/* ============================================================
   bcxqgeo 景观照明专属样式
   深蓝夜空 + 暖金光效，契合景观照明行业视觉
   ============================================================ */

:root {
  --bcxq-primary: #0f172a;
  --bcxq-primary-light: #1e293b;
  --bcxq-accent: #f59e0b;
  --bcxq-accent-dark: #d97706;
  --bcxq-accent-glow: rgba(245, 158, 11, 0.15);
  --bcxq-accent-soft: #fef3c7;
  --bcxq-text: #1e293b;
  --bcxq-text-light: #64748b;
  --bcxq-bg: #f8fafc;
  --bcxq-bg-card: #ffffff;
  --bcxq-border: #e2e8f0;
  --bcxq-radius: 8px;
  --bcxq-shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --bcxq-shadow-lg: 0 6px 16px rgba(0,0,0,.1);
  --bcxq-max-width: 1200px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.75;
  color: var(--bcxq-text);
  background: var(--bcxq-bg);
}

a {
  color: var(--bcxq-accent-dark);
  text-decoration: none;
  transition: color .2s;
}

a:hover {
  color: var(--bcxq-accent);
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  max-width: var(--bcxq-max-width);
  margin: 0 auto;
  padding: 0 16px;
}

/* ============================================================
   顶部导航
   ============================================================ */
.b2b-shop-header {
  background: var(--bcxq-primary);
  box-shadow: 0 2px 12px rgba(0,0,0,.2);
  position: sticky;
  top: 0;
  z-index: 100;
}

.b2b-shop-header-inner {
  max-width: var(--bcxq-max-width);
  margin: 0 auto;
  padding: 0 16px;
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.b2b-shop-logo {
  font-size: 19px;
  font-weight: 700;
  color: var(--bcxq-accent);
  white-space: nowrap;
  letter-spacing: 1px;
}

.b2b-shop-logo:hover {
  text-decoration: none;
  color: #fbbf24;
}

.b2b-shop-nav {
  display: flex;
  gap: 2px;
  align-items: center;
  flex-wrap: wrap;
}

.b2b-shop-nav a {
  padding: 6px 14px;
  border-radius: 4px;
  color: #cbd5e1;
  font-size: 14px;
  font-weight: 500;
  transition: all .2s;
}

.b2b-shop-nav a:hover {
  color: var(--bcxq-accent);
  background: rgba(255,255,255,.06);
  text-decoration: none;
}

.b2b-shop-tel a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bcxq-accent);
  color: var(--bcxq-primary);
  padding: 7px 18px;
  border-radius: 5px;
  font-weight: 600;
  font-size: 14px;
}

.b2b-shop-tel a:hover {
  background: var(--bcxq-accent-dark);
  text-decoration: none;
  color: #fff;
}

/* ============================================================
   Banner
   ============================================================ */
.b2b-shop-banner {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
  color: #fff;
  padding: 56px 0 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.b2b-shop-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 50% 80%, rgba(245,158,11,.08) 0%, transparent 70%);
  pointer-events: none;
}

.b2b-shop-banner > * {
  position: relative;
  z-index: 1;
}

.b2b-shop-banner h1 {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 12px;
  text-shadow: 0 2px 8px rgba(245,158,11,.2);
  max-width: var(--bcxq-max-width);
  margin-left: auto;
  margin-right: auto;
  padding: 0 16px;
}

.b2b-shop-banner p {
  font-size: 15px;
  opacity: .85;
  margin-bottom: 8px;
  max-width: var(--bcxq-max-width);
  margin-left: auto;
  margin-right: auto;
  padding: 0 16px;
}

.b2b-shop-banner .banner-area {
  font-size: 14px;
  opacity: .7;
  margin-bottom: 20px;
}

.b2b-banner-cta {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  background: var(--bcxq-accent);
  color: var(--bcxq-primary);
  padding: 14px 36px;
  border-radius: 8px;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(245,158,11,.35);
  transition: all .3s;
}

.b2b-banner-cta:hover {
  background: var(--bcxq-accent-dark);
  text-decoration: none;
  color: #fff;
  box-shadow: 0 6px 28px rgba(245,158,11,.45);
  transform: translateY(-2px);
}

.b2b-banner-cta .cta-phone {
  font-size: 22px;
  letter-spacing: 1px;
  line-height: 1.3;
}

.b2b-banner-cta .cta-text {
  font-size: 13px;
  font-weight: 500;
  opacity: .9;
  line-height: 1.4;
}

/* ============================================================
   通用板块
   ============================================================ */
.b2b-shop-section {
  margin-bottom: 0;
  padding: 48px 0;
}

.b2b-shop-section:nth-child(even) {
  background: var(--bcxq-bg-card);
}

.b2b-shop-section-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
  padding-left: 14px;
  border-left: 4px solid var(--bcxq-accent);
  color: var(--bcxq-text);
  line-height: 1.4;
}

