/* ============================================================
   generic-29 · 通用型企业子站模板（GEO 规范版）
   类前缀：bh-   原型：A 分屏 Hero（Bauhaus 几何）
   配色：红 #D62828 / 蓝 #1D3557 / 黄 #F4A261 / 米白 #F7F4EC / 黑
   字体：几何无衬线、粗体；零渐变；小圆角 0~4px；硬阴影
   ============================================================ */

/* ---------- 设计令牌 ---------- */
.bh-body {
  --bh-red: #D62828;
  --bh-blue: #1D3557;
  --bh-yellow: #F4A261;
  --bh-cream: #F7F4EC;
  --bh-black: #111111;
  --bh-ink: #232323;
  --bh-muted: #5C5C5C;
  --bh-line: #111111;
  --bh-white: #FFFFFF;
  --bh-r: 4px;
  --bh-r-sm: 2px;
  --bh-shadow: 7px 7px 0 #111111;
  --bh-shadow-hover: 11px 11px 0 #111111;
  --bh-sans: "Futura", "Century Gothic", "Avenir Next", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
.bh-body {
  font-family: var(--bh-sans);
  color: var(--bh-ink);
  background: var(--bh-cream);
  line-height: 1.75;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}
.bh-body img { max-width: 100%; height: auto; border: 0; display: block; }
a { color: inherit; text-decoration: none; }
.bh-body ul { list-style: none; margin: 0; padding: 0; }
.bh-body h1, .bh-body h2, .bh-body h3 { font-weight: 800; letter-spacing: .01em; }
.bh-wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 22px; }
.bh-hide { display: none !important; }
.bh-noscroll { overflow: hidden; }

/* ---------- 通用区块 ---------- */
.bh-sec { padding: 76px 0; }
.bh-sec--cream { background: #FFFFFF; }
.bh-head2 { margin-bottom: 38px; border-left: 8px solid var(--bh-red); padding-left: 18px; }
.bh-eyebrow {
  display: inline-block; font-size: 12px; font-weight: 800; letter-spacing: 3px;
  text-transform: uppercase; color: var(--bh-blue); margin-bottom: 8px;
}
.bh-eyebrow::before {
  content: ""; display: inline-block; width: 9px; height: 9px; background: var(--bh-red);
  margin-right: 8px; vertical-align: 0;
}
.bh-title { font-size: 34px; line-height: 1.16; color: var(--bh-black); margin: 0 0 12px; }
.bh-lead { font-size: 15px; color: var(--bh-muted); margin: 0; max-width: 720px; }
.bh-center { text-align: center; margin-top: 30px; }
.bh-more { display: inline-block; color: var(--bh-red); font-weight: 800; font-size: 15px; border-bottom: 2px solid var(--bh-red); }
.bh-more:hover { background: var(--bh-red); color: #fff; }
.bh-rich { font-size: 15px; color: var(--bh-ink); line-height: 1.95; }
.bh-rich p { margin: 0 0 12px; }
.bh-rich img { border: 3px solid var(--bh-black); border-radius: 0; }
.bh-rich--box { background: #fff; border: 3px solid var(--bh-black); padding: 20px; box-shadow: var(--bh-shadow); }
.bh-title--sub { margin-top: 34px; font-size: 24px; }

/* ---------- 按钮 ---------- */
.bh-btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 28px; border-radius: 0; border: 3px solid var(--bh-black);
  font-size: 15px; font-weight: 800; letter-spacing: .04em; cursor: pointer;
  background: #fff; color: var(--bh-black); box-shadow: 5px 5px 0 var(--bh-black);
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease;
}
.bh-btn:hover { transform: translate(-2px, -2px); box-shadow: 8px 8px 0 var(--bh-black); }
.bh-btn--red { background: var(--bh-red); color: #fff; }
.bh-btn--line { background: transparent; }
.bh-btn--cream { background: var(--bh-cream); }

/* ---------- 顶栏 ---------- */
.bh-top { background: var(--bh-blue); color: #fff; font-size: 12px; letter-spacing: .06em; }
.bh-top__in {
  max-width: 1180px; margin: 0 auto; padding: 7px 22px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.bh-top__tel { color: var(--bh-yellow); font-weight: 800; white-space: nowrap; }
.bh-top__tel:hover { color: #fff; }

.bh-head { background: var(--bh-cream); border-bottom: 4px solid var(--bh-black); position: sticky; top: 0; z-index: 60; }
.bh-head__in { max-width: 1180px; margin: 0 auto; padding: 14px 22px; display: flex; align-items: center; gap: 22px; }
.bh-brand { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.bh-brand__mark { display: inline-flex; align-items: flex-end; gap: 3px; }
.bh-mark__sq { display: block; width: 12px; height: 12px; }
.bh-mark__sq--r { background: var(--bh-red); height: 22px; }
.bh-mark__sq--b { background: var(--bh-blue); height: 16px; }
.bh-mark__sq--y { background: var(--bh-yellow); height: 26px; }
.bh-brand__logo { display: block; }
.bh-brand .bh-brand__img { height: 44px; width: auto; }
.bh-brand__title { display: flex; flex-direction: column; padding-left: 12px; border-left: 3px solid var(--bh-black); }
.bh-brand__name { font-size: 22px; font-weight: 800; line-height: 1.2; color: var(--bh-black); letter-spacing: .02em; }
.bh-brand__meta { font-size: 12px; color: var(--bh-muted); }
.bh-brand__meta b { color: var(--bh-red); font-size: 13px; }

