/* =============================================
   山东银宏辐射防护有限公司 - 主样式表
   色系：蓝色科技感 + 白色干净 + 灰色稳重
   ============================================= */

/* ---------- 基础重置 ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: #333; background: #fff; line-height: 1.7; -webkit-font-smoothing: antialiased;
}
a { color: #1565c0; text-decoration: none; transition: color .2s; }
a:hover { color: #0d47a1; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
.fl { float: left; }
.fr { float: right; }
.clearfix::after { content: ""; display: block; clear: both; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ---------- 顶部信息栏 ---------- */
.top-bar {
  background: #263238; color: #90a4ae; font-size: 13px; padding: 8px 0;
  line-height: 1;
}
.top-links a { color: #b0bec5; font-size: 13px; }
.top-links a:hover { color: #fff; }
.top-links span { margin: 0 8px; color: #546e7a; }

/* ---------- 头部 ---------- */
.header {
  background: #fff; padding: 18px 0; border-bottom: 3px solid #1565c0;
  box-shadow: 0 2px 8px rgba(0,0,0,.06);
}
.logo h1 { margin: 0; line-height: 1; }
.logo a { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo-img { height: 60px; width: auto; object-fit: contain; }
.logo-text { font-size: 22px; color: #0d47a1; font-weight: 700; letter-spacing: 2px; white-space: nowrap; }
.logo-icon { display: none; }
.header-phone { text-align: right; }
.phone-label { font-size: 13px; color: #78909c; margin-bottom: 4px; }
.phone-number { font-size: 28px; font-weight: 700; color: #0d47a1; letter-spacing: 1px; line-height: 1.2; }
.phone-sub { font-size: 12px; color: #90a4ae; margin-top: 4px; }
.mobile-menu-btn { display: none; background: none; border: 2px solid #1565c0; color: #1565c0;
  font-size: 24px; padding: 6px 14px; border-radius: 4px; cursor: pointer; }

/* ---------- 导航栏 ---------- */
.main-nav {
  background: linear-gradient(135deg, #0d47a1 0%, #1565c0 50%, #1976d2 100%);
  position: sticky; top: 0; z-index: 1000;
  box-shadow: 0 2px 12px rgba(0,0,0,.15);
}
.nav-list { display: flex; }
.nav-list > li { position: relative; }
.nav-list > li > a {
  display: block; padding: 14px 22px; color: #fff; font-size: 15px; font-weight: 500;
  letter-spacing: .5px; transition: background .2s;
}
.nav-list > li > a:hover,
.nav-list > li.active > a {
  background: rgba(255,255,255,.15);
}
.nav-list > li.has-dropdown > a::after {
  content: " ▾"; font-size: 11px; opacity: .7;
}

/* 下拉菜单 */
.dropdown {
  display: none; position: absolute; top: 100%; left: 0; min-width: 200px;
  background: #fff; border-radius: 0 0 6px 6px;
  box-shadow: 0 6px 20px rgba(0,0,0,.12); z-index: 100;
  border-top: 3px solid #1976d2;
}
.nav-list > li.has-dropdown:hover .dropdown { display: block; }
.dropdown li a {
  display: block; padding: 10px 20px; color: #333; font-size: 14px;
  border-bottom: 1px solid #f5f5f5; transition: all .15s;
}
.dropdown li:last-child a { border-bottom: none; }
.dropdown li a:hover { background: #e3f2fd; color: #0d47a1; padding-left: 26px; }

/* ---------- Banner ---------- */
.banner { position: relative; overflow: hidden; }
.banner-item {
  display: none; min-height: 420px; color: #fff;
  align-items: center; justify-content: center;
}
.banner-item.active { display: flex; }
.banner-content { text-align: center; padding: 60px 20px; max-width: 800px; margin: 0 auto; }
.banner-content h2 { font-size: 38px; margin-bottom: 16px; font-weight: 700; letter-spacing: 1px; }
.banner-content h2 strong { color: #ffd54f; }
.banner-content p { font-size: 18px; opacity: .9; margin-bottom: 8px; }
.banner-sub { font-size: 15px !important; opacity: .75 !important; }
.banner-dots {
  position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 10px;
}
.banner-dots .dot {
  width: 12px; height: 12px; border-radius: 50%; background: rgba(255,255,255,.4);
  cursor: pointer; transition: all .3s;
}
.banner-dots .dot.active { background: #ffd54f; transform: scale(1.2); }

