/* ============================================================
   东科办公家具 官网样式 - 对标 021lingqi.com
   ============================================================ */
:root {
  --primary: #E74A45;
  --primary-dark: #c93a35;
  --dark: #1a1a1a;
  --dark2: #28292a;
  --text: #333;
  --text-light: #666;
  --muted: #999;
  --bg: #ffffff;
  --bg-gray: #f5f5f5;
  --border: #e5e5e5;
  --radius: 4px;
  --shadow: 0 2px 12px rgba(0,0,0,.08);
  --shadow-hover: 0 8px 30px rgba(0,0,0,.12);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: "Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
  color: var(--text); background: var(--bg); font-size: 15px; line-height: 1.7;
}
img { max-width: 100%; height: auto; display: block; border: 0; }
a { color: inherit; text-decoration: none; transition: all .3s; }
a:hover { color: var(--primary); }
ul { list-style: none; }
h1, h2, h3 { color: var(--dark); line-height: 1.4; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 15px; }

/* ---------- 固定导航 ---------- */
.site-header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 9999;
  background: var(--dark); transition: all .4s ease;
}
.site-header-wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 70px; position: relative;
}
.site-header .logo {
  display: flex; align-items: center; gap: 10px; flex-shrink: 0;
}
.site-header .logo-mark {
  width: 44px; height: 44px; border-radius: 4px;
  background: var(--primary); color: #fff;
  font-size: 20px; font-weight: bold;
  display: flex; align-items: center; justify-content: center;
}
.site-header .logo-text strong {
  font-size: 20px; color: #fff; letter-spacing: 1px;
}
.site-header .logo-text em {
  font-style: normal; font-size: 10px; color: rgba(255,255,255,.6); letter-spacing: .5px;
  display: block;
}
.site-header .tel {
  color: var(--primary); font-size: 18px; font-weight: bold;
  margin-left: 20px; padding-top: 2px; flex-shrink: 0;
}
.site-header .tel a { color: var(--primary); }

/* 主导航 */
.site-header nav { margin-left: auto; }
.site-header nav ul { display: flex; align-items: center; }
.site-header nav li { position: relative; }
.site-header nav li > a,
.site-header nav li > em a {
  display: block; position: relative;
  font-size: 15px; color: #fff; padding: 24px 18px;
  font-style: normal;
}
.site-header nav li > a::before,
.site-header nav li > em a::before {
  content: ""; position: absolute; bottom: 18px; left: 50%;
  width: 0; height: 2px; background: var(--primary);
  transition: all .3s ease;
}
.site-header nav li > a:hover,
.site-header nav li > em a:hover,
.site-header nav li.aon > a,
.site-header nav li.aon > em a {
  color: var(--primary);
}
.site-header nav li > a:hover::before,
.site-header nav li > em a:hover::before,
.site-header nav li.aon > a::before,
.site-header nav li.aon > em a::before {
  left: 18px; width: calc(100% - 36px);
}

/* 移动端菜单按钮 */
.open_menu {
  display: none; position: absolute; top: 50%; right: 0;
  width: 30px; height: 24px; margin-top: -12px; cursor: pointer; z-index: 100;
}
.open_menu i {
  width: 100%; height: 3px; background: #fff;
  position: absolute; top: 50%; margin-top: -1.5px;
  transition: all .3s;
}
.open_menu i::before,
.open_menu i::after {
  content: ''; position: absolute; left: 0; width: 100%; height: 100%;
  background: #fff; transition: all .3s;
}
.open_menu i::before { top: -9px; }
.open_menu i::after { top: 9px; }
.open_menu.on i { background: transparent; }
.open_menu.on i::before { top: 0; transform: rotate(45deg); background: #fff; }
.open_menu.on i::after { top: 0; transform: rotate(-45deg); background: #fff; }

/* 下拉菜单（一行一个菜单项） */
.sub-nav {
  position: absolute; top: 100%; left: 0;
  background: #fff; min-width: 168px;
  box-shadow: var(--shadow); border-radius: 0 0 var(--radius) var(--radius);
  border-top: 2px solid var(--primary);
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all .3s ease; padding: 6px 0;
}
.site-header nav li:hover .sub-nav { opacity: 1; visibility: visible; transform: translateY(0); }
.sub-nav li { float: none; display: block; width: 100%; }
.sub-nav li a {
  display: block; padding: 11px 20px; font-size: 14px;
  color: var(--text) !important; border-bottom: 1px solid #f0f0f0;
  white-space: nowrap; text-align: left;
}
.sub-nav li:last-child a { border-bottom: 0; }
.sub-nav li a:hover { color: var(--primary) !important; background: #fafafa; }
.sub-nav li a::before { display: none !important; }