.bh-nav { margin-left: auto; display: flex; align-items: center; flex-wrap: wrap; gap: 4px; }
.bh-nav__item {
  display: inline-block; padding: 9px 14px; font-size: 14px; font-weight: 700;
  color: var(--bh-black); border: 2px solid transparent; border-radius: 0;
}
.bh-nav__item:hover { border-color: var(--bh-black); background: var(--bh-yellow); }
.bh-nav__on { background: var(--bh-red); color: #fff; border-color: var(--bh-black); }
.bh-burger {
  display: none; margin-left: auto; width: 44px; height: 40px; padding: 8px;
  background: var(--bh-yellow); border: 3px solid var(--bh-black); border-radius: 0; cursor: pointer;
}
.bh-burger span { display: block; height: 3px; background: var(--bh-black); margin: 4px 0; }

/* ---------- 移动抽屉 ---------- */
.bh-drawer {
  display: none; position: fixed; inset: 0 0 0 auto; width: 80%; max-width: 330px;
  background: var(--bh-cream); z-index: 200; border-left: 5px solid var(--bh-black);
  padding: 20px; overflow-y: auto;
}
.bh-drawer--open { display: block; }
.bh-drawer__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; border-bottom: 3px solid var(--bh-black); padding-bottom: 10px; }
.bh-drawer__name { font-weight: 800; color: var(--bh-black); }
.bh-drawer__close { border: 3px solid var(--bh-black); background: var(--bh-red); color: #fff; font-size: 22px; line-height: 1; width: 38px; height: 38px; cursor: pointer; }
.bh-drawer__item { display: block; padding: 12px 8px; border-bottom: 2px solid #d8d2c4; font-size: 15px; font-weight: 700; }
.bh-drawer__on { background: var(--bh-blue); color: #fff; }
.bh-drawer__tel { display: block; margin-top: 20px; text-align: center; padding: 13px; background: var(--bh-red); border: 3px solid var(--bh-black); box-shadow: 5px 5px 0 var(--bh-black); color: #fff; font-weight: 800; }

/* ---------- Hero ---------- */
.bh-hero { position: relative; overflow: hidden; background: var(--bh-cream); border-bottom: 4px solid var(--bh-black); }
.bh-hero::before {
  content: ""; position: absolute; top: 0; right: 0; width: 52%; height: 100%;
  background: var(--bh-yellow); clip-path: polygon(26% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}
.bh-hero::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 180px; height: 180px;
  background: var(--bh-yellow); clip-path: polygon(0 100%, 100% 100%, 0 0); pointer-events: none;
}
.bh-hero__circle {
  position: absolute; right: 42%; top: 44px; width: 110px; height: 110px; border-radius: 50%;
  background: var(--bh-red); pointer-events: none;
}
.bh-hero__triangle {
  position: absolute; left: 46%; bottom: 58px; width: 0; height: 0;
  border-left: 46px solid transparent; border-right: 46px solid transparent;
  border-bottom: 78px solid var(--bh-black); opacity: .9; pointer-events: none;
}
.bh-hero__in {
  max-width: 1180px; margin: 0 auto; padding: 66px 22px 74px;
  display: grid; grid-template-columns: 1.08fr .92fr; gap: 48px; align-items: center;
  position: relative; z-index: 2;
}
.bh-hero__badge {
  display: inline-block; background: var(--bh-black); color: var(--bh-yellow);
  font-size: 12px; font-weight: 800; letter-spacing: .14em; padding: 7px 14px;
  border-radius: 0; margin-bottom: 18px;
}
.bh-hero__h1 { font-size: 46px; line-height: 1.12; margin: 0 0 18px; color: var(--bh-black); }
.bh-hero__h1sub { display: block; margin-top: 10px; font-size: 23px; line-height: 1.4; letter-spacing: .01em; color: var(--bh-blue); }
.bh-hero__lead { font-size: 15px; color: var(--bh-ink); margin: 0 0 18px; max-width: 520px; }
.bh-hero__meta { display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: 13px; font-weight: 700; color: var(--bh-blue); margin: 0 0 26px; }
.bh-hero__meta a { border-bottom: 2px solid var(--bh-red); }
.bh-hero__btns { display: flex; gap: 16px; flex-wrap: wrap; }
.bh-hero .bh-btn--line { background: var(--bh-cream); }
.bh-hero__media { position: relative; }
.bh-hero__frame {
  position: relative; margin: 0; padding: 14px 14px 0; background: #fff;
  border: 4px solid var(--bh-black); border-radius: 0; box-shadow: 12px 12px 0 var(--bh-blue);
  transform: rotate(-1.2deg);
}
.bh-hero__frame img { width: 100%; height: auto; border: 2px solid var(--bh-black); }
.bh-hero__cap { display: block; padding: 10px 2px 12px; font-size: 12px; font-weight: 700; color: var(--bh-blue); letter-spacing: .04em; }

