/* 柏能实业官网前台样式（蓝为主色，沿用旧站视觉） */
:root {
  --primary: #005aa1;
  --primary-dk: #00477d;
  --primary-2: #1b769e;
  --nav-top: #2f8bb8;
  --nav-bot: #12658d;
  --accent: #f7781f;
  --ink: #1d2733;
  --ink-2: #4a5b6b;
  --muted: #8a97a5;
  --line: #dfe6ec;
  --bg: #f4f7fa;
  --white: #fff;
  --radius: 6px;
  --shadow: 0 6px 22px rgba(15, 50, 85, .1);
  --wrap: 1200px;
  font-size: 16px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink-2);
  background: var(--white);
  line-height: 1.7;
  font-size: 14px;
}
img { max-width: 100%; height: auto; border: 0; vertical-align: middle; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--primary); }
h1, h2, h3, h4 { margin: 0; line-height: 1.4; font-weight: 700; color: var(--ink); }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; }
input, textarea, select { font: inherit; color: inherit; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 10px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 999;
  background: var(--primary); color: #fff; padding: 10px 16px; border-radius: 6px;
}
.skip-link:focus { top: 12px; color: #fff; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 22px; border-radius: 4px; border: 1px solid transparent;
  font-weight: 600; font-size: 14px; cursor: pointer; transition: .2s; white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dk); color: #fff; }
.btn-outline { border-color: var(--primary); color: var(--primary); background: #fff; }
.btn-outline:hover { background: #eef5fb; color: var(--primary-dk); }
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { background: #eaf3fa; color: var(--primary); }
.btn-block { display: flex; width: 100%; }

/* ---------- 页头 ---------- */
.topbar { background: #eeeeee; color: #333; font-size: 13px; border-bottom: 1px solid #e2e2e2; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; min-height: 32px; }
.topbar-welcome { color: #555; }
.topbar-links a { padding: 0 10px; color: #333; border-right: 1px solid #cfcfcf; line-height: 1; }
.topbar-links a:last-child { border-right: 0; }
.topbar-links a:hover { color: var(--primary); }

.masthead {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; min-height: 112px; padding: 14px 10px;
}
.brand { display: flex; align-items: center; gap: 18px; min-width: 0; }
.brand img { width: 206px; height: 78px; object-fit: contain; }
.brand-text { display: flex; flex-direction: column; min-width: 0; }
.brand-text strong { font-size: 26px; letter-spacing: 1px; color: #000; font-weight: 700; }
.brand-text small { font-size: 14px; color: #444; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hotline { display: flex; flex-direction: column; align-items: flex-end; flex: none; }
.hotline-label { font-size: 14px; color: #333; }
.hotline-num { font-size: 28px; font-weight: 700; color: var(--accent); line-height: 1.3; }
.hotline-mobile { font-size: 20px; font-weight: 700; color: var(--accent); line-height: 1.4; }

.main-nav { position: relative; z-index: 30; background: linear-gradient(180deg, var(--nav-top) 0%, var(--nav-bot) 100%); }
.main-nav > .wrap { display: flex; align-items: stretch; padding: 0 10px; }
.nav-list { display: flex; flex: 1; min-width: 0; }
.nav-item { position: relative; flex: 1; display: flex; }
.nav-item + .nav-item { border-left: 1px solid rgba(255, 255, 255, .2); }
.nav-link {
  display: flex; flex: 1; align-items: center; justify-content: center; gap: 5px;
  height: 54px; color: #fff; font-size: 17px; font-weight: 600;
  white-space: nowrap; transition: background .2s;
}
.nav-link:hover, .nav-link.is-active { background: rgba(0, 0, 0, .18); color: #fff; }
.caret {
  width: 0; height: 0; border: 4px solid transparent; border-top-color: rgba(255,255,255,.9);
  margin-top: 3px;
}
.nav-sub {
  position: absolute; left: 0; top: 100%; min-width: 208px; background: #12658d;
  box-shadow: 0 10px 26px rgba(10, 35, 60, .22); padding: 6px 0; display: none; z-index: 40;
}
.nav-sub-wide { width: 430px; column-count: 2; column-gap: 0; left: 50%; transform: translateX(-50%); }
.nav-item:hover .nav-sub, .nav-item:focus-within .nav-sub { display: block; }
.nav-sub a {
  display: block; padding: 8px 18px; font-size: 14px; color: #fff;
  border-bottom: 1px solid rgba(255,255,255,.12); break-inside: avoid;
}
.nav-sub a:hover, .nav-sub a.is-current { background: var(--primary); color: #fff; }
.nav-toggle { display: none; }