/* ---------- 占位 ---------- */
.header-placeholder { height: 70px; }

/* ---------- Banner ---------- */
.banner { position: relative; overflow: hidden; height: calc(100vh - 70px); min-height: 520px; }
.banner-track { display: flex; height: 100%; transition: transform .6s ease; }
.banner-slide {
  min-width: 100%; height: 100%; position: relative;
  display: flex; align-items: center; justify-content: center;
}
.banner-slide img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 1;
}
.banner-slide::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,.55) 0%, rgba(0,0,0,.15) 100%);
  z-index: 2;
}
.banner-content {
  position: relative; z-index: 3; color: #fff;
  max-width: 700px; padding: 0 20px;
}
.banner-content h1 {
  font-size: 42px; color: #fff; margin-bottom: 16px;
  text-shadow: 0 2px 8px rgba(0,0,0,.3); line-height: 1.2;
}
.banner-content p {
  font-size: 18px; opacity: .9; margin-bottom: 30px;
}
.banner-btn {
  display: inline-block; background: var(--primary);
  color: #fff; padding: 12px 36px; border-radius: var(--radius);
  font-size: 16px; font-weight: 500;
}
.banner-btn:hover { background: var(--primary-dark); color: #fff; }

.banner-dots {
  position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 10px; z-index: 10;
}
.banner-dots span {
  width: 10px; height: 10px; border-radius: 50%;
  background: rgba(255,255,255,.4); cursor: pointer;
  transition: all .3s;
}
.banner-dots span.active { background: var(--primary); width: 28px; border-radius: 5px; }

/* ---------- 板块标题 ---------- */
.section-tit {
  text-align: center; padding: 60px 0 40px;
}
.section-tit h2 {
  font-size: 32px; color: var(--dark); margin-bottom: 8px;
  position: relative; display: inline-block;
}
.section-tit h2::after {
  content: ''; position: absolute; bottom: -10px; left: 50%;
  transform: translateX(-50%); width: 50px; height: 3px;
  background: var(--primary);
}
.section-tit p {
  font-size: 14px; color: var(--muted); margin-top: 18px;
  letter-spacing: 2px; text-transform: uppercase;
}
.section-tit .desc {
  font-size: 15px; color: var(--text-light); margin-top: 12px;
  max-width: 700px; margin-left: auto; margin-right: auto;
}

/* ---------- Slogan 核心数据 ---------- */
.slogan-block {
  background: var(--dark2); padding: 50px 0; color: #fff;
}
.slogan-list {
  display: flex; justify-content: space-around; text-align: center;
}
.slogan-item .num {
  font-size: 42px; font-weight: bold; color: var(--primary);
  line-height: 1.2;
}
.slogan-item .num span { font-size: 18px; }
.slogan-item .label {
  font-size: 15px; color: rgba(255,255,255,.7); margin-top: 8px;
}

/* ---------- 为什么选择我们 ---------- */
.why-section { background: var(--bg); padding-bottom: 60px; }
.why-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.why-card {
  text-align: center; padding: 30px 20px;
  border: 1px solid var(--border); border-radius: var(--radius);
  transition: all .3s;
}
.why-card:hover {
  box-shadow: var(--shadow-hover); border-color: transparent;
  transform: translateY(-4px);
}
.why-card .icon {
  width: 60px; height: 60px; margin: 0 auto 16px;
  background: var(--primary); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 24px;
}
.why-card h3 { font-size: 18px; margin-bottom: 8px; }
.why-card p { font-size: 14px; color: var(--text-light); }

.why-cta {
  display: flex; justify-content: center; gap: 20px; margin-top: 40px;
}
.why-cta a {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 32px; border-radius: var(--radius); font-size: 15px;
}
.why-cta .btn-primary {
  background: var(--primary); color: #fff;
}
.why-cta .btn-primary:hover { background: var(--primary-dark); color: #fff; }
.why-cta .btn-outline {
  border: 1px solid var(--primary); color: var(--primary);
}
.why-cta .btn-outline:hover { background: var(--primary); color: #fff; }