/* ---------- 数据条 ---------- */
.bh-strip { background: var(--bh-cream); border-bottom: 4px solid var(--bh-black); }
.bh-strip__in {
  max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr);
  border-left: 4px solid var(--bh-black); border-right: 4px solid var(--bh-black);
}
.bh-strip__item {
  background: var(--bh-red); color: #fff; padding: 26px 22px 28px;
  border-right: 4px solid var(--bh-black); min-height: 170px;
}
.bh-strip__item:last-child { border-right: 0; }
.bh-strip__item:nth-child(2) { background: var(--bh-blue); }
.bh-strip__item:nth-child(3) { background: var(--bh-yellow); color: var(--bh-black); }
.bh-strip__item:nth-child(4) { background: var(--bh-black); color: #fff; }
.bh-strip__in--wrap {
  grid-template-columns: repeat(3, 1fr); border: 4px solid var(--bh-black);
  box-shadow: var(--bh-shadow);
}
.bh-strip__in--wrap .bh-strip__item { border-bottom: 4px solid var(--bh-black); }
.bh-strip__in--wrap .bh-strip__item:nth-child(3n) { border-right: 0; }
.bh-strip__in--wrap .bh-strip__item:nth-child(n+4) { border-bottom: 0; }
.bh-strip__no { display: block; font-size: 34px; font-weight: 800; line-height: 1; opacity: .85; margin-bottom: 12px; }
.bh-strip__name { display: block; font-size: 18px; font-weight: 800; margin-bottom: 6px; }
.bh-strip__desc { display: block; font-size: 13px; line-height: 1.7; opacity: .92; }

/* ---------- 公司简介 ---------- */
.bh-about__in { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: start; }
.bh-about__text .bh-title { margin-bottom: 16px; }
.bh-about__full {
  font-size: 15px; color: var(--bh-ink); line-height: 1.95; max-height: 250px;
  overflow: hidden; position: relative;
  -webkit-mask-image: linear-gradient(180deg, #000 78%, transparent);
  mask-image: linear-gradient(180deg, #000 78%, transparent);
}
.bh-about__full--open { max-height: none; -webkit-mask-image: none; mask-image: none; }
.bh-about__full p { margin: 0 0 12px; }
.bh-about__full img { display: none; }
.bh-about__toggle { margin: 12px 0 16px; }
.bh-about__btn {
  display: inline-flex; align-items: center; gap: 6px; border: 0; background: none;
  color: var(--bh-red); font-size: 14px; font-weight: 800; cursor: pointer; padding: 4px 0;
  font-family: inherit;
}
.bh-about__media { position: relative; padding: 18px 0 0 18px; }
.bh-about__fig {
  position: relative; margin: 0; padding: 22px; background: #fff;
  border: 4px solid var(--bh-black); box-shadow: var(--bh-shadow); z-index: 1;
}
.bh-about__fig img { width: 100%; object-fit: contain; }
.bh-about__block { display: block; width: 100%; aspect-ratio: 1 / 1; background: var(--bh-yellow); border: 4px solid var(--bh-black); box-shadow: var(--bh-shadow); }
.bh-about__deco {
  position: absolute; left: 0; bottom: -22px; width: 120px; height: 120px;
  background: var(--bh-blue); border-radius: 50%; z-index: 0;
}

/* ---------- 产品 ---------- */
.bh-prod__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 26px; }
.bh-prod {
  position: relative; display: block; background: #fff; border: 4px solid var(--bh-black);
  border-radius: 0; box-shadow: 6px 6px 0 var(--bh-black);
  transition: transform .18s ease, box-shadow .18s ease;
}
.bh-prod:hover { transform: translate(-3px, -3px); box-shadow: 10px 10px 0 var(--bh-red); }
.bh-prod__img { display: block; aspect-ratio: 1 / 1; overflow: hidden; border-bottom: 4px solid var(--bh-black); background: var(--bh-cream); }
.bh-prod__img img { width: 100%; height: 100%; object-fit: cover; }
.bh-prod__no {
  position: absolute; top: 12px; right: 12px; background: var(--bh-red); color: #fff;
  font-size: 13px; font-weight: 800; padding: 3px 8px; border: 2px solid var(--bh-black);
}
.bh-prod__name { display: block; padding: 14px 16px; font-size: 16px; font-weight: 800; color: var(--bh-black); }
.bh-prod__name .bh-region { margin-right: 6px; }