/* ---------- 按钮 ---------- */
.btn-primary {
  display: inline-block; background: linear-gradient(135deg, #f57c00, #ff9800);
  color: #fff !important; padding: 12px 32px; border-radius: 4px;
  font-size: 15px; font-weight: 600; letter-spacing: .5px;
  transition: all .3s; box-shadow: 0 4px 12px rgba(245,124,0,.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(245,124,0,.4); color: #fff !important; }
.btn-secondary {
  display: inline-block; background: #fff; color: #1565c0 !important;
  padding: 12px 32px; border-radius: 4px; font-size: 15px; font-weight: 600;
  border: 2px solid #1565c0; transition: all .3s;
}
.btn-secondary:hover { background: #1565c0; color: #fff !important; }
.btn-outline {
  display: inline-block; background: transparent; color: #fff !important;
  padding: 12px 32px; border-radius: 4px; font-size: 15px; font-weight: 600;
  border: 2px solid #fff; transition: all .3s;
}
.btn-outline:hover { background: #fff; color: #0d47a1 !important; }
.btn-lg { padding: 16px 40px; font-size: 17px; }

/* ---------- 通用Section ---------- */
.section { padding: 70px 0; }
.section:nth-child(even) { background: #f8fafc; }
.section-header { text-align: center; margin-bottom: 50px; }
.section-header h2 {
  font-size: 32px; color: #0d47a1; margin-bottom: 12px;
  position: relative; display: inline-block;
}
.section-header h2::after {
  content: ""; display: block; width: 60px; height: 4px; background: #f57c00;
  margin: 12px auto 0; border-radius: 2px;
}
.section-header p { color: #78909c; font-size: 16px; }
.section-footer { text-align: center; margin-top: 40px; }

/* ---------- 核心优势 ---------- */
.advantages { background: #fff; }
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.adv-item {
  text-align: center; padding: 36px 24px; border-radius: 8px;
  background: #fff; border: 1px solid #e8edf2; transition: all .3s;
}
.adv-item:hover { transform: translateY(-6px); box-shadow: 0 12px 30px rgba(0,0,0,.08); border-color: #90caf9; }
.adv-icon { font-size: 48px; margin-bottom: 16px; }
.adv-item h3 { font-size: 18px; color: #0d47a1; margin-bottom: 10px; }
.adv-item p { font-size: 14px; color: #607d8b; line-height: 1.7; }

/* ---------- 产品中心 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.product-card {
  background: #fff; border-radius: 8px; overflow: hidden;
  border: 1px solid #e8edf2; transition: all .3s;
}
.product-card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(0,0,0,.08); }
.product-img {
  position: relative; height: 200px; display: flex; align-items: center; justify-content: center; overflow: hidden; background: #f5f5f5;
}
.product-img img {
  width: 100%; height: 100%; object-fit: cover; transition: transform .3s;
}
.product-card:hover .product-img img { transform: scale(1.05); }
.product-img-placeholder { font-size: 56px; }
.product-badge {
  position: absolute; top: 12px; left: 12px; background: #f57c00; color: #fff;
  padding: 3px 12px; border-radius: 3px; font-size: 12px; font-weight: 600;
}
.product-info { padding: 20px; }
.product-info h3 { font-size: 18px; color: #0d47a1; margin-bottom: 8px; }
.product-info > p { font-size: 14px; color: #607d8b; line-height: 1.7; margin-bottom: 12px; min-height: 66px; }
.product-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.product-tags span {
  background: #e3f2fd; color: #1565c0; padding: 3px 10px; border-radius: 3px; font-size: 12px;
}
.btn-more {
  display: inline-block; color: #f57c00 !important; font-size: 14px; font-weight: 600;
  transition: all .2s;
}
.btn-more:hover { color: #e65100 !important; letter-spacing: 1px; }