/* ---------- 案例 / 产品展示 ---------- */
.showcase-section { background: var(--bg-gray); padding-bottom: 60px; }
.filter-tabs {
  display: flex; justify-content: center; gap: 8px; flex-wrap: wrap;
  margin-bottom: 30px;
}
.filter-tabs span,
.filter-tabs a {
  padding: 8px 20px; border-radius: 20px; font-size: 14px;
  cursor: pointer; border: 1px solid var(--border);
  background: #fff; color: var(--text-light);
}
.filter-tabs span.active,
.filter-tabs a.active,
.filter-tabs span:hover,
.filter-tabs a:hover {
  background: var(--primary); color: #fff; border-color: var(--primary);
}

.showcase-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.showcase-item {
  background: #fff; border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); transition: all .3s;
}
.showcase-item:hover {
  box-shadow: var(--shadow-hover); transform: translateY(-4px);
}
.showcase-item .pic {
  position: relative; overflow: hidden; padding-top: 66%;
}
.showcase-item .pic img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; transition: transform .5s;
}
.showcase-item:hover .pic img { transform: scale(1.06); }
.showcase-item .info { padding: 16px 18px; }
.showcase-item .info h3 {
  font-size: 16px; margin-bottom: 6px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.showcase-item .info .meta {
  font-size: 13px; color: var(--muted);
}
.showcase-item .info .meta span { margin-right: 12px; }

/* ---------- 首页案例/产品 瀑布流大图(参考021lingqi) ---------- */
.showcase-section .container,
.product-section .container {
  max-width: none;
  padding: 0 clamp(40px, 4.5vw, 90px);
}
.masonry-wall {
  columns: 4; column-gap: 20px;
}
.m-item {
  display: block; break-inside: avoid; margin: 0 0 20px;
  background: #fff; border-radius: 6px; overflow: hidden;
  box-shadow: var(--shadow); transition: all .35s;
}
.m-item:hover {
  box-shadow: var(--shadow-hover); transform: translateY(-4px);
}
.m-item .m-pic { overflow: hidden; }
.m-item .m-pic img {
  display: block; width: 100%; height: auto;
  transition: transform .5s;
}
.m-item:hover .m-pic img { transform: scale(1.05); }
.m-item .m-info { padding: 13px 15px 15px; }
.m-item .m-info h3 {
  font-size: 15px; margin-bottom: 5px; color: #222;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.m-item .m-info .meta { font-size: 12px; color: var(--muted); }
.m-item .m-info .meta span { margin-right: 10px; }
@media (max-width: 1024px) {
  .masonry-wall { columns: 3; }
}
@media (max-width: 768px) {
  .showcase-section .container,
  .news-section .container,
  .product-section .container { padding: 0 12px; }
  .masonry-wall { columns: 2; column-gap: 12px; }
  .m-item { margin-bottom: 12px; }
}

.more-link {
  text-align: center; margin-top: 30px;
}
.more-link a {
  display: inline-block; padding: 10px 32px;
  border: 1px solid var(--primary); color: var(--primary);
  border-radius: 20px; font-size: 14px;
}
.more-link a:hover { background: var(--primary); color: #fff; }

/* ---------- 产品分类展示 ---------- */
.product-section { background: var(--bg); padding-bottom: 60px; }

/* 首页产品区：3列大图网格(共9个)，与案例区两边对齐 */
.product-grid {
  columns: auto; column-gap: normal;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.product-grid .m-item { margin: 0; }
.product-grid .m-item .m-pic { aspect-ratio: 4 / 3; }
.product-grid .m-item .m-pic img {
  width: 100%; height: 100%; object-fit: cover;
}
.product-grid .m-item .m-info { padding: 16px 18px 18px; }
.product-grid .m-item .m-info h3 { font-size: 17px; }
.product-grid .m-item .m-info .meta { font-size: 13px; }
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
}
@media (max-width: 600px) {
  .product-grid { grid-template-columns: 1fr; }
}