/* ---------- 企业优势 ---------- */
.bh-adv__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.bh-adv__item {
  position: relative; background: #fff; border: 4px solid var(--bh-black);
  padding: 26px 22px 24px; box-shadow: 6px 6px 0 var(--bh-black);
  transition: transform .18s ease, box-shadow .18s ease;
}
.bh-adv__item:hover { transform: translate(-3px, -3px); box-shadow: 10px 10px 0 var(--bh-blue); }
.bh-adv__shape { display: block; width: 42px; height: 42px; margin-bottom: 18px; background: var(--bh-red); border-radius: 50%; }
.bh-adv__item:nth-child(3n+2) .bh-adv__shape { background: var(--bh-blue); border-radius: 0; }
.bh-adv__item:nth-child(3n) .bh-adv__shape { background: var(--bh-yellow); border-radius: 0; clip-path: polygon(50% 0, 100% 100%, 0 100%); }
.bh-adv__no {
  position: absolute; top: 20px; right: 20px; font-size: 30px; font-weight: 800;
  color: var(--bh-cream); -webkit-text-stroke: 1px var(--bh-black); line-height: 1;
}
.bh-adv__name { font-size: 19px; color: var(--bh-black); margin: 0 0 8px; }
.bh-adv__desc { font-size: 14px; color: var(--bh-muted); margin: 0; }

/* ---------- 独立广告图 ---------- */
.bh-brand-ad { background: var(--bh-blue); color: #fff; position: relative; overflow: hidden; }
.bh-brand-ad .bh-title { color: #fff; }
.bh-brand-ad .bh-lead { color: rgba(255, 255, 255, .78); }
.bh-brand-ad .bh-eyebrow { color: var(--bh-yellow); }
.bh-brand-ad .bh-eyebrow::before { background: var(--bh-yellow); }
.bh-brand-ad__in { position: relative; z-index: 1; }
.bh-brand-ad__head { margin-bottom: 30px; border-left-color: var(--bh-yellow); }
.bh-brand-ad__frame {
  margin: 0; padding: 18px; background: var(--bh-cream); border: 4px solid var(--bh-black);
  box-shadow: 14px 14px 0 var(--bh-red); max-width: 960px;
}
.bh-brand-ad__frame img { width: 100%; height: auto; border: 2px solid var(--bh-black); }
.bh-brand-ad__cap { display: block; padding: 12px 2px 0; font-size: 12px; font-weight: 800; color: var(--bh-black); letter-spacing: .1em; }
.bh-brand-ad__deco {
  position: absolute; right: -60px; top: 30px; width: 240px; height: 240px;
  border: 22px solid var(--bh-yellow); border-radius: 50%;
}

/* ---------- 承诺 / 应用 ---------- */
.bh-duo__in { display: grid; grid-template-columns: 1fr 1fr; gap: 46px; }
.bh-duo__col .bh-title { font-size: 28px; margin-bottom: 18px; }
.bh-promise { display: grid; grid-template-columns: 1fr; gap: 10px; }
.bh-promise__item { display: flex; gap: 12px; align-items: flex-start; background: var(--bh-cream); border: 3px solid var(--bh-black); padding: 13px 15px; font-size: 14px; font-weight: 600; }
.bh-promise__ico { flex: 0 0 auto; width: 16px; height: 16px; background: var(--bh-red); border: 2px solid var(--bh-black); margin-top: 3px; position: relative; }
.bh-promise__ico::after { content: ""; position: absolute; left: 3px; top: 0; width: 5px; height: 9px; border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg); }
.bh-apps { display: flex; flex-wrap: wrap; gap: 10px; }
.bh-apps__item { display: inline-block; padding: 9px 16px; background: #fff; border: 3px solid var(--bh-black); font-size: 14px; font-weight: 700; box-shadow: 4px 4px 0 var(--bh-yellow); }
.bh-apps__item:nth-child(even) { box-shadow: 4px 4px 0 var(--bh-blue); }

/* ---------- 新闻 ---------- */
.bh-news__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 22px; }
.bh-news__item {
  display: block; background: #fff; border: 4px solid var(--bh-black); padding: 20px;
  box-shadow: 5px 5px 0 var(--bh-black); transition: transform .18s ease, box-shadow .18s ease;
}
.bh-news__item:hover { transform: translate(-3px, -3px); box-shadow: 9px 9px 0 var(--bh-blue); }
.bh-news__date { display: inline-block; background: var(--bh-red); color: #fff; font-size: 12px; font-weight: 800; padding: 3px 9px; margin-bottom: 12px; letter-spacing: .06em; }
.bh-news__title { display: block; font-size: 16px; font-weight: 800; color: var(--bh-black); margin-bottom: 8px; }
.bh-news__desc { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; font-size: 13px; color: var(--bh-muted); }