/* ---------- 应用场景 ---------- */
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scenario-card {
  text-align: center; padding: 30px 20px; border-radius: 8px;
  background: #fff; border: 1px solid #e8edf2; transition: all .3s;
}
.scenario-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,.06); border-color: #90caf9; }
.scenario-icon { font-size: 42px; margin-bottom: 12px; }
.scenario-card h3 { font-size: 17px; color: #0d47a1; margin-bottom: 8px; }
.scenario-card p { font-size: 13px; color: #607d8b; line-height: 1.7; }

/* ---------- 工程案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.case-item {
  border-radius: 8px; overflow: hidden; background: #fff;
  border: 1px solid #e8edf2; transition: all .3s;
}
.case-item:hover { box-shadow: 0 8px 24px rgba(0,0,0,.06); }
.case-img { height: 180px; display: flex; align-items: center; justify-content: center; overflow: hidden; background: #f5f5f5; }
.case-img img { width: 100%; height: 100%; object-fit: cover; }
.case-img-placeholder { color: #546e7a; font-size: 18px; font-weight: 600; }
.case-info { padding: 18px; }
.case-info h3 { font-size: 16px; color: #0d47a1; margin-bottom: 8px; }
.case-info p { font-size: 13px; color: #607d8b; line-height: 1.7; margin-bottom: 10px; }
.case-tag {
  display: inline-block; background: #e3f2fd; color: #1565c0;
  padding: 2px 10px; border-radius: 3px; font-size: 12px;
}

/* ---------- FAQ ---------- */
.faq-list { max-width: 850px; margin: 0 auto; }
.faq-item {
  border: 1px solid #e0e0e0; border-radius: 6px; margin-bottom: 12px;
  overflow: hidden; background: #fff; transition: all .2s;
}
.faq-item:hover { border-color: #90caf9; }
.faq-question {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 24px; cursor: pointer; user-select: none;
}
.faq-question h3 { font-size: 16px; color: #0d47a1; font-weight: 600; }
.faq-toggle {
  font-size: 24px; color: #1565c0; font-weight: 300; transition: transform .3s; line-height: 1;
}
.faq-item.open .faq-toggle { transform: rotate(45deg); }
.faq-answer {
  display: none; padding: 0 24px 18px; font-size: 14px; color: #546e7a; line-height: 1.8;
  border-top: 1px solid #f5f5f5; padding-top: 16px;
}
.faq-item.open .faq-answer { display: block; }
.faq-answer a { color: #f57c00; font-weight: 600; }

/* ---------- 新闻 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.news-card {
  padding: 24px; border-radius: 8px; background: #fff;
  border: 1px solid #e8edf2; transition: all .3s;
}
.news-card:hover { box-shadow: 0 6px 18px rgba(0,0,0,.06); }
.news-date { display: inline-block; background: #e3f2fd; color: #1565c0; padding: 3px 12px;
  border-radius: 3px; font-size: 12px; margin-bottom: 10px; }
.news-card h3 { font-size: 17px; margin-bottom: 8px; }
.news-card h3 a { color: #333; }
.news-card h3 a:hover { color: #0d47a1; }
.news-card p { font-size: 14px; color: #78909c; line-height: 1.7; }

/* ---------- CTA ---------- */
.cta-section {
  background: linear-gradient(135deg, #0d47a1, #1565c0);
  color: #fff; padding: 70px 0; text-align: center;
}
.cta-content { max-width: 700px; margin: 0 auto; }
.cta-section h2 { font-size: 30px; margin-bottom: 14px; }
.cta-section > .container > .cta-content > p { font-size: 17px; opacity: .9; margin-bottom: 28px; }
.cta-buttons { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; margin-bottom: 20px; }
.cta-note { font-size: 13px; opacity: .7; }