/* ---------- 新闻 ---------- */
.news-section { background: var(--bg-gray); padding-bottom: 60px; }
/* 家具动态：容器通栏，与案例/产品两边对齐 */
.news-section .container {
  max-width: none;
  padding: 0 clamp(40px, 4.5vw, 90px);
}
.news-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.news-item {
  background: #fff; border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); transition: all .3s;
}
.news-item:hover { box-shadow: var(--shadow-hover); }
.news-item .pic { position: relative; overflow: hidden; padding-top: 56%; }
.news-item .pic img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
}
.news-item .info { padding: 16px 18px; }
.news-item .info .date {
  font-size: 12px; color: var(--muted); margin-bottom: 6px;
}
.news-item .info h3 {
  font-size: 15px; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- 客户选择 ---------- */
.clients-section { background: var(--dark2); padding-bottom: 60px; }
.clients-section .section-tit h2 { color: #fff; }
.clients-section .section-tit p { color: rgba(255,255,255,.5); }
.clients-grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px;
}
.clients-grid .client-item {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius); height: 80px;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.4); font-size: 14px;
  transition: all .3s;
}
.clients-grid .client-item:hover {
  background: rgba(255,255,255,.1); border-color: var(--primary);
  color: #fff;
}

/* ---------- 联系区域 ---------- */
.contact-section { background: var(--bg); padding: 60px 0; }
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
}
.contact-info h2 { font-size: 28px; margin-bottom: 20px; }
.contact-info .item {
  display: flex; gap: 16px; margin-bottom: 20px;
}
.contact-info .item .icon {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; flex-shrink: 0;
}
.contact-info .item h4 { font-size: 16px; margin-bottom: 4px; }
.contact-info .item p { font-size: 14px; color: var(--text-light); }

.contact-form { background: var(--bg-gray); padding: 30px; border-radius: var(--radius); }
.contact-form h3 { font-size: 20px; margin-bottom: 20px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; margin-bottom: 6px; color: var(--text-light); }
.form-group input,
.form-group textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--border);
  border-radius: var(--radius); font-size: 14px; font-family: inherit;
  transition: border .3s;
}
.form-group input:focus,
.form-group textarea:focus { outline: none; border-color: var(--primary); }
.form-group textarea { min-height: 100px; resize: vertical; }
.btn-submit {
  width: 100%; padding: 14px; background: var(--primary); color: #fff;
  border: 0; border-radius: var(--radius); font-size: 16px; cursor: pointer;
  transition: background .3s;
}
.btn-submit:hover { background: var(--primary-dark); }

/* ---------- 面包屑 ---------- */
.breadcrumb {
  background: var(--bg-gray); padding: 14px 0; font-size: 13px; color: var(--muted);
}
.breadcrumb a { color: var(--text-light); }
.breadcrumb a:hover { color: var(--primary); }

/* ---------- 列表页 ---------- */
.page-content { padding: 40px 0 60px; }
.page-title {
  text-align: center; padding: 50px 0 30px;
  background: linear-gradient(135deg, var(--dark2), var(--dark));
  color: #fff;
}
.page-title h1 { font-size: 32px; color: #fff; margin-bottom: 8px; }
.page-title p { font-size: 14px; color: rgba(255,255,255,.6); }

/* 产品列表（一行三个大图） */
.product-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.product-card {
  background: #fff; border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); transition: all .3s;
}
.product-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.product-card .pic { position: relative; overflow: hidden; padding-top: 75%; }
.product-card .pic img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.product-card:hover .pic img { transform: scale(1.05); }
.product-card .info { padding: 16px 18px; text-align: center; }
.product-card .info h3 { font-size: 16px; margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.product-card .info .price { color: var(--primary); font-size: 14px; font-weight: bold; }

/* 分页 */
.pagination { display: flex; justify-content: center; gap: 6px; margin-top: 40px; }
.pagination a, .pagination span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 36px; height: 36px; padding: 0 10px;
  border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 14px; color: var(--text-light);
}
.pagination a:hover, .pagination span.current {
  background: var(--primary); color: #fff; border-color: var(--primary);
}