/* ---------- 首页横幅 ---------- */
.banner { position: relative; height: 500px; overflow: hidden; background: #e9eef2; }
.banner-track { position: absolute; inset: 0; }
.banner-slide {
  position: absolute; inset: 0; background-repeat: no-repeat; background-position: center top;
  background-size: cover; opacity: 0; transition: opacity .8s ease;
}
.banner-slide.is-active { opacity: 1; }
.banner-dots { position: absolute; z-index: 5; left: 0; right: 0; bottom: 16px; display: flex; gap: 6px; justify-content: center; }
.banner-dots button { width: 34px; height: 6px; border: 0; background: rgba(255,255,255,.55); cursor: pointer; padding: 0; border-radius: 3px; }
.banner-dots button.is-active { background: var(--primary); }

.kwbar { background: #eeeeee; border-top: 1px solid #e2e2e2; }
.kwbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 52px; font-size: 14px; color: #333; }
.kwbar-inner strong { color: #005aa1; font-weight: 700; }
.kwbar-inner span { color: #666; }

/* ---------- 产品分类 + 产品列表（旧站“pro”版块） ---------- */
.pro { padding: 30px 0 10px; }
.pro-grid { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 24px; align-items: start; }
.pro-side { background: #fff; }
.cat-head {
  background: linear-gradient(180deg, #1c7aab, #14618a); color: #fff;
  padding: 16px 24px; border-radius: 4px 4px 0 0;
}
.cat-head b { display: block; font-size: 24px; font-family: Impact, "Arial Black", sans-serif; font-weight: normal; letter-spacing: 1px; }
.cat-head em { display: block; font-style: normal; font-size: 15px; letter-spacing: 2px; }
.cat-menu { border: 2px solid var(--primary-2); border-top: 0; background: #fff; padding: 14px 12px 20px; }
.cat-menu li { margin-bottom: 14px; }
.cat-group > a {
  display: block; background: #1c7aab; color: #fff; font-size: 15px;
  padding: 8px 14px; border-radius: 4px;
}
.cat-group > a:hover { background: var(--primary); color: #fff; }
.nmenu li { border-bottom: 1px dashed #e6ecf1; }
.nmenu li:last-child { border-bottom: 0; }
.nmenu a { display: block; padding: 7px 10px; font-size: 13.5px; color: #333; }
.nmenu a:hover { color: var(--primary); background: #f4f9fd; }
.pro-tel { margin-top: 16px; padding: 14px 16px; border: 1px solid var(--line); background: #fff; text-align: center; }
.pro-tel p { font-size: 13px; color: #777; }
.pro-tel em { display: block; font-style: normal; font-size: 22px; font-weight: 700; color: var(--accent); }

.pro-main { min-width: 0; }
.pro-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.pro-card {
  display: block; background: #fff; border: 1px solid var(--line); transition: .25s;
  text-align: center; padding: 10px;
}
.pro-card:hover { border-color: #b9d6ea; box-shadow: var(--shadow); }
.pro-card-img { display: block; aspect-ratio: 230 / 200; overflow: hidden; background: #f6f9fb; }
.pro-card-img img { width: 100%; height: 100%; object-fit: cover; }
.pro-card span { display: block; margin-top: 8px; font-size: 14px; color: #333; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pro-card:hover span { color: var(--primary); }

/* ---------- 通用区块 ---------- */
.section { padding: 44px 0; }
.section-alt { background: var(--bg); }
.section-title { text-align: center; margin-bottom: 28px; }
.section-title h2 { font-size: 26px; color: var(--primary-2); letter-spacing: 1px; }
.section-title h2 a { color: var(--primary-2); }
.section-title p { font-size: 12px; color: #a8b4bf; text-transform: uppercase; letter-spacing: 1px; margin-top: 4px; }
.section-title h2::after {
  content: ""; display: block; width: 46px; height: 2px; background: var(--primary-2);
  margin: 10px auto 0;
}
.section-more { font-size: 13px; color: var(--muted); }
.section-more:hover { color: var(--primary); }

