact-bottom-grid { grid-template-columns: 1fr; gap: 2rem; }
  .trust-grid { grid-template-columns: 1fr; }
  #contactMap { min-height: 320px; }
}

/* ============================================================
   Leaflet 地图自定义标记 (LEAFLET MAP MARKER)
   ============================================================ */
.custom-marker {
  background: none;
  border: none;
}

/* 标记图钉（旋转45度的正方形） */
.marker-pin {
  width: 28px;
  height: 28px;
  border-radius: 50% 50% 50% 0;
  background: var(--color-primary);
  position: absolute;
  top: 0;
  left: 0;
  transform: rotate(-45deg);
  box-shadow: 0 4px 12px rgba(0,168,232,0.4);
  border: 3px solid #fff;
}

/* 标记脉冲波 */
.marker-pulse {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0,168,232,0.2);
  position: absolute;
  top: -6px;
  left: -6px;
  animation: markerPulse 2s ease-out infinite;
}

@keyframes markerPulse {
  0%   { transform: scale(0.5); opacity: 1; }
  100% { transform: scale(2.5); opacity: 0; }
}

/* ============================================================
   表单组件 (FORM)
   ============================================================ */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: var(--fw-medium);
  color: var(--color-text);
  margin-bottom: 0.375rem;
}

/* 输入框/下拉框/文本域通用样式 */
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  font-size: 0.9375rem;
  transition: all var(--transition-base);
}

/* 聚焦状态：蓝色边框 + 发光 */
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0,85,238,0.1), 0 0 20px rgba(0,85,238,0.06);
  background: var(--color-surface);
  outline: none;
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;                  /* 仅允许垂直方向调整大小 */
}

/* 表单验证错误状态 */
.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: var(--color-error);
}

.form-error {
  font-size: 0.8125rem;
  color: var(--color-error);
  margin-top: 0.25rem;
}

/* 表单提交成功状态 */
.form-success {
  background: #ECFDF5;
  border: 2px solid var(--color-success);
  border-radius: var(--card-radius);
  padding: 2rem;
  text-align: center;
}

.form-success svg {
  color: var(--color-success);
  margin-bottom: 1rem;
}

.form-success h3 {
  color: var(--color-success);
  margin-bottom: 0.5rem;
}

/* ============================================================
   页面横幅 (PAGE BANNER)
   深色渐变背景 + 背景图纹理，用于子页面顶部
   ============================================================ */
.page-banner {
  position: relative;
  padding: 9rem 0 5rem;
  background: linear-gradient(135deg, #080C14 0%, #0D2040 40%, #0A3560 100%);
  background-size: 200% 200%;
  animation: gradientShift 10s ease infinite;  /* 背景渐变动画 */
  color: #fff;
  text-align: center;
  overflow: hidden;
}

/* 工厂背景图（低透明度纹理） */
.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../images/hero/factory.webp') center/cover;
  opacity: 0.06;
}

.page-banner .container {
  position: relative;
  z-index: 1;
}

.page-banner h1 {
  margin-bottom: 0.75rem;
}

.page-banner p {
  font-size: 1.125rem;
  opacity: 0.85;
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================================
   加载/空状态 (LOADING / EMPTY STATE)
   ============================================================ */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--color-text-muted);
}

.empty-state svg {
  width: 64px;
  height: 64px;
  margin-bottom: 1rem;
  opacity: 0.3;
}