/* 详情页 */
.detail-wrap { max-width: 900px; margin: 0 auto; }

/* 详情两栏（对标装饰公司详情版式：左正文+右栏目） */
.detail-layout { display: flex; gap: 26px; align-items: flex-start; }
.col-main { flex: 1; min-width: 0; }
.detail-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 34px 38px 38px;
}
.detail-tag {
  display: inline-block; background: rgba(231,74,69,.08);
  color: var(--primary); font-size: 12px; padding: 3px 12px;
  border-radius: 3px; margin-bottom: 14px;
}
.detail-header h1 { font-size: 27px; line-height: 1.4; margin-bottom: 16px; }
.detail-header .meta {
  font-size: 13px; color: var(--muted); display: flex;
  flex-wrap: wrap; gap: 8px 22px; padding-bottom: 16px;
  border-bottom: 1px dashed var(--border);
}
.detail-body { padding-top: 8px; font-size: 15px; line-height: 2; color: var(--text); }
.detail-body img { max-width: 100%; margin: 18px auto; border-radius: var(--radius); display: block; }
.detail-body p { margin-bottom: 16px; }
.detail-body h2, .detail-body h3 { margin: 22px 0 10px; line-height: 1.5; }

.detail-cta { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; margin-top: 30px; }
.detail-cta a {
  display: inline-flex; align-items: center; padding: 12px 34px;
  border-radius: var(--radius); font-size: 15px; transition: all .3s;
}
.detail-cta .btn-primary { background: var(--primary); color: #fff; }
.detail-cta .btn-primary:hover { background: var(--primary-dark); color: #fff; }
.detail-cta .btn-outline { border: 1px solid var(--primary); color: var(--primary); }
.detail-cta .btn-outline:hover { background: var(--primary); color: #fff; }

/* 上/下一篇 */
.pn-nav { display: flex; gap: 16px; margin-top: 26px; }
.pn-item {
  flex: 1; min-width: 0; background: #fff;
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 18px; transition: all .3s;
}
.pn-item:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.pn-item span { display: block; font-size: 12px; color: var(--muted); margin-bottom: 5px; }
.pn-item em {
  display: block; font-style: normal; font-size: 14px; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.pn-next { text-align: right; }
.pn-item.disabled { opacity: .55; pointer-events: none; }

/* 正文下相关推荐 */
.rel-block { margin-top: 34px; }
.rel-tit {
  font-size: 19px; font-weight: 700; color: var(--dark);
  border-left: 4px solid var(--primary); padding-left: 12px;
  margin-bottom: 20px;
}

/* 右侧栏 */
.col-side { width: 296px; flex-shrink: 0; display: flex; flex-direction: column; gap: 18px; }
.side-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px 20px 14px;
}
.side-card h3 {
  font-size: 16px; color: var(--dark); padding-bottom: 12px;
  margin-bottom: 10px; border-bottom: 2px solid var(--bg-gray);
  position: relative;
}
.side-card h3::after {
  content: ''; position: absolute; left: 0; bottom: -2px;
  width: 42px; height: 2px; background: var(--primary);
}
.side-card ul { list-style: none; }
.side-cat li a {
  display: block; padding: 8px 12px; border-radius: 6px;
  font-size: 14px; color: var(--text-light); transition: all .2s;
}
.side-cat li a:hover { background: var(--bg); color: var(--primary); }
.side-cat li a.on { background: var(--primary); color: #fff; }
.side-list li { padding: 10px 2px; border-bottom: 1px dashed var(--border); }
.side-list li:last-child { border-bottom: 0; }
.side-list a {
  font-size: 14px; color: var(--text); line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.side-list a:hover { color: var(--primary); }
.side-list span { display: block; font-size: 12px; color: var(--muted); margin-top: 3px; }
.side-cta {
  background: linear-gradient(135deg, var(--dark2), var(--dark));
  border-radius: var(--radius); padding: 24px 22px; color: #fff; text-align: center;
}
.side-cta p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.82); margin-bottom: 14px; }
.side-tel { display: block; font-size: 21px; font-weight: bold; color: #fff; margin-bottom: 13px; letter-spacing: .5px; }
.side-btn {
  display: block; background: var(--primary); color: #fff;
  padding: 11px; border-radius: var(--radius); font-size: 15px;
  transition: background .3s;
}
.side-btn:hover { background: var(--primary-dark); color: #fff; }

/* ---------- 城市页 ---------- */
.city-hero {
  background: linear-gradient(135deg, var(--dark2), var(--dark));
  padding: 80px 0 60px; color: #fff; text-align: center;
}
.city-hero h1 { font-size: 36px; color: #fff; margin-bottom: 12px; }
.city-hero p { font-size: 16px; color: rgba(255,255,255,.7); max-width: 700px; margin: 0 auto; }

