/**
 * WuyuCMS 蓝色风格主题覆盖
 * 主色：深海蓝 / 天蓝渐变
 */
:root {
  --blue-primary: #0d47a1;
  --blue-primary-light: #1565c0;
  --blue-accent: #42a5f5;
  --blue-bg-soft: #e3f2fd;
  --blue-footer: #0a1929;
  --blue-gradient: linear-gradient(135deg, #0d47a1 0%, #1565c0 45%, #42a5f5 100%);
  --blue-industrial: #1a237e;
  --blue-heat: #e65100;
  --blue-heat-light: #ff9800;
}

body {
  background-color: #f5f9fc;
  color: #1a237e;
}

/* 顶部导航区：蓝色半透明条 */
.header .nav {
  background: rgba(13, 71, 161, 0.88);
  backdrop-filter: blur(8px);
  border-radius: 0 0 12px 12px;
  box-shadow: 0 4px 24px rgba(13, 71, 161, 0.25);
}

.header .nav_menu li a:hover {
  color: #bbdefb;
}

/* 轮播主按钮 */
.layui-btn.more {
  border-color: rgba(255, 255, 255, 0.95);
  background: rgba(13, 71, 161, 0.35);
}
.layui-btn.more:hover {
  background: rgba(66, 165, 245, 0.55);
  border-color: #fff;
}

/* 品牌区标题描边改为蓝色系 */
.brand_center_right_title h2 {
  -webkit-text-stroke: 1px rgba(13, 71, 161, 0.15);
  color: rgba(13, 71, 161, 0.06);
}
.brand_center_right_title h3 {
  color: #0d47a1;
  border-bottom: 2px solid #42a5f5;
  display: inline-block;
  padding-bottom: 8px;
}

.brand_center_right_button .brand_center_right_button_in {
  background: var(--blue-gradient);
  border-radius: 28px;
  box-shadow: 0 8px 24px rgba(13, 71, 161, 0.35);
}
.brand_center_right_button .brand_center_right_button_in span {
  color: #fff;
}

/* 产品区标题 */
.products_title h2 {
  color: rgba(13, 71, 161, 0.12);
}
.products_title h3 {
  color: #0d47a1;
}
.products_title p {
  color: #546e7a;
}

/* 页脚：深蓝底 */
.footer {
  background: var(--blue-footer);
  background-image: linear-gradient(180deg, #0d47a1 0%, #0a1929 55%);
}
.footer .footer_top .footer_center h4 {
  color: #90caf9;
}
.bottom_left,
.bottom_right {
  color: rgba(255, 255, 255, 0.65) !important;
}

/* 新闻列表等子页 banner 条 */
.banner .banner_in_title h3 {
  color: #0d47a1;
}

.news .tab-item.news_active {
  background: var(--blue-gradient);
  color: #fff;
}

/* ========== 汽配 / 工业首页（仿易优类演示结构） ========== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.blue-topbar {
  background: #0d1117;
  color: rgba(255, 255, 255, 0.82);
  font-size: 13px;
  line-height: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.blue-topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.blue-topbar-contact em {
  font-style: normal;
  color: var(--blue-heat-light);
}

/* 首屏轮播：替代原 layui 全屏 fixed */
.blue-hero {
  position: relative;
  width: 100%;
}
.blue-hero-swiper {
  width: 100%;
  height: min(72vh, 560px);
  min-height: 380px;
}
.blue-hero-swiper .swiper-slide {
  position: relative;
  overflow: hidden;
}
.blue-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.02);
}
.blue-hero-bg--fallback {
  background-image: url("../img/banner1.jpg");
}
.blue-hero-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(10, 25, 41, 0.88) 0%,
    rgba(13, 71, 161, 0.45) 45%,
    rgba(26, 35, 126, 0.35) 100%
  );
}
.blue-hero-inner {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  align-items: center;
  padding-bottom: 48px;
  box-sizing: border-box;
}
.blue-hero-text {
  max-width: 560px;
  color: #fff;
}
.blue-hero-kicker {
  letter-spacing: 0.2em;
  font-size: 12px;
  color: var(--blue-heat-light);
  margin-bottom: 12px;
}
.blue-hero-text h2 {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
}
.blue-hero-desc {
  font-size: 15px;
  line-height: 1.7;
  opacity: 0.92;
  margin-bottom: 28px;
}
.blue-hero-btn {
  display: inline-block;
  padding: 12px 32px;
  background: linear-gradient(135deg, var(--blue-heat) 0%, var(--blue-heat-light) 100%);
  color: #fff !important;
  border-radius: 4px;
  font-size: 15px;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(230, 81, 0, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}
.blue-hero-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(230, 81, 0, 0.45);
}
.blue-hero-btn--outline {
  background: transparent;
  border: 2px solid var(--blue-primary-light);
  color: var(--blue-primary) !important;
  box-shadow: none;
}
.blue-hero-btn--outline:hover {
  background: rgba(13, 71, 161, 0.06);
}
.blue-hero-next,
.blue-hero-prev {
  color: #fff !important;
}
.blue-hero-pagination .swiper-pagination-bullet {
  background: #fff;
  opacity: 0.45;
}
.blue-hero-pagination .swiper-pagination-bullet-active {
  opacity: 1;
  background: var(--blue-heat-light);
}