/* ---------- 面包屑 ---------- */
.breadcrumb {
  background: #f5f5f5; padding: 12px 0; font-size: 14px; color: #78909c;
  border-bottom: 1px solid #e0e0e0;
}
.breadcrumb a { color: #78909c; }
.breadcrumb a:hover { color: #0d47a1; }
.breadcrumb strong { color: #0d47a1; }

/* ---------- 产品详情页 ---------- */
.product-detail-page { padding: 30px 0 60px; }
.sidebar { width: 260px; }
.main-content { width: calc(100% - 290px); }

.sidebar-section {
  background: #fff; border: 1px solid #e8edf2; border-radius: 6px;
  padding: 20px; margin-bottom: 24px;
}
.sidebar-section h3 {
  font-size: 18px; color: #0d47a1; padding-bottom: 14px;
  border-bottom: 2px solid #1565c0; margin-bottom: 12px;
}
.category-list li a {
  display: block; padding: 10px 14px; color: #333; font-size: 14px;
  border-bottom: 1px dashed #eee; transition: all .15s; border-radius: 4px;
}
.category-list li a:hover,
.category-list li.active a { background: #e3f2fd; color: #0d47a1; font-weight: 600; }

.sidebar-contact {
  background: linear-gradient(135deg, #0d47a1, #1565c0); color: #fff;
  border-radius: 6px; padding: 24px; text-align: center; margin-bottom: 24px; border: none;
}
.sidebar-contact h3 { color: #fff; border-bottom-color: rgba(255,255,255,.3); }
.sidebar-phone { font-size: 26px; font-weight: 700; margin: 12px 0 8px; }
.sidebar-contact p { font-size: 13px; opacity: .8; margin-bottom: 14px; }
.sidebar-contact .btn-primary { background: #f57c00; box-shadow: none; }

.sidebar-news h3 { font-size: 16px; }
.sidebar-news ul li { border-bottom: 1px dashed #eee; }
.sidebar-news ul li a {
  display: block; padding: 10px 0; font-size: 13px; color: #555;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.sidebar-news ul li a:hover { color: #0d47a1; }

/* 产品详情 */
.product-detail h2 { font-size: 28px; color: #0d47a1; margin-bottom: 24px; padding-bottom: 14px; border-bottom: 2px solid #1565c0; }
.product-gallery { margin-bottom: 30px; border-radius: 8px; overflow: hidden; }
.gallery-main { width: 100%; height: 350px; overflow: hidden; background: #f5f5f5; }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: flex; gap: 8px; margin-top: 8px; }
.gallery-thumbs img { width: 120px; height: 80px; object-fit: cover; border-radius: 4px; cursor: pointer; border: 2px solid transparent; transition: border-color .2s; }
.gallery-thumbs img:hover { border-color: #1565c0; }
.product-intro h3,
.product-types h3,
.product-params h3,
.product-scenarios h3,
.product-guide h3 { font-size: 20px; color: #0d47a1; margin-bottom: 16px; margin-top: 30px; padding-left: 14px; border-left: 4px solid #f57c00; }
.product-intro p { font-size: 15px; color: #444; line-height: 1.9; margin-bottom: 12px; text-indent: 2em; }

.type-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.type-item {
  padding: 20px; border: 1px solid #e8edf2; border-radius: 6px;
  transition: all .2s;
}
.type-item:hover { border-color: #90caf9; box-shadow: 0 4px 12px rgba(0,0,0,.04); }
.type-item h4 { font-size: 16px; color: #0d47a1; margin-bottom: 8px; }
.type-item p { font-size: 14px; color: #607d8b; line-height: 1.7; margin-bottom: 10px; }
.type-item span { font-size: 13px; color: #f57c00; font-weight: 600; }

.product-params { overflow-x: auto; }
.product-params table {
  width: 100%; border-collapse: collapse; font-size: 14px;
}
.product-params th, .product-params td {
  padding: 12px 16px; border: 1px solid #e0e0e0; text-align: left;
}
.product-params th { background: #0d47a1; color: #fff; font-weight: 600; white-space: nowrap; }
.product-params tr:nth-child(even) td { background: #f8fafc; }
.product-params tr:hover td { background: #e3f2fd; }