/* 合作伙伴 */
.partner-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 12px; }
.partner-item { border: 1px solid var(--line); background: #fff; height: 86px; display: flex; align-items: center; justify-content: center; padding: 10px; }
.partner-item img { max-width: 100%; max-height: 100%; object-fit: contain; filter: grayscale(1); transition: .25s; }
.partner-item:hover img { filter: none; }

/* 工程案例 */
.case-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.case-item { position: relative; display: block; overflow: hidden; background: #0e2437; }
.case-item img { width: 100%; aspect-ratio: 311 / 280; object-fit: cover; transition: transform .4s; }
.case-item span {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 22px 12px 8px;
  background: linear-gradient(180deg, rgba(8,25,40,0), rgba(8,25,40,.78));
  color: #fff; font-size: 13px; text-align: center;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.case-item:hover img { transform: scale(1.05); }

/* 合作流程 */
.flow-img { display: block; width: 100%; }

/* 五大优势 */
.adv-list { display: grid; gap: 14px; }
.adv-item {
  display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 18px; align-items: start;
  background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--primary);
  padding: 18px 22px;
}
.adv-no {
  width: 46px; height: 46px; border-radius: 50%; text-align: center;
  background: linear-gradient(180deg, var(--nav-top), var(--nav-bot));
  color: #fff; font: 700 18px/46px Arial, Helvetica, sans-serif; letter-spacing: 1px;
}
.adv-body h3 { font-size: 17px; color: var(--primary); margin-bottom: 6px; }
.adv-body p { font-size: 13.5px; color: #555; line-height: 1.9; }

/* 走进柏能 */
.about-block { display: grid; grid-template-columns: 430px minmax(0, 1fr); gap: 40px; align-items: center; }
.about-block-img img { width: 100%; border: 1px solid var(--line); }
.about-block-text p { font-size: 15px; color: #444; line-height: 2; margin-bottom: 18px; }
.about-block-tel { font-size: 20px; color: var(--accent); margin-bottom: 18px; }
.about-block-tel b { font-size: 26px; }

/* 首页新闻三栏 */
.news-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 26px; }
.news-box { background: #fff; border: 1px solid var(--line); padding: 16px 18px; }
.news-box h2 {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 17px; color: var(--primary); border-bottom: 1px solid var(--line);
  padding-bottom: 10px; margin-bottom: 10px;
}
.news-box h2 a { color: var(--primary); }
.news-box h2 em { font-style: normal; font-size: 12px; font-weight: 400; color: var(--muted); }
.news-box img { display: block; width: 100%; height: 108px; object-fit: cover; margin-bottom: 6px; }
.news-list li { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 7px 0; border-bottom: 1px dashed #eef2f6; }
.news-list li:last-child { border-bottom: 0; }
.news-list .dot { display: inline-block; width: 4px; height: 4px; background: #b8c6d2; flex: none; margin-right: 6px; vertical-align: middle; }
.news-list a { flex: 1; min-width: 0; font-size: 13.5px; color: #444; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-list a:hover { color: var(--primary); }
.news-list time { flex: none; font-size: 12px; color: var(--muted); }
.qa-list li { padding: 8px 0; border-bottom: 1px dashed #eef2f6; }
.qa-list li:last-child { border-bottom: 0; }
.qa-list h3 { font-size: 13.5px; font-weight: 400; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.qa-list h3 a:hover { color: var(--primary); }
.qa-list p { font-size: 12px; color: var(--muted); margin-top: 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 咨询条 */
.cta-bar { background: linear-gradient(90deg, #0b5b94, #1c7aab); color: #fff; padding: 26px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cta-inner h2 { font-size: 22px; color: #fff; }
.cta-inner p { margin-top: 6px; color: rgba(255,255,255,.85); font-size: 13px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.cta-actions .btn-light { color: var(--primary); }

/* ---------- 内页通用 ---------- */
.page-body { padding-top: 16px; padding-bottom: 50px; }
.breadcrumb { font-size: 13px; color: var(--muted); padding: 6px 0 14px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.breadcrumb em { font-style: normal; color: #c3ccd5; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { color: var(--ink-2); }
.page-head { text-align: center; padding: 4px 0 24px; }
.page-head h1 { font-size: 28px; color: var(--primary-2); }
.page-head p { color: var(--muted); margin-top: 8px; font-size: 13px; }