.city-section { padding: 50px 0; }
.city-section h2 {
  font-size: 24px; margin-bottom: 24px; padding-left: 14px;
  border-left: 4px solid var(--primary);
}
.city-faq { background: var(--bg-gray); }
.faq-item { margin-bottom: 16px; }
.faq-q {
  background: #fff; padding: 14px 18px; border-radius: var(--radius);
  font-weight: bold; cursor: pointer; display: flex; justify-content: space-between;
  box-shadow: var(--shadow);
}
.faq-q::after { content: '+'; color: var(--primary); font-size: 20px; }
.faq-q.open::after { content: '−'; }
.faq-a {
  background: #fff; padding: 14px 18px; border-radius: 0 0 var(--radius) var(--radius);
  color: var(--text-light); font-size: 14px; display: none;
}
.faq-q.open + .faq-a { display: block; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--dark); color: rgba(255,255,255,.5); font-size: 14px;
}
.footer-main { padding: 50px 0 30px; }
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px;
}
.footer-brand .logo-footer {
  display: flex; align-items: center; gap: 10px; margin-bottom: 16px;
}
.footer-brand .logo-mark {
  width: 40px; height: 40px; border-radius: 4px;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: bold;
}
.footer-brand strong { color: #fff; font-size: 18px; }
.footer-brand p { line-height: 1.8; }
.footer-links h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,.5); }
.footer-links a:hover { color: var(--primary); }
.footer-contact h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.footer-contact p { margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.footer-contact a { color: rgba(255,255,255,.5); }
.footer-contact a:hover { color: var(--primary); }
.footer-contact .tel-big {
  font-size: 22px; color: var(--primary); font-weight: bold;
}
.footer-qrcodes { margin-top: 14px; display: flex; gap: 14px; flex-wrap: nowrap; }
.footer-qrcodes .qr-item { text-align: center; width: 112px; flex: 0 0 auto; }
.footer-qrcodes img { width: 112px; height: 112px; border-radius: 8px; background: #fff; padding: 6px; display: block; box-sizing: border-box; }
.footer-qrcodes .qr-item p { margin-top: 6px; font-size: 11px; color: rgba(255,255,255,.45); line-height: 1.4; }

.footer-map { margin-top: 16px; border-radius: var(--radius); overflow: hidden; }
.footer-map iframe { width: 100%; height: 140px; border: 0; display: block; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0;
  text-align: center; font-size: 13px;
}
.footer-bottom a { color: rgba(255,255,255,.4); margin: 0 10px; }
.footer-bottom a:hover { color: var(--primary); }

/* ---------- 返回顶部 ---------- */
.backtop {
  position: fixed; right: 20px; bottom: 80px;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; cursor: pointer; opacity: 0; visibility: hidden;
  transition: all .3s; z-index: 100; box-shadow: 0 2px 10px rgba(231,74,69,.4);
}
.backtop.show { opacity: 1; visibility: visible; }
.backtop:hover { background: var(--primary-dark); transform: translateY(-2px); }

/* ---------- 浮动联系条(移动端) ---------- */
.mbar {
  position: fixed; bottom: 0; left: 0; right: 0;
  background: #fff; border-top: 1px solid var(--border);
  display: none; z-index: 99;
}
.mbar-inner { display: flex; }
.mbar a {
  flex: 1; text-align: center; padding: 10px 0;
  font-size: 13px; color: var(--text);
}
.mbar a.call { background: var(--primary); color: #fff; }
.mbar a.msg { background: var(--dark2); color: #fff; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .showcase-grid { grid-template-columns: repeat(2, 1fr); }
  .product-list { grid-template-columns: repeat(2, 1fr); }
  .clients-grid { grid-template-columns: repeat(4, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 992px) {
  .site-header nav { display: none; }
  .site-header nav.open { display: block; position: fixed; top: 70px; left: 0; right: 0; bottom: 0; background: var(--dark); overflow-y: auto; }
  .site-header nav.open ul { flex-direction: column; padding: 10px 20px; }
  .site-header nav.open li { width: 100%; border-bottom: 1px solid rgba(255,255,255,.08); }
  .site-header nav.open li > a,
  .site-header nav.open li > em a { padding: 14px 0; }
  .site-header nav.open li > a::before,
  .site-header nav.open li > em a::before { display: none; }
  .site-header nav.open .sub-nav { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; background: transparent; padding: 0 0 10px 16px; }
  .site-header nav.open .sub-nav li a { color: rgba(255,255,255,.6) !important; border-bottom: 0; padding: 8px 0; }
  .open_menu { display: block; }
  .site-header .tel { display: none; }