/* ---------- FAQ ---------- */
.bh-faq__list { max-width: 920px; margin: 0 auto; }
.bh-faq__item { background: var(--bh-cream); border: 3px solid var(--bh-black); margin-bottom: 12px; padding: 0 18px; }
.bh-faq__item:nth-child(2n) { background: #fff; }
.bh-faq__item summary { cursor: pointer; padding: 16px 34px 16px 0; font-size: 15px; font-weight: 800; color: var(--bh-black); list-style: none; position: relative; }
.bh-faq__item summary::-webkit-details-marker { display: none; }
.bh-faq__item summary::after {
  content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  width: 24px; height: 24px; line-height: 20px; text-align: center;
  background: var(--bh-yellow); border: 2px solid var(--bh-black); font-size: 17px; font-weight: 800;
}
.bh-faq__item[open] summary::after { content: "–"; background: var(--bh-red); color: #fff; }
.bh-faq__item p { margin: 0 0 16px; font-size: 14px; color: var(--bh-muted); border-top: 2px solid #e2dccd; padding-top: 12px; }

/* ---------- 分站 ---------- */
.bh-city__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; }
.bh-city__item {
  display: block; background: #fff; border: 3px solid var(--bh-black); padding: 15px 16px;
  transition: transform .16s ease, box-shadow .16s ease;
}
.bh-city__item:hover { transform: translate(-2px, -2px); box-shadow: 5px 5px 0 var(--bh-red); }
.bh-city__no { display: block; font-size: 12px; font-weight: 800; color: var(--bh-red); letter-spacing: .1em; }
.bh-city__region { display: block; font-size: 18px; font-weight: 800; color: var(--bh-black); line-height: 1.4; }
.bh-city__site { display: block; font-size: 12px; color: var(--bh-muted); }
.bh-city__item--fold { display: none; }
.bh-city__grid.bh-city__grid--open .bh-city__item--fold { display: block; }
.bh-city__more {
  display: block; margin: 28px auto 0; padding: 10px 26px; cursor: pointer;
  background: var(--bh-yellow); border: 3px solid var(--bh-black); box-shadow: 4px 4px 0 var(--bh-black);
  font-family: inherit; font-size: 14px; font-weight: 800; color: var(--bh-black);
}

/* ---------- 关联企业 ---------- */
.bh-partners__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; }
.bh-partners__item {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: #fff; border: 3px solid var(--bh-black); padding: 12px 16px;
}
.bh-partners__item:hover { background: var(--bh-blue); color: #fff; }
.bh-partners__item:hover .bh-partners__region { color: var(--bh-yellow); }
.bh-partners__name { font-size: 14px; font-weight: 800; }
.bh-partners__region { font-size: 12px; color: var(--bh-muted); }

/* ---------- CTA ---------- */
.bh-cta { position: relative; overflow: hidden; background: var(--bh-red); border-top: 4px solid var(--bh-black); border-bottom: 4px solid var(--bh-black); }
.bh-cta__deco { position: absolute; right: 4%; top: -40px; width: 200px; height: 200px; background: var(--bh-yellow); transform: rotate(18deg); }
.bh-cta__in { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 26px; flex-wrap: wrap; padding: 46px 22px; }
.bh-cta__title { font-size: 30px; color: #fff; margin: 0 0 6px; }
.bh-cta__lead { margin: 0; color: rgba(255, 255, 255, .86); font-size: 15px; }
.bh-cta__tel { font-size: 34px; font-weight: 800; color: var(--bh-black); background: var(--bh-yellow); border: 3px solid var(--bh-black); padding: 6px 18px; box-shadow: 5px 5px 0 var(--bh-black); white-space: nowrap; }