.b2b-shop-section-en {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: var(--bcxq-text-light);
  margin-top: 4px;
  letter-spacing: .5px;
}

.b2b-shop-section-desc {
  color: var(--bcxq-text-light);
  font-size: 15px;
  margin-bottom: 28px;
  padding-left: 14px;
  line-height: 1.7;
}

/* ============================================================
   关于我们
   ============================================================ */
.b2b-about-wrap {
  display: flex;
  gap: 40px;
  align-items: flex-start;
}

.b2b-about-wrap > div:first-child {
  flex: 1;
  min-width: 0;
}

.b2b-about-text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--bcxq-text);
  margin-bottom: 24px;
}

.b2b-about-stats {
  display: flex;
  gap: 32px;
  margin-bottom: 24px;
}

.b2b-about-stats > div {
  text-align: center;
  flex: 1;
  padding: 16px 8px;
  background: var(--bcxq-bg);
  border-radius: var(--bcxq-radius);
  border: 1px solid var(--bcxq-border);
}

.b2b-about-stat-num {
  font-size: 30px;
  font-weight: 800;
  color: var(--bcxq-accent-dark);
  line-height: 1.2;
}

.b2b-about-stat-label {
  font-size: 13px;
  color: var(--bcxq-text-light);
  margin-top: 6px;
}

.b2b-about-image {
  flex: 0 0 340px;
  border-radius: var(--bcxq-radius);
  overflow: hidden;
  box-shadow: var(--bcxq-shadow-lg);
}

.b2b-about-image img {
  width: 100%;
  display: block;
}

.b2b-about-contact {
  margin-top: 20px;
  padding: 16px 20px;
  background: var(--bcxq-accent-soft);
  border-radius: var(--bcxq-radius);
  border: 1px solid rgba(245,158,11,.2);
}

.b2b-about-contact p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--bcxq-text);
}

.b2b-about-contact strong {
  color: var(--bcxq-accent-dark);
  font-weight: 600;
}

/* ============================================================
   产品 / 解决方案网格
   ============================================================ */
.b2b-product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.b2b-product-card {
  background: var(--bcxq-bg-card);
  border: 1px solid var(--bcxq-border);
  border-radius: var(--bcxq-radius);
  overflow: hidden;
  box-shadow: var(--bcxq-shadow);
  transition: box-shadow .2s, transform .2s;
}

.b2b-product-card:hover {
  box-shadow: var(--bcxq-shadow-lg);
  transform: translateY(-2px);
}

.b2b-product-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  background: var(--bcxq-bg);
  display: block;
}

.b2b-product-card-body {
  padding: 12px 14px;
}

.b2b-product-card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--bcxq-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============================================================
   工程案例
   ============================================================ */
.b2b-case-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.b2b-case-item {
  background: var(--bcxq-bg-card);
  border: 1px solid var(--bcxq-border);
  border-radius: var(--bcxq-radius);
  padding: 18px 22px;
  box-shadow: var(--bcxq-shadow);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: box-shadow .2s;
}

.b2b-case-item:hover {
  box-shadow: var(--bcxq-shadow-lg);
}

.b2b-case-year {
  flex: 0 0 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--bcxq-accent), var(--bcxq-accent-dark));
  border-radius: var(--bcxq-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
}

.b2b-case-content {
  flex: 1;
  min-width: 0;
}

.b2b-case-content h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--bcxq-text);
  margin-bottom: 4px;
}

.b2b-case-content p {
  font-size: 13px;
  color: var(--bcxq-text-light);
  line-height: 1.6;
}

/* ============================================================
   核心优势
   ============================================================ */
.b2b-advantage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.b2b-advantage-card {
  background: var(--bcxq-bg-card);
  border: 1px solid var(--bcxq-border);
  border-radius: var(--bcxq-radius);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--bcxq-shadow);
  transition: box-shadow .2s, transform .2s;
}

.b2b-advantage-card:hover {
  box-shadow: var(--bcxq-shadow-lg);
  transform: translateY(-2px);
}

.b2b-advantage-icon {
  font-size: 36px;
  margin-bottom: 14px;
  line-height: 1;
}

.b2b-advantage-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--bcxq-text);
  margin-bottom: 8px;
}

.b2b-advantage-desc {
  font-size: 13px;
  color: var(--bcxq-text-light);
  line-height: 1.7;
}

/* ============================================================
   服务流程
   ============================================================ */
.b2b-process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.b2b-process-card {
  background: var(--bcxq-bg-card);
  border: 1px solid var(--bcxq-border);
  border-radius: var(--bcxq-radius);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--bcxq-shadow);
  position: relative;
}

.b2b-process-icon {
  font-size: 36px;
  margin-bottom: 14px;
  line-height: 1;
}

.b2b-process-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--bcxq-text);
  margin-bottom: 8px;
}