.with-side { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 30px; align-items: start; }
.side { display: flex; flex-direction: column; gap: 20px; }
.side-box { border: 1px solid var(--line); padding: 16px; background: #fff; }
.side-box h3 { font-size: 16px; color: var(--primary); padding-bottom: 10px; border-bottom: 1px solid var(--line); margin-bottom: 10px; position: relative; }
.side-box h3::after { content: ""; position: absolute; left: 0; bottom: -1px; width: 36px; height: 2px; background: var(--primary-2); }
.side-cats li a { display: flex; justify-content: space-between; gap: 8px; padding: 8px 0; font-size: 13.5px; color: #444; border-bottom: 1px dashed #eef2f6; }
.side-cats li:last-child a { border-bottom: 0; }
.side-cats li a span { color: var(--muted); font-size: 12px; }
.side-cats li.is-current a, .side-cats li a:hover { color: var(--primary); }
.side-contact p { font-size: 13.5px; color: #444; margin-bottom: 5px; }
.side-tel { font-size: 20px !important; font-weight: 700; color: var(--accent) !important; }
.side-mail { word-break: break-all; }
.side-contact .btn { margin-top: 10px; }
.side-products li a { display: flex; align-items: center; gap: 10px; padding: 8px 0; font-size: 13px; color: #444; border-bottom: 1px dashed #eef2f6; }
.side-products li:last-child a { border-bottom: 0; }
.side-thumb { width: 60px; height: 54px; object-fit: cover; background: #f3f6f9; flex: none; }
.side-articles li { padding: 8px 0; border-bottom: 1px dashed #eef2f6; font-size: 13.5px; }
.side-articles li:last-child { border-bottom: 0; }
.side-articles li a { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: #444; }
.side-articles li a:hover { color: var(--primary); }
.side-articles li span { font-size: 12px; color: var(--muted); }

.a-list li { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 16px; border: 1px solid var(--line); margin-bottom: 10px; background: #fff; }
.a-list li a { font-size: 14.5px; color: #333; }
.a-list li:hover { border-color: #b9d6ea; background: #fbfdff; }
.a-date { color: var(--muted); font-size: 13px; flex: none; }
.result-title { font-size: 18px; color: var(--primary); margin: 26px 0 14px; padding-left: 10px; border-left: 3px solid var(--primary-2); }
.empty-hint { color: var(--muted); padding: 26px 0; }
.empty { color: var(--muted); padding: 8px 0; }

/* 栏目卡片（频道 / 子栏目） */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cat-card {
  position: relative; display: flex; flex-direction: column; justify-content: flex-end;
  min-height: 170px; overflow: hidden; background: #0e2437; padding: 14px; color: #fff;
}
.cat-card::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(10,25,40,.05) 30%, rgba(10,25,40,.82) 100%);
}
.cat-card-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform .4s; }
.cat-card:hover .cat-card-img { transform: scale(1.05); }
.cat-card-name { font-size: 16px; font-weight: 700; }
.cat-card-count { font-size: 12px; color: rgba(255,255,255,.8); margin-top: 3px; }
.ph-img { display: block; width: 100%; height: 100%; background: #f2f6f9; }

/* 产品 / 文章列表卡片 */
.p-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.p-card {
  background: #fff; border: 1px solid var(--line);
  transition: .25s; display: flex; flex-direction: column;
}
.p-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: #b9d6ea; }
.p-card-media { display: block; aspect-ratio: 230 / 200; background: #f6f9fb; overflow: hidden; }
.p-card-media img { width: 100%; height: 100%; object-fit: cover; }
.p-card-body { padding: 10px 12px 12px; display: flex; flex-direction: column; flex: 1; }
.p-card-body h3 { font-size: 14px; text-align: center; margin-bottom: 6px; font-weight: 400; }
.p-card-body h3 a { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; color: #333; }
.p-card-body h3 a:hover { color: var(--primary); }
.p-card-body p { font-size: 12px; color: var(--muted); flex: 1; display: none; }
.p-card-body .more { margin-top: 8px; font-size: 12px; color: var(--primary); text-align: center; }