.blue-main {
  padding-top: 48px;
  padding-bottom: 32px;
}

.blue-section {
  padding: 48px 0;
}
.blue-sec-head {
  text-align: center;
  margin-bottom: 40px;
}
.blue-sec-title-en {
  font-size: 13px;
  letter-spacing: 0.25em;
  color: rgba(13, 71, 161, 0.35);
  margin-bottom: 8px;
}
.blue-sec-title-zh {
  font-size: 28px;
  color: var(--blue-industrial);
  margin-bottom: 12px;
}
.blue-sec-desc {
  color: #546e7a;
  max-width: 640px;
  margin: 0 auto 20px;
  line-height: 1.7;
}
.blue-sec-more {
  display: inline-block;
  color: var(--blue-primary);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--blue-accent);
  padding-bottom: 2px;
}
.blue-sec-more:hover {
  color: var(--blue-heat);
  border-color: var(--blue-heat-light);
}

.blue-cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.blue-cat-card {
  display: block;
  background: #fff;
  border-radius: 8px;
  padding: 24px 20px;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 8px 28px rgba(13, 71, 161, 0.08);
  border: 1px solid rgba(13, 71, 161, 0.08);
  transition: box-shadow 0.2s, transform 0.2s;
}
.blue-cat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(13, 71, 161, 0.14);
}
.blue-cat-icon {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.blue-cat-icon img {
  max-height: 64px;
  max-width: 100%;
  object-fit: contain;
}
.blue-cat-placeholder {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--blue-bg-soft), #fff);
  border: 2px dashed var(--blue-accent);
}
.blue-cat-card h4 {
  font-size: 17px;
  color: var(--blue-industrial);
  margin-bottom: 8px;
}
.blue-cat-card p {
  font-size: 13px;
  color: #78909c;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.blue-cat-empty {
  text-align: center;
  color: #90a4ae;
  font-size: 14px;
  margin-top: 8px;
}

.blue-section--about {
  background: linear-gradient(180deg, #fff 0%, var(--blue-bg-soft) 100%);
}
.blue-about-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
@media (max-width: 900px) {
  .blue-about-row {
    grid-template-columns: 1fr;
  }
}
.blue-about-media img,
.blue-about-media-fallback {
  width: 100%;
  border-radius: 8px;
  min-height: 280px;
  object-fit: cover;
}
.blue-about-media-fallback {
  background: linear-gradient(135deg, #1565c0 0%, #42a5f5 100%);
}
.blue-about-text .blue-sec-title-en,
.blue-about-text .blue-sec-title-zh {
  text-align: left;
}
.blue-about-lead {
  color: #455a64;
  line-height: 1.85;
  margin-bottom: 24px;
}

.blue-products-block {
  margin-top: 24px;
}

/* 页脚多列导航（标签生成） */
.blue-footer-nav-cols {
  width: auto !important;
  max-width: 55%;
  flex: 1;
  flex-wrap: wrap;
  gap: 24px 40px;
}
.blue-footer-nav-cols ul {
  min-width: 120px;
}
.blue-footer-nav-cols a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
}
.blue-footer-nav-cols a:hover {
  color: var(--blue-heat-light);
}
.blue-footer-nav-cols h4 {
  margin-bottom: 8px;
}
.blue-footer-nav-cols h4 a {
  color: #90caf9;
}
.blue-footer-brand .blue-footer-sitename {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 600;
  margin-bottom: 12px;
}
.blue-footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.blue-footer-links a {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  margin-right: 14px;
  font-size: 13px;
}
.blue-footer-links a:hover {
  color: #fff;
}
.blue-footer-qr img {
  max-width: 120px;
  height: auto;
}