.b2b-process-desc {
  font-size: 13px;
  color: var(--bcxq-text-light);
  line-height: 1.7;
}

/* ============================================================
   联系我们
   ============================================================ */
.b2b-contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.b2b-contact-card {
  background: var(--bcxq-bg-card);
  border: 1px solid var(--bcxq-border);
  border-radius: var(--bcxq-radius);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--bcxq-shadow);
}

.b2b-contact-icon {
  font-size: 36px;
  margin-bottom: 12px;
  line-height: 1;
}

.b2b-contact-label {
  font-size: 13px;
  color: var(--bcxq-text-light);
  margin-bottom: 8px;
}

.b2b-contact-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--bcxq-text);
}

.b2b-contact-value a {
  color: var(--bcxq-accent-dark);
}

.b2b-contact-value a:hover {
  color: var(--bcxq-accent);
}

/* ============================================================
   合作伙伴与友情链接
   ============================================================ */
.b2b-recommend-wrap {
  max-width: var(--bcxq-max-width);
  margin: 0 auto;
  padding: 40px 16px;
}

.b2b-recommend-group {
  margin-bottom: 24px;
}

.b2b-recommend-group:last-child {
  margin-bottom: 0;
}

.b2b-recommend-group-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--bcxq-text);
  margin-bottom: 14px;
  padding-left: 12px;
  border-left: 3px solid var(--bcxq-accent);
}

.b2b-recommend-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.b2b-recommend-links a {
  font-size: 13px;
  color: var(--bcxq-text-light);
  padding: 4px 12px;
  border-radius: 4px;
  background: var(--bcxq-bg);
  border: 1px solid var(--bcxq-border);
  transition: all .2s;
}

.b2b-recommend-links a:hover {
  color: var(--bcxq-accent-dark);
  background: var(--bcxq-accent-soft);
  border-color: var(--bcxq-accent);
  text-decoration: none;
}

/* ============================================================
   底部
   ============================================================ */
.b2b-shop-footer {
  background: var(--bcxq-primary);
  color: #94a3b8;
  padding: 36px 0 20px;
  margin-top: 0;
}

.b2b-shop-footer p {
  font-size: 13px;
  line-height: 1.9;
  margin-bottom: 4px;
  text-align: center;
}

.b2b-shop-footer a {
  color: #93c5fd;
}

.b2b-shop-footer a:hover {
  color: var(--bcxq-accent);
}

/* ============================================================
   移动端悬浮电话按钮
   ============================================================ */
.b2b-mobile-call-float {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 99;
  padding: 8px 16px;
  background: linear-gradient(135deg, var(--bcxq-accent), var(--bcxq-accent-dark));
  box-shadow: 0 -2px 12px rgba(245,158,11,.3);
}

.b2b-mobile-call-btn {
  display: block;
  text-align: center;
  color: var(--bcxq-primary);
  font-size: 16px;
  font-weight: 700;
  padding: 10px;
}

.b2b-mobile-call-btn:hover {
  text-decoration: none;
  color: #fff;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 900px) {
  .b2b-advantage-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .b2b-process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .b2b-contact-grid {
    grid-template-columns: 1fr;
  }
  .b2b-about-wrap {
    flex-direction: column;
  }
  .b2b-about-image {
    flex: none;
    width: 100%;
  }
}

@media (max-width: 768px) {
  .b2b-shop-header-inner {
    height: auto;
    flex-direction: column;
    padding: 10px 16px;
    gap: 8px;
  }
  .b2b-shop-nav {
    justify-content: center;
  }
  .b2b-shop-nav a {
    padding: 5px 10px;
    font-size: 13px;
  }
  .b2b-shop-banner {
    padding: 32px 0 28px;
  }
  .b2b-shop-banner h1 {
    font-size: 22px;
  }
  .b2b-banner-cta {
    padding: 12px 28px;
  }
  .b2b-banner-cta .cta-phone {
    font-size: 18px;
  }
  .b2b-shop-section {
    padding: 32px 0;
  }
  .b2b-shop-section-title {
    font-size: 19px;
  }
  .b2b-about-stats {
    gap: 12px;
  }
  .b2b-about-stat-num {
    font-size: 24px;
  }
  .b2b-case-item {
    flex-direction: column;
    align-items: flex-start;
  }
  .b2b-case-year {
    flex: 0 0 auto;
    padding: 6px 16px;
    height: auto;
  }
  .b2b-product-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
  }
}

@media (max-width: 480px) {
  .b2b-advantage-grid {
    grid-template-columns: 1fr;
  }
  .b2b-process-grid {
    grid-template-columns: 1fr;
  }
  .b2b-product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .b2b-shop-banner h1 {
    font-size: 20px;
  }
  .b2b-about-stats {
    flex-direction: column;
    gap: 10px;
  }
}