.scenario-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.scenario-tags span {
  display: inline-block; padding: 6px 16px; background: #e3f2fd; color: #1565c0;
  border-radius: 20px; font-size: 14px; transition: all .2s;
}
.scenario-tags span:hover { background: #1565c0; color: #fff; }

.guide-content h4 { font-size: 16px; color: #333; margin-top: 20px; margin-bottom: 8px; }
.guide-content p { font-size: 14px; color: #555; line-height: 1.8; margin-bottom: 8px; }
.guide-content ul { padding-left: 20px; margin-bottom: 12px; }
.guide-content ul li { font-size: 14px; color: #555; line-height: 1.8; list-style: disc; }

.product-cta {
  background: linear-gradient(135deg, #e3f2fd, #bbdefb); border-radius: 8px;
  padding: 36px; text-align: center; margin-top: 40px;
}
.product-cta h3 { font-size: 22px; color: #0d47a1; margin-bottom: 10px; border: none; padding: 0; }
.product-cta p { color: #555; margin-bottom: 20px; }
.product-cta .cta-buttons { justify-content: center; }

.related-products { margin-top: 40px; }
.related-products h3 { font-size: 20px; color: #0d47a1; margin-bottom: 20px; padding-left: 14px; border-left: 4px solid #f57c00; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.related-card {
  text-align: center; padding: 20px; border: 1px solid #e8edf2; border-radius: 6px;
  transition: all .2s;
}
.related-card:hover { box-shadow: 0 6px 18px rgba(0,0,0,.06); border-color: #90caf9; }
.related-img { height: 100px; border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 36px; margin-bottom: 12px; overflow: hidden; background: #f5f5f5; }
.related-img img { width: 100%; height: 100%; object-fit: cover; }
.related-card h4 { font-size: 16px; color: #0d47a1; margin-bottom: 6px; }
.related-card p { font-size: 13px; color: #78909c; }

/* ---------- 页脚 ---------- */
.footer { background: #1a2332; color: #90a4ae; padding: 50px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; padding-bottom: 30px; }
.footer-col h3 { color: #fff; font-size: 18px; margin-bottom: 18px; padding-bottom: 12px; border-bottom: 2px solid #f57c00; display: inline-block; }
.footer-about p { font-size: 14px; line-height: 1.8; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { color: #90a4ae; font-size: 14px; transition: all .15s; }
.footer-col ul li a:hover { color: #ffd54f; padding-left: 4px; }
.contact-list li { font-size: 14px !important; line-height: 1.9; }

/* 页脚微信二维码 */
.footer-wechat { margin-top: 12px; text-align: center; }
.footer-qr-img { width: 90px; height: 90px; border-radius: 6px; border: 2px solid rgba(255,255,255,0.15); display: block; margin: 0 auto 6px; }
.footer-wechat span { font-size: 12px; color: #90a4ae; }

/* 联系页面微信二维码卡片 */
.wechat-card .wechat-qr-img { width: 120px; height: 120px; border-radius: 8px; margin: 8px auto; display: block; border: 2px solid #e0e0e0; }

.footer-seo-links {
  border-top: 1px solid #263238; padding: 20px 0; text-align: center;
}
.footer-seo-links h4 { color: #78909c; font-size: 13px; margin-bottom: 8px; }
.footer-seo-links p { font-size: 13px; line-height: 2; }
.footer-seo-links a { color: #78909c; }
.footer-seo-links a:hover { color: #ffd54f; }

.footer-bottom {
  border-top: 1px solid #263238; padding: 16px 0; text-align: center;
  font-size: 13px; color: #546e7a;
}

/* ---------- 回到顶部 ---------- */
.back-to-top {
  display: none; position: fixed; bottom: 80px; right: 24px;
  width: 44px; height: 44px; background: #1565c0; color: #fff;
  border: none; border-radius: 50%; font-size: 20px; cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,.2); transition: all .3s; z-index: 999;
}
.back-to-top:hover { background: #0d47a1; transform: translateY(-3px); }
.back-to-top.show { display: block; }