/* ---------- 页脚 ---------- */
.bh-foot { background: var(--bh-blue); color: rgba(255, 255, 255, .8); font-size: 13px; }
.bh-foot__ticks { display: grid; grid-template-columns: repeat(4, 1fr); height: 8px; }
.bh-foot__ticks i:nth-child(1) { background: var(--bh-red); }
.bh-foot__ticks i:nth-child(2) { background: var(--bh-yellow); }
.bh-foot__ticks i:nth-child(3) { background: var(--bh-cream); }
.bh-foot__ticks i:nth-child(4) { background: var(--bh-black); }
.bh-foot__main { display: grid; grid-template-columns: 1.3fr .7fr 1fr; gap: 34px; max-width: 1180px; margin: 0 auto; padding: 40px 22px 28px; }
.bh-foot__name { font-size: 21px; font-weight: 800; color: #fff; margin-bottom: 8px; }
.bh-foot__desc { margin: 0 0 10px; }
.bh-foot__tel a { display: inline-block; color: var(--bh-yellow); font-size: 21px; font-weight: 800; border-bottom: 2px solid var(--bh-yellow); }
.bh-foot__tt { color: #fff; font-weight: 800; margin-bottom: 10px; letter-spacing: .08em; }
.bh-foot__nav a { display: block; padding: 4px 0; color: rgba(255, 255, 255, .8); }
.bh-foot__nav a:hover { color: var(--bh-yellow); }
.bh-foot__info p { margin: 0 0 6px; }
.bh-foot__info a { color: var(--bh-yellow); }
.bh-foot__city { max-width: 1180px; margin: 0 auto; padding: 16px 22px; border-top: 2px solid rgba(255, 255, 255, .22); }
.bh-foot__citytt { color: #fff; font-weight: 800; margin-right: 8px; }
.bh-foot__citylist { display: inline; }
.bh-foot__cityitem { display: inline-block; margin: 0 14px 6px 0; color: rgba(255, 255, 255, .75); }
.bh-foot__cityitem:hover { color: var(--bh-yellow); }
.bh-foot__cityitem--fold { display: none; }
.bh-foot__citylist--open .bh-foot__cityitem--fold { display: inline-block; }
.bh-foot__morebtn { border: 2px solid rgba(255, 255, 255, .5); background: none; color: #fff; padding: 3px 12px; cursor: pointer; font-size: 12px; font-family: inherit; }
.bh-foot__nap { max-width: 1180px; margin: 0 auto; padding: 14px 22px; border-top: 2px solid rgba(255, 255, 255, .22); color: rgba(255, 255, 255, .56); font-size: 12px; }
.bh-foot__nap p { margin: 0 0 4px; }
.bh-foot__copy { max-width: 1180px; margin: 0 auto; padding: 16px 22px 26px; border-top: 2px solid rgba(255, 255, 255, .22); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; color: rgba(255, 255, 255, .5); }
.bh-foot__copy a { color: rgba(255, 255, 255, .65); }
.bh-foot__copy a:hover { color: var(--bh-yellow); }

/* ---------- 移动拨号栏 ---------- */
.bh-dial { display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 90; padding: 8px 12px; background: var(--bh-cream); border-top: 3px solid var(--bh-black); }
.bh-dial__tel { display: block; text-align: center; padding: 12px; background: var(--bh-red); border: 3px solid var(--bh-black); color: #fff; font-weight: 800; }

/* ---------- 内页页头 ---------- */
.bh-page-hero { position: relative; overflow: hidden; background: var(--bh-blue); color: #fff; padding: 50px 0 54px; border-bottom: 4px solid var(--bh-black); }
.bh-page-hero::before { content: ""; position: absolute; right: 0; top: 0; width: 230px; height: 100%; background: var(--bh-red); clip-path: polygon(34% 0, 100% 0, 100% 100%, 0 100%); }
.bh-page-hero::after { content: ""; position: absolute; left: 42%; bottom: -30px; width: 84px; height: 84px; background: var(--bh-yellow); border-radius: 50%; }
.bh-page-hero__deco { position: absolute; left: 22px; top: 18px; width: 14px; height: 14px; background: var(--bh-yellow); }
.bh-page-hero .bh-wrap { position: relative; z-index: 1; }
.bh-crumb { font-size: 12px; font-weight: 700; color: rgba(255, 255, 255, .78); margin: 0 0 10px; letter-spacing: .04em; }
.bh-crumb a { color: #fff; border-bottom: 1px solid var(--bh-yellow); }
.bh-page-h1 { font-size: 36px; margin: 0; color: #fff; line-height: 1.2; }
.bh-crumb--dark { color: var(--bh-muted); margin: 0 0 20px; }
.bh-crumb--dark a { color: var(--bh-blue); border-bottom: 1px solid var(--bh-red); }

/* ---------- 列表 ---------- */
.bh-list { display: grid; gap: 16px; }
.bh-list__item {
  display: flex; gap: 20px; background: #fff; border: 3px solid var(--bh-black);
  padding: 14px; transition: transform .16s ease, box-shadow .16s ease;
}
.bh-list__item:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--bh-blue); }
.bh-list__thumb { flex: 0 0 170px; height: 120px; overflow: hidden; border: 2px solid var(--bh-black); background: var(--bh-cream); }
.bh-list__thumb img { width: 100%; height: 100%; object-fit: cover; }
.bh-list__body { flex: 1 1 auto; min-width: 0; }
.bh-list__no { display: block; font-size: 12px; font-weight: 800; color: var(--bh-red); letter-spacing: .12em; }
.bh-list__title { display: block; font-size: 17px; font-weight: 800; color: var(--bh-black); margin: 2px 0 6px; }
.bh-list__item:hover .bh-list__title { color: var(--bh-blue); }
.bh-region { display: inline-block; font-style: normal; font-size: 12px; font-weight: 800; color: #fff; background: var(--bh-red); padding: 0 7px; margin-right: 7px; vertical-align: 2px; }
.bh-list__desc { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; font-size: 13px; color: var(--bh-muted); }
.bh-list__date { display: block; margin-top: 8px; font-size: 12px; color: #8c8c8c; letter-spacing: .06em; }