/* 分页 */
.pager { display: flex; justify-content: center; align-items: center; gap: 6px; margin-top: 28px; flex-wrap: wrap; }
.pg-btn, .pg-num {
  min-width: 36px; height: 36px; padding: 0 12px; display: inline-flex; align-items: center;
  justify-content: center; border: 1px solid var(--line); font-size: 14px; color: #444; background: #fff;
}
.pg-num.is-current { background: var(--primary); border-color: var(--primary); color: #fff; }
.pg-btn.is-disabled { color: #c3ccd5; cursor: default; }
.pg-more { color: var(--muted); }
a.pg-btn:hover, a.pg-num:hover { border-color: var(--primary); color: var(--primary); }

/* ---------- 产品详情 ---------- */
.product-top { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; margin-bottom: 34px; }
.product-gallery { min-width: 0; }
.pg-main { border: 1px solid var(--line); overflow: hidden; background: #f7f9fb; aspect-ratio: 4 / 3; display: flex; align-items: center; justify-content: center; }
.pg-main-img { width: 100%; height: 100%; object-fit: contain; }
.pg-thumbs { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.pg-thumb { padding: 0; width: 78px; height: 78px; border: 2px solid transparent; overflow: hidden; cursor: pointer; background: #f7f9fb; }
.pg-thumb img { width: 100%; height: 100%; object-fit: cover; }
.pg-thumb.is-active { border-color: var(--primary); }
.product-info h1 { font-size: 24px; }
.product-sum { color: #555; margin-top: 12px; font-size: 14px; }
.product-meta { margin: 18px 0; padding: 14px 16px; background: var(--bg); border: 1px solid #e8eef4; }
.product-meta div { display: flex; gap: 8px; font-size: 13.5px; padding: 3px 0; }
.product-meta dt { color: var(--muted); flex: none; }
.product-meta dd { margin: 0; color: var(--ink); }
.product-meta dd a { color: var(--primary); }
.product-cta { display: flex; gap: 10px; flex-wrap: wrap; }
.product-trust { display: flex; gap: 14px; margin-top: 14px; font-size: 12px; color: var(--muted); flex-wrap: wrap; }
.product-trust span::before { content: "· "; color: var(--primary); }
.detail-grid { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 30px; align-items: start; }
.detail-block { margin-bottom: 26px; }
.detail-block h2 { font-size: 18px; color: var(--primary); padding-bottom: 8px; border-bottom: 1px solid var(--line); margin-bottom: 14px; position: relative; }
.detail-block h2::after { content: ""; position: absolute; left: 0; bottom: -1px; width: 46px; height: 2px; background: var(--primary-2); }

/* ---------- 文章 ---------- */
.article-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 30px; align-items: start; }
.article { border: 1px solid var(--line); padding: 26px; background: #fff; }
.article-head { border-bottom: 1px solid var(--line); padding-bottom: 14px; margin-bottom: 18px; }
.article-head h1 { font-size: 24px; }
.article-meta { display: flex; gap: 18px; color: var(--muted); font-size: 12.5px; margin-top: 10px; flex-wrap: wrap; }
.article-content { font-size: 14.5px; color: #333; }
.prev-next { display: flex; justify-content: space-between; gap: 20px; border-top: 1px dashed var(--line); margin-top: 28px; padding-top: 14px; font-size: 13.5px; color: var(--muted); flex-wrap: wrap; }
.prev-next a { color: #444; }
.prev-next a:hover { color: var(--primary); }

/* 富文本 */
.rich { color: #333; overflow-wrap: break-word; }
.rich p { margin: 0 0 10px; }
.rich img { max-width: 100%; height: auto; }
.rich table { width: 100% !important; border-collapse: collapse; margin: 12px 0; font-size: 13px; }
.rich td, .rich th { border: 1px solid #dce3ea; padding: 7px 9px; word-break: break-word; }
.rich ul, .rich ol { padding-left: 22px; margin: 8px 0; list-style: disc; }
.rich ol { list-style: decimal; }
.rich h2, .rich h3 { margin: 18px 0 8px; color: var(--primary); }
.rich a { color: var(--primary); text-decoration: underline; }
.page-rich { max-width: 940px; margin: 0 auto; font-size: 14.5px; }
.page-contact-cta { max-width: 940px; margin: 34px auto 0; border-top: 1px dashed var(--line); padding-top: 18px; display: flex; justify-content: space-between; align-items: center; gap: 18px; flex-wrap: wrap; }