/* ---------- 浮动联系 ---------- */
.float-contact {
  position: fixed; bottom: 24px; right: 24px; display: flex; flex-direction: column;
  gap: 10px; z-index: 998;
}
.float-phone, .float-msg {
  width: 52px; height: 52px; border-radius: 50%; display: flex;
  align-items: center; justify-content: center; font-size: 24px;
  box-shadow: 0 4px 12px rgba(0,0,0,.15); transition: all .3s;
}
.float-phone { background: #4caf50; }
.float-msg { background: #1565c0; }
.float-phone:hover { transform: scale(1.1); box-shadow: 0 6px 20px rgba(76,175,80,.3); }
.float-msg:hover { transform: scale(1.1); box-shadow: 0 6px 20px rgba(21,101,192,.3); }
.back-top-float {
  width: 52px; height: 52px; border-radius: 50%; background: #78909c; color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 24px;
  cursor: pointer; transition: all .3s; box-shadow: 0 4px 12px rgba(0,0,0,.15);
}
.back-top-float:hover { background: #1565c0; }

/* ---------- 联系我们页 ---------- */
.contact-wrapper {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contact-info-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  justify-items: center;
}

.contact-card {
  background: #fff;
  border: 1px solid #e3eaf5;
  border-radius: 10px;
  padding: 32px 24px;
  text-align: center;
  width: 100%;
  box-shadow: 0 2px 12px rgba(13,71,161,.06);
  transition: box-shadow .2s;
}
.contact-card:hover { box-shadow: 0 6px 24px rgba(13,71,161,.12); }

.contact-icon { font-size: 36px; margin-bottom: 12px; }
.contact-card h3 { font-size: 16px; color: #0d47a1; margin-bottom: 10px; font-weight: 600; }
.contact-main { font-size: 20px; font-weight: 700; color: #1a1a1a; margin-bottom: 6px; }
.contact-sub { font-size: 13px; color: #78909c; }

.work-hours {
  background: #f5f8ff;
  border-radius: 10px;
  padding: 28px 32px;
  max-width: 480px;
  margin: 0 auto;
  width: 100%;
  text-align: center;
}
.work-hours h3 { font-size: 17px; color: #0d47a1; margin-bottom: 16px; }
.hours-detail { display: flex; flex-direction: column; gap: 10px; margin-bottom: 12px; }
.hours-row {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  color: #37474f;
  border-bottom: 1px dashed #dce6f5;
  padding-bottom: 8px;
}
.hours-row:last-child { border-bottom: none; padding-bottom: 0; }
.hours-note { font-size: 12px; color: #90a4ae; margin-top: 8px; }

/* ---------- 响应式补充（大于768px） ---------- */
@media (min-width: 769px) {
  .mobile-menu-btn { display: none !important; }
}

/* ---------- 在线咨询表单 ---------- */
.contact-form-wrapper {
  max-width: 720px;
  margin: 0 auto;
  background: #fff;
  border-radius: 10px;
  padding: 36px 32px;
  box-shadow: 0 2px 16px rgba(13,71,161,.06);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: #37474f;
  margin-bottom: 8px;
}
.required { color: #e53935; }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #dce6f5;
  border-radius: 6px;
  font-size: 14px;
  color: #1a1a1a;
  background: #f8fafc;
  transition: border-color .2s, box-shadow .2s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: #1565c0;
  box-shadow: 0 0 0 3px rgba(21,101,192,.1);
  background: #fff;
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-group-full { width: 100%; }

.form-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 8px;
}

.form-note {
  margin-top: 20px;
  padding: 16px 20px;
  background: #fff8e1;
  border-radius: 6px;
  border-left: 4px solid #f57c00;
  font-size: 13px;
  color: #5d4037;
  line-height: 1.8;
}
.form-note strong { color: #e65100; }
.form-note ul { margin-top: 6px; padding-left: 18px; }

/* ---------- 服务流程 ---------- */
.flow-steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  flex-wrap: nowrap;
}