/* 分页（SubsiteRender::pagesHtml 固定 .pagination） */
.pagination { margin: 30px 0 0; text-align: center; font-size: 14px; }
.pagination a, .pagination span { display: inline-block; min-width: 36px; padding: 6px 10px; margin: 0 3px; border: 2px solid var(--bh-black); color: var(--bh-ink); background: #fff; }
.pagination a:hover { background: var(--bh-yellow); }
.pagination .current { background: var(--bh-red); border-color: var(--bh-black); color: #fff; }

/* ---------- 新闻详情 ---------- */
.bh-newsdetail { display: grid; grid-template-columns: 1fr 330px; gap: 30px; align-items: start; }
.bh-post { background: #fff; border: 3px solid var(--bh-black); padding: 26px; }
.bh-post__meta { font-size: 12px; font-weight: 700; color: var(--bh-muted); margin-bottom: 14px; letter-spacing: .06em; }
.bh-post__cover { width: 100%; border: 3px solid var(--bh-black); margin-bottom: 18px; }
.bh-post__body { font-size: 15px; color: var(--bh-ink); line-height: 1.95; }
.bh-post__body p { margin: 0 0 14px; }
.bh-post__body img { border: 2px solid var(--bh-black); }
.bh-post__back { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.bh-side { background: #fff; border: 3px solid var(--bh-black); padding: 20px; box-shadow: 5px 5px 0 var(--bh-yellow); }
.bh-side__tt { font-size: 16px; font-weight: 800; color: var(--bh-black); margin: 0 0 14px; padding-bottom: 10px; border-bottom: 3px solid var(--bh-red); }
.bh-side__item { display: block; padding: 10px 0; border-bottom: 2px solid #e4ded0; }
.bh-side__title { display: block; font-size: 14px; color: var(--bh-ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bh-side__item:hover .bh-side__title { color: var(--bh-red); }
.bh-side__date { display: block; font-size: 12px; color: #8c8c8c; }
.bh-side__empty { font-size: 13px; color: var(--bh-muted); }

/* ---------- 产品详情 ---------- */
.bh-prodpage { padding-top: 40px; }
.bh-prodhero { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.bh-prodhero__media { position: relative; background: #fff; border: 4px solid var(--bh-black); padding: 16px; box-shadow: 10px 10px 0 var(--bh-blue); }
.bh-prodhero__media img { width: 100%; border: 2px solid var(--bh-black); }
.bh-prodhero__deco { position: absolute; right: -18px; bottom: -18px; width: 74px; height: 74px; background: var(--bh-yellow); z-index: -1; }
.bh-prodhero__kicker { display: inline-block; font-size: 12px; font-weight: 800; letter-spacing: .14em; color: #fff; background: var(--bh-red); padding: 4px 10px; margin-bottom: 12px; }
.bh-prodhero__h1 { font-size: 31px; line-height: 1.28; color: var(--bh-black); margin: 0 0 12px; }
.bh-prodhero__desc { font-size: 15px; color: var(--bh-muted); margin: 0 0 20px; }
.bh-info { border-top: 3px solid var(--bh-black); margin-bottom: 22px; }
.bh-info__row { display: flex; gap: 12px; padding: 11px 0; border-bottom: 2px solid #ded8ca; font-size: 14px; }
.bh-info__k { flex: 0 0 86px; color: var(--bh-muted); font-weight: 700; }
.bh-info__v { flex: 1 1 auto; color: var(--bh-ink); }
.bh-info__v a { color: var(--bh-red); font-weight: 800; }
.bh-prodhero__btns { display: flex; gap: 14px; flex-wrap: wrap; }
.bh-prodshow { display: grid; grid-template-columns: 1fr 330px; gap: 30px; align-items: start; margin-top: 38px; }
.bh-panel { background: #fff; border: 3px solid var(--bh-black); padding: 18px; margin-bottom: 16px; }
.bh-panel__tt { font-size: 15px; font-weight: 800; color: var(--bh-black); margin: 0 0 10px; padding-bottom: 8px; border-bottom: 3px solid var(--bh-yellow); }
.bh-panel p { margin: 0 0 6px; font-size: 13px; color: var(--bh-muted); }
.bh-panel__list li { font-size: 13px; color: var(--bh-muted); padding: 6px 0; border-bottom: 2px solid #eee8dc; }
.bh-panel__list li:last-child { border-bottom: 0; }
.bh-panel__list b { color: var(--bh-ink); }
.bh-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.bh-chip { display: inline-block; padding: 4px 11px; background: var(--bh-cream); border: 2px solid var(--bh-black); font-size: 12px; font-weight: 700; color: var(--bh-blue); }