/* 搜索 */
.search-big { display: flex; gap: 8px; max-width: 620px; margin: 0 auto 18px; }
.search-big input { flex: 1; padding: 10px 14px; border: 1px solid var(--line); outline: none; font-size: 14px; }
.search-big input:focus { border-color: var(--primary); }

/* 联系我们 */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 24px; align-items: start; max-width: 940px; margin: 0 auto; }
.contact-card { border: 1px solid var(--line); background: #fff; padding: 24px 28px; }
.contact-card h2 { font-size: 20px; color: var(--primary); padding-bottom: 12px; border-bottom: 1px solid var(--line); margin-bottom: 12px; }
.contact-rows li { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 10px; padding: 10px 0; border-bottom: 1px dashed #eef2f6; font-size: 14px; }
.contact-rows li:last-child { border-bottom: 0; }
.contact-rows span { color: var(--muted); }
.contact-rows b { color: var(--ink); font-weight: 400; word-break: break-all; }
.contact-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.contact-side { display: flex; flex-direction: column; gap: 18px; }
.contact-side-box { border: 1px solid var(--line); background: var(--bg); padding: 18px; }
.contact-side-box h3 { font-size: 16px; color: var(--primary); margin-bottom: 8px; }
.contact-side-box p { font-size: 13.5px; color: #555; line-height: 1.8; margin-bottom: 12px; }
.contact-side-qr { text-align: center; }
.contact-side-qr img { width: 120px; height: 120px; background: #fff; padding: 4px; border: 1px solid var(--line); }
.contact-side-qr p { margin: 8px 0 0; font-size: 12.5px; color: var(--muted); }
.empty-block { text-align: center; padding: 44px 20px; border: 1px dashed var(--line); color: var(--muted); background: #fff; }

/* 网站地图 */
.map-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.map-block { border: 1px solid var(--line); padding: 18px; }
.map-block h2 { font-size: 18px; color: var(--primary); margin-bottom: 12px; }
.map-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 16px; }
.map-nav li { font-size: 13.5px; padding: 4px 0; }
.map-group { margin-bottom: 16px; }
.map-group h3 { font-size: 14px; margin-bottom: 6px; }
.map-group h3 a { color: var(--primary); }
.map-group ul li { font-size: 12.5px; color: #555; padding: 3px 0; display: flex; justify-content: space-between; gap: 10px; }
.map-group ul li span { color: var(--muted); font-size: 12px; flex: none; }