.flow-step {
  flex: 1;
  max-width: 180px;
  text-align: center;
  padding: 24px 12px 20px;
  position: relative;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(13,71,161,.06);
  transition: box-shadow .2s;
}
.flow-step:hover { box-shadow: 0 6px 24px rgba(13,71,161,.12); }

.step-number {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, #0d47a1, #1565c0);
  color: #fff;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 700;
  line-height: 28px;
}

.step-icon { font-size: 32px; margin-bottom: 10px; }
.flow-step h3 { font-size: 15px; color: #0d47a1; margin-bottom: 6px; font-weight: 600; }
.flow-step p { font-size: 13px; color: #78909c; line-height: 1.5; }

.flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #1565c0;
  padding: 0 6px;
  margin-top: 40px;
  font-weight: 700;
}

/* ---------- 关于我们页 ---------- */
.about-intro-content {
  display: flex;
  gap: 40px;
  align-items: flex-start;
  max-width: 1100px;
  margin: 0 auto;
}
.about-img { flex: 0 0 380px; }
.about-img-placeholder {
  border-radius: 12px;
  padding: 40px 20px;
  text-align: center;
  color: #fff;
}
.about-img-placeholder span { font-size: 64px; display: block; margin-bottom: 12px; }
.about-img-placeholder p { font-size: 15px; opacity: .9; }
.about-text { flex: 1; }
.about-text h3 {
  font-size: 22px; color: #0d47a1; margin-bottom: 16px;
  padding-left: 14px; border-left: 4px solid #f57c00;
}
.about-text p { font-size: 15px; color: #444; line-height: 1.9; margin-bottom: 14px; }

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 28px;
}
.stat-item {
  text-align: center;
  padding: 20px 12px;
  background: #f5f8ff;
  border-radius: 8px;
}
.stat-num {
  display: block;
  font-size: 30px;
  font-weight: 700;
  color: #f57c00;
  margin-bottom: 6px;
}
.stat-label {
  display: block;
  font-size: 13px;
  color: #607d8b;
}

.strength-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.strength-item {
  text-align: center;
  padding: 32px 20px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid #e8edf2;
  transition: all .3s;
}
.strength-item:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,.06); border-color: #90caf9; }
.strength-icon { font-size: 44px; margin-bottom: 14px; }
.strength-item h3 { font-size: 17px; color: #0d47a1; margin-bottom: 10px; }
.strength-item p { font-size: 14px; color: #607d8b; line-height: 1.7; }

.culture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.culture-item {
  text-align: center;
  padding: 36px 20px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid #e8edf2;
  transition: all .3s;
}
.culture-item:hover { box-shadow: 0 8px 24px rgba(0,0,0,.06); border-color: #90caf9; }
.culture-icon { font-size: 44px; margin-bottom: 14px; }
.culture-item h3 { font-size: 17px; color: #0d47a1; margin-bottom: 10px; }
.culture-item p { font-size: 14px; color: #607d8b; line-height: 1.8; }

.timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  padding-left: 40px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, #1565c0, #90caf9);
  border-radius: 2px;
}
.timeline-item {
  position: relative;
  margin-bottom: 32px;
  padding-left: 20px;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -33px;
  top: 8px;
  width: 14px;
  height: 14px;
  background: #1565c0;
  border: 3px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 3px #90caf9;
}
.timeline-year {
  display: inline-block;
  background: #1565c0;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 20px;
  margin-bottom: 10px;
}
.timeline-content {
  background: #fff;
  border: 1px solid #e8edf2;
  border-radius: 8px;
  padding: 20px 24px;
  box-shadow: 0 2px 8px rgba(0,0,0,.04);
}
.timeline-content h3 { font-size: 17px; color: #0d47a1; margin-bottom: 8px; }
.timeline-content p { font-size: 14px; color: #555; line-height: 1.8; }

.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.cert-item {
  text-align: center;
  transition: all .3s;
}
.cert-item:hover { transform: translateY(-4px); }
.cert-img {
  border-radius: 10px;
  padding: 30px 16px;
  text-align: center;
}
.cert-img span { font-size: 48px; display: block; margin-bottom: 8px; }
.cert-img p { font-size: 13px; color: #444; font-weight: 600; }