/* ---------- 联系页 ---------- */
.bh-contact { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.bh-card { background: #fff; border: 4px solid var(--bh-black); padding: 26px; box-shadow: var(--bh-shadow); }
.bh-card__tt { font-size: 19px; font-weight: 800; color: var(--bh-black); margin: 0 0 14px; padding-bottom: 10px; border-bottom: 3px solid var(--bh-red); }
.bh-card__row { display: flex; gap: 12px; padding: 10px 0; border-bottom: 2px solid #e4ded0; font-size: 15px; }
.bh-card__row:last-child { border-bottom: 0; }
.bh-card__k { flex: 0 0 84px; color: var(--bh-muted); font-weight: 700; }
.bh-card__row a { color: var(--bh-red); font-weight: 700; }
.bh-steps { margin: 8px 0 0; padding: 0 0 0 22px; list-style: decimal; font-size: 15px; color: var(--bh-ink); }
.bh-steps li { margin: 8px 0; padding-left: 4px; }

/* ---------- 辅助 ---------- */
.bh-top__welcome { opacity: .9; }
.bh-brand__logo, .bh-drawer__nav, .bh-main { display: block; }
.bh-foot__brand { min-width: 0; }
.bh-hero__text { position: relative; z-index: 2; min-width: 0; }
.bh-prodhero__info { min-width: 0; }
.bh-about__txt { letter-spacing: .04em; }
.bh-about__arr { font-size: 11px; }
.bh-moretxt { letter-spacing: .06em; }
.bh-empty { color: var(--bh-muted); font-size: 14px; padding: 30px 0; }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .bh-nav { display: none; }
  .bh-burger { display: block; }
  .bh-hero__in { grid-template-columns: 1fr; padding: 46px 22px 54px; gap: 34px; }
  .bh-hero__h1 { font-size: 36px; }
  .bh-hero__h1sub { font-size: 19px; }
  .bh-hero::before, .bh-hero::after, .bh-hero__circle, .bh-hero__triangle { display: none; }
  .bh-hero__frame { transform: none; }
  .bh-about__in, .bh-contact, .bh-newsdetail, .bh-prodshow, .bh-prodhero { grid-template-columns: 1fr; gap: 28px; }
  .bh-adv__grid { grid-template-columns: repeat(2, 1fr); }
  .bh-strip__in { grid-template-columns: repeat(2, 1fr); }
  .bh-strip__in--wrap { grid-template-columns: repeat(2, 1fr); }
  .bh-strip__in--wrap .bh-strip__item:nth-child(3n) { border-right: 4px solid var(--bh-black); }
  .bh-strip__in--wrap .bh-strip__item:nth-child(2n) { border-right: 0; }
  .bh-strip__in--wrap .bh-strip__item:nth-child(n+4) { border-bottom: 4px solid var(--bh-black); }
  .bh-strip__in--wrap .bh-strip__item:nth-last-child(-n+2) { border-bottom: 0; }
  .bh-strip__in--wrap .bh-strip__item:last-child { border-bottom: 0; }
  .bh-foot__main { grid-template-columns: 1fr; gap: 22px; }
  .bh-sec { padding: 54px 0; }
  .bh-title { font-size: 27px; }
  .bh-duo__in { grid-template-columns: 1fr; gap: 34px; }
}
@media (max-width: 640px) {
  .bh-top__in { font-size: 11px; }
  .bh-brand__mark { display: none; }
  .bh-brand .bh-brand__img { height: 34px; }
  .bh-brand__name { font-size: 17px; }
  .bh-brand__meta { font-size: 11px; }
  .bh-head__in { padding: 10px 16px; gap: 12px; }
  .bh-wrap { padding: 0 16px; }
  .bh-hero__h1 { font-size: 28px; }
  .bh-hero__h1sub { font-size: 16px; }
  .bh-hero__badge { font-size: 11px; }
  .bh-strip__in, .bh-strip__in--wrap { grid-template-columns: 1fr; }
  .bh-strip__item { border-right: 0 !important; border-bottom: 4px solid var(--bh-black); min-height: 0; padding: 20px; }
  .bh-strip__in--wrap .bh-strip__item:last-child { border-bottom: 0; }
  .bh-strip__in--wrap .bh-strip__item:nth-last-child(-n+2) { border-bottom: 4px solid var(--bh-black); }
  .bh-prod__grid, .bh-adv__grid, .bh-news__grid, .bh-city__grid, .bh-partners__grid { grid-template-columns: 1fr; }
  .bh-list__thumb { flex: 0 0 96px; height: 80px; }
  .bh-list__title { font-size: 15px; }
  .bh-brand-ad__frame { box-shadow: 7px 7px 0 var(--bh-red); }
  .bh-cta__tel { font-size: 24px; }
  .bh-page-h1 { font-size: 25px; }
  .bh-page-hero { padding: 36px 0 40px; }
  .bh-hero__frame { box-shadow: 7px 7px 0 var(--bh-blue); }
  .bh-dial { display: block; }
  .bh-body { padding-bottom: 70px; }
  .bh-post { padding: 18px; }
  .bh-prodhero__h1 { font-size: 25px; }
  .bh-about__deco { width: 80px; height: 80px; }
}