/* ============================================================
   万商云集 · 巴中站 独立子站主题样式（红色巴中·赤土 + 米白）
   类前缀固定 bz-，所有样式集中于此，零内联 style
   ============================================================ */
:root {
  --ink: #2A1A18;
  --primary: #B0432F;
  --primary-2: #C85A40;
  --accent: #E8DCC8;
  --bg: #F7F0EB;
  --bg-alt: #EFE5DD;
  --line: #E2D2C6;
  --heading: #2E1E18;
  --muted: #756157;
  --radius: 12px;
  --shadow: 0 12px 28px rgba(42, 26, 24, .10);
  --gradient: linear-gradient(135deg, #B0432F, #E8DCC8);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
}
body.bz-noscroll { overflow: hidden; }
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-2); }
h1, h2, h3, h4 { color: var(--heading); line-height: 1.3; margin: 0 0 .5em; }
p { margin: 0 0 1em; }

/* 布局容器 */
.bz-header, .bz-main, .bz-footer { width: 100%; }
.bz-header__inner, .bz-sec__inner, .bz-footer__inner, .bz-pagehead__inner {
  max-width: 1180px; margin: 0 auto; padding: 0 20px;
}

/* 按钮 */
.bz-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4em;
  padding: 12px 26px; border-radius: var(--radius); font-weight: 700;
  border: 2px solid transparent; cursor: pointer; transition: transform .15s, box-shadow .15s, background .15s;
}
.bz-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.bz-btn--primary { background: var(--primary); color: #fff; }
.bz-btn--primary:hover { background: var(--primary-2); color: #fff; }
.bz-btn--light { background: #fff; color: var(--primary); }
.bz-btn--ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.7); }
.bz-btn--ghost:hover { background: rgba(255,255,255,.12); color: #fff