/* ---------- 工程案例页 ---------- */
.case-filter {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 8px 24px;
  border: 2px solid #e0e0e0;
  border-radius: 24px;
  background: #fff;
  color: #555;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all .2s;
}
.filter-btn:hover { border-color: #1565c0; color: #1565c0; }
.filter-btn.active {
  background: #1565c0;
  border-color: #1565c0;
  color: #fff;
}

.case-grid-full {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.case-card {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid #e8edf2;
  transition: all .3s;
}
.case-card:hover { transform: translateY(-4px); box-shadow: 0 10px 30px rgba(0,0,0,.08); }
.case-card .case-img {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: #f5f5f5;
}
.case-card .case-img img { width: 100%; height: 100%; object-fit: cover; }
.case-card .case-img-placeholder { font-size: 42px; color: #fff; }
.case-type-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 14px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
}
.hospital-tag { background: rgba(21,101,192,.85); }
.dental-tag { background: rgba(0,137,123,.85); }
.pet-tag { background: rgba(255,143,0,.85); }
.industrial-tag { background: rgba(69,90,100,.85); }
.case-info { padding: 20px; }
.case-info h3 { font-size: 16px; color: #0d47a1; margin-bottom: 8px; line-height: 1.5; }
.case-location { font-size: 13px; color: #90a4ae; margin-bottom: 8px; }
.case-desc { font-size: 14px; color: #555; line-height: 1.7; margin-bottom: 10px; }
.case-details {
  font-size: 13px;
  color: #78909c;
  padding-top: 10px;
  border-top: 1px dashed #e8edf2;
}

/* ---------- 新闻列表页 ---------- */
.news-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.news-item {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: #fff;
  border-radius: 8px;
  border: 1px solid #e8edf2;
  transition: all .2s;
  align-items: flex-start;
}
.news-item:hover { box-shadow: 0 4px 16px rgba(0,0,0,.06); border-color: #90caf9; }
.news-date-tag {
  flex-shrink: 0;
  display: inline-block;
  background: #e3f2fd;
  color: #1565c0;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  min-width: 110px;
  text-align: center;
}
.news-content { flex: 1; }
.news-content h3 { font-size: 17px; margin-bottom: 8px; }
.news-content h3 a { color: #333; }
.news-content h3 a:hover { color: #0d47a1; }
.news-summary { font-size: 14px; color: #607d8b; line-height: 1.7; margin-bottom: 10px; }
.news-more {
  display: inline-block;
  color: #f57c00 !important;
  font-size: 14px;
  font-weight: 600;
  transition: all .2s;
}
.news-more:hover { color: #e65100 !important; }

/* ---------- FAQ分类 ---------- */
.faq-category {
  margin-bottom: 36px;
}
.faq-category:last-child { margin-bottom: 0; }
.faq-category-title {
  font-size: 20px;
  color: #0d47a1;
  margin-bottom: 20px;
  padding-left: 14px;
  border-left: 4px solid #f57c00;
}

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  /* 联系我们页 */
  .contact-info-cards { grid-template-columns: 1fr; }
  .work-hours { padding: 20px; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form-wrapper { padding: 24px 16px; }
  .flow-steps { flex-direction: column; align-items: center; gap: 0; }
  .flow-arrow { transform: rotate(90deg); margin: 8px 0; padding: 0; font-size: 20px; }
  .flow-step { max-width: 260px; }

  /* 关于我们页 */
  .about-intro-content { flex-direction: column; }
  .about-img { flex: none; width: 100%; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .strength-grid { grid-template-columns: 1fr; }
  .culture-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }

  /* 工程案例页 */
  .case-grid-full { grid-template-columns: 1fr; }

  /* 新闻列表页 */
  .news-item { flex-direction: column; }
  .news-date-tag { min-width: auto; }

  /* 首页 & 产品详情页 */
  .adv-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .scenario-grid { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .type-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}