/* ---------- 页脚 ---------- */
.site-footer { background: #232a33; color: #9fb0c0; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr 1fr 1.6fr auto; gap: 28px; padding: 40px 10px 28px; }
.footer-col h3 { color: #fff; font-size: 16px; margin-bottom: 12px; }
.footer-col li { padding: 4px 0; font-size: 13.5px; }
.footer-col a { color: #9fb0c0; }
.footer-col a:hover { color: #5db3e0; }
.footer-contact p { font-size: 13.5px; margin-bottom: 6px; line-height: 1.7; }
.footer-contact span { color: #7d91a4; }
.footer-qr { display: flex; gap: 12px; }
.footer-qr div { text-align: center; }
.footer-qr img { width: 100px; height: 100px; background: #fff; padding: 4px; }
.footer-qr small { display: block; font-size: 12px; margin-top: 5px; color: #8ba0b3; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 14px 0; }
.footer-bottom .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 12.5px; }
.footer-bottom a { color: #9fb0c0; }
.footer-bottom a:hover { color: #5db3e0; }
.mobile-actions { display: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .nav-link { font-size: 15px; padding: 0 4px; }
  .brand img { width: 170px; height: 64px; }
  .brand-text strong { font-size: 22px; }
  .hotline-num { font-size: 22px; }
  .pro-grid { grid-template-columns: 250px minmax(0, 1fr); }
  .partner-grid { grid-template-columns: repeat(5, 1fr); }
}
@media (max-width: 980px) {
  .banner { height: 380px; }
  .pro-grid { grid-template-columns: 1fr; }
  .cat-menu { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0 18px; }
  .pro-tel { display: none; }
  .pro-list { grid-template-columns: repeat(3, 1fr); }
  .case-grid { grid-template-columns: 1fr 1fr; }
  .news-row { grid-template-columns: 1fr; }
  .about-block { grid-template-columns: 1fr; gap: 24px; }
  .with-side, .detail-grid, .article-wrap { grid-template-columns: 1fr; }
  .side { flex-direction: row; flex-wrap: wrap; }
  .side-box { flex: 1 1 250px; }
  .p-grid { grid-template-columns: repeat(3, 1fr); }
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-qr { grid-column: span 2; justify-content: flex-start; }
  .map-wrap { grid-template-columns: 1fr; }
  .partner-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 860px) {
  .nav-toggle {
    display: flex; flex-direction: column; justify-content: center; gap: 4px; width: 44px; height: 48px;
    background: transparent; border: 0; cursor: pointer; padding: 0 10px; margin-left: -8px;
  }
  .nav-toggle .bar { height: 2px; background: #fff; width: 100%; display: block; }
  .nav-list {
    display: none; position: absolute; left: 0; right: 0; top: 100%; background: #12658d;
    flex-direction: column; z-index: 50; box-shadow: 0 14px 26px rgba(0,0,0,.2); max-height: 78vh; overflow: auto;
  }
  .nav-list.is-open { display: block; }
  .nav-item { border-left: 0; border-bottom: 1px solid rgba(255,255,255,.12); }
  .nav-link { height: 46px; justify-content: space-between; padding: 0 16px; }
  .nav-sub { position: static; display: none; box-shadow: none; background: #0f5477; min-width: 0; padding: 4px 0; width: auto; transform: none; column-count: 1; }
  .nav-item.is-open .nav-sub { display: block; }
  .nav-sub a { padding-left: 32px; }
  .main-nav > .wrap { min-height: 48px; }
  .main-nav > .wrap { align-items: center; }
  .masthead { min-height: 84px; padding: 10px; }
  .brand-text small { display: none; }
  .hotline-mobile { font-size: 16px; }
  .hotline-label { display: none; }
  .topbar-welcome { display: none; }
  .topbar-inner { justify-content: center; }
  .topbar-links a:first-child { padding-left: 0; }
}
@media (max-width: 760px) {
  .banner { height: 240px; }
  .kwbar-inner { flex-direction: column; align-items: flex-start; gap: 2px; padding: 8px 10px; font-size: 13px; }
  .section { padding: 30px 0; }
  .section-title { margin-bottom: 18px; }
  .section-title h2 { font-size: 21px; }
  .cat-menu { grid-template-columns: 1fr 1fr; gap: 0 12px; }
  .pro-list { grid-template-columns: 1fr 1fr; gap: 10px; }
  .pro-card span { font-size: 12.5px; }
  .p-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .cat-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .cat-card { min-height: 140px; padding: 10px; }
  .case-grid { gap: 10px; }
  .partner-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .partner-item { height: 68px; }
  .page-head h1 { font-size: 21px; }
  .product-top { grid-template-columns: 1fr; gap: 20px; }
  .product-info h1 { font-size: 19px; }
  .article { padding: 16px; }
  .article-head h1 { font-size: 19px; }
  .pager { gap: 5px; }
  .pg-btn, .pg-num { height: 33px; min-width: 33px; padding: 0 9px; font-size: 13px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 20px; padding: 30px 10px 20px; }
  .footer-contact, .footer-qr { grid-column: span 2; }
  .map-nav { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 16px; }
  .contact-card { padding: 18px; }
  .contact-rows li { grid-template-columns: 84px minmax(0, 1fr); font-size: 13.5px; }
  .adv-item { grid-template-columns: 42px minmax(0, 1fr); gap: 12px; padding: 14px 16px; }
  .adv-no { width: 38px; height: 38px; font-size: 15px; line-height: 38px; }
  .adv-body h3 { font-size: 15.5px; }
  .mobile-actions {
    display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
    box-shadow: 0 -3px 14px rgba(10,25,45,.16);
  }
  .ma-btn { flex: 1; text-align: center; padding: 12px 0; font-weight: 600; font-size: 14px; }
  .ma-tel { background: #fff; color: var(--ink); border-top: 1px solid var(--line); }
  .ma-contact { background: var(--primary); color: #fff; }
  body { padding-bottom: 48px; }
  .cta-inner h2 { font-size: 18px; }
}
@media (max-width: 420px) {
  .brand img { width: 132px; height: 50px; }
  .brand-text strong { font-size: 17px; }
  .hotline-num { font-size: 16px; }
  .hotline-mobile { display: none; }
  .cat-menu { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-contact, .footer-qr { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}