  .banner { height: 480px; }
  .banner-content h1 { font-size: 28px; }
  .banner-content p { font-size: 15px; }

  .detail-layout { flex-direction: column; }
  .col-side { width: 100%; display: grid; grid-template-columns: 1fr 1fr; align-items: start; }
  .side-cta { grid-column: 1 / -1; }

  .slogan-list { flex-wrap: wrap; gap: 20px; }
  .slogan-item { width: 45%; }

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

@media (max-width: 600px) {
  .container { padding: 0 12px; }
  .site-header-wrap { height: 60px; }
  .header-placeholder { height: 60px; }
  .site-header nav.open { top: 60px; }
  .site-header .logo-mark { width: 38px; height: 38px; font-size: 18px; }
  .site-header .logo-text strong { font-size: 16px; }
  .site-header .logo-text em { font-size: 9px; }

  .banner { height: 340px; }
  .banner-content h1 { font-size: 22px; }
  .banner-content p { font-size: 14px; }

  .col-side { grid-template-columns: 1fr; }
  .detail-card { padding: 22px 16px 26px; }
  .pn-nav { flex-direction: column; }
  .pn-next { text-align: left; }

  .section-tit { padding: 40px 0 24px; }
  .section-tit h2 { font-size: 24px; }

  .slogan-item { width: 48%; }
  .slogan-item .num { font-size: 28px; }
  .slogan-item .label { font-size: 13px; }

  .showcase-grid,
  .product-list,
  .news-grid,
  .why-grid,
  .clients-grid { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-main { padding: 30px 0; }

  .mbar { display: block; }
  body { padding-bottom: 50px; }

  .page-title { padding: 30px 0 20px; }
  .page-title h1 { font-size: 24px; }
}

/* ============================================================
   联系我们页 - 地图定位
   ============================================================ */
.map-section { margin-top: 50px; }
.map-head { text-align: center; margin-bottom: 24px; }
.map-head h2 { font-size: 26px; margin-bottom: 8px; }
.map-head p { color: var(--muted); font-size: 14px; margin-bottom: 14px; }
.map-box {
  position: relative; height: 420px; border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow); background: #f5f5f5;
}
.map-box #tmapContainer > div { height: 100%; }
.map-fallback {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 10px;
  background: linear-gradient(135deg, #eef2f5 0%, #dde5ec 100%);
}
.map-fallback .map-pin {
  width: 54px; height: 54px; border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg); background: var(--primary);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 18px rgba(231,74,69,.4);
}
.map-fallback .map-pin::before {
  content: ""; width: 20px; height: 20px; border-radius: 50%;
  background: #fff; transform: rotate(45deg);
}
.map-fallback p { font-size: 16px; font-weight: bold; color: var(--text); }
.map-fallback span { font-size: 13px; color: var(--muted); }

@media (max-width: 992px) {
  .map-box { height: 300px; }
}

/* ============================================================
   服务体系页
   ============================================================ */
.svc-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 10px; }
.svc-card {
  background: #fff; border-radius: var(--radius); padding: 28px 24px;
  box-shadow: var(--shadow); transition: all .3s; position: relative; overflow: hidden;
}
.svc-card::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 3px; width: 0;
  background: var(--primary); transition: width .3s;
}
.svc-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.svc-card:hover::after { width: 100%; }
.svc-num { font-size: 34px; font-weight: 800; color: rgba(231,74,69,.15); line-height: 1; margin-bottom: 12px; }
.svc-card h3 { font-size: 17px; margin-bottom: 10px; }
.svc-card p { font-size: 13.5px; color: var(--muted); line-height: 1.7; }

.svc-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; margin-top: 20px; }
.svc-step {
  background: #fff; border-radius: var(--radius); padding: 26px 18px;
  text-align: center; border: 1px solid var(--border); transition: all .3s;
}
.svc-step:hover { border-color: var(--primary); box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.svc-icon {
  width: 56px; height: 56px; margin: 0 auto 14px; border-radius: 50%;
  background: rgba(231,74,69,.08); color: var(--primary);
  font-size: 24px; display: flex; align-items: center; justify-content: center;
}
.svc-step h3 { font-size: 16px; margin-bottom: 10px; }
.svc-step p { font-size: 13px; color: var(--muted); line-height: 1.7; text-align: justify; }

.svc-cta { margin-top: 50px; }
.svc-cta-inner {
  background: linear-gradient(120deg, #1a1a1a 0%, #2c2c2c 100%);
  border-radius: var(--radius); padding: 36px 40px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.svc-cta-inner h3 { color: #fff; font-size: 22px; margin-bottom: 8px; }
.svc-cta-inner p { color: rgba(255,255,255,.65); font-size: 14px; }

@media (max-width: 1080px) {
  .svc-cards { grid-template-columns: repeat(2, 1fr); }
  .svc-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .svc-cards, .svc-steps { grid-template-columns: 1fr; }
  .svc-cta-inner { padding: 26px 22px; }
}

/* 详情正文列表样式（关于我们等单页） */
.detail-body ul { margin: 0 0 16px 0; padding-left: 0; list-style: none; }
.detail-body ul li {
  position: relative; padding-left: 22px; margin-bottom: 8px; color: var(--text-light);
}
.detail-body ul li::before {
  content: ""; position: absolute; left: 4px; top: 12px;
  width: 8px; height: 8px; border-radius: 2px; background: var(--primary);
}
.detail-body ul li strong { color: var(--text); }

/* 详情正文列表样式（关于我们等单页） */
.detail-body ul { margin: 0 0 16px 0; padding-left: 0; list-style: none; }
.detail-body ul li {
  position: relative; padding-left: 22px; margin-bottom: 8px; color: var(--text-light);
}
.detail-body ul li::before {
  content: ""; position: absolute; left: 4px; top: 12px;
  width: 8px; height: 8px; border-radius: 2px; background: var(--primary);
}
.detail-body ul li strong { color: var(--text); }

/* ===== 荣誉资质证书墙 ===== */
.honor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin: 34px 0 10px; }
.honor-item { margin: 0; background: #fff; border: 1px solid #e8e8e8; border-radius: 10px; padding: 14px; text-align: center; box-shadow: 0 4px 16px rgba(0,0,0,.06); transition: transform .35s ease, box-shadow .35s ease; }
.honor-item:hover { transform: translateY(-6px); box-shadow: 0 14px 32px rgba(0,0,0,.12); }
.honor-img { overflow: hidden; border-radius: 6px; background: #f7f7f7; }
.honor-img img { width: 100%; height: auto; display: block; transition: transform .5s ease; }
.honor-item:hover .honor-img img { transform: scale(1.05); }
.honor-item figcaption { margin-top: 12px; font-size: 14px; color: #333; font-weight: 600; }

/* ===== 工厂实力 ===== */
.factory-hero { margin: 0 0 34px; position: relative; border-radius: 12px; overflow: hidden; box-shadow: 0 8px 28px rgba(0,0,0,.1); }
.factory-hero img { width: 100%; height: auto; display: block; }
.factory-hero figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 14px 22px; background: linear-gradient(transparent, rgba(0,0,0,.62)); color: #fff; font-size: 15px; letter-spacing: 1px; }
.factory-intro { text-align: center; max-width: 760px; margin: 0 auto 30px; }
.factory-intro h2 { font-size: 26px; margin-bottom: 12px; }
.factory-intro p { color: #666; line-height: 1.9; }
.factory-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.factory-item { margin: 0; background: #fff; border-radius: 10px; overflow: hidden; box-shadow: 0 4px 16px rgba(0,0,0,.07); transition: transform .35s ease, box-shadow .35s ease; }
.factory-item:hover { transform: translateY(-6px); box-shadow: 0 14px 32px rgba(0,0,0,.13); }
.factory-img { overflow: hidden; aspect-ratio: 4/3; background: #f2f2f2; }
.factory-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s ease; }
.factory-item:hover .factory-img img { transform: scale(1.06); }
.factory-item figcaption { padding: 13px 16px; font-size: 14px; font-weight: 600; color: #333; text-align: center; }

@media (max-width: 1080px) {
  .honor-grid, .factory-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .honor-grid, .factory-grid { grid-template-columns: 1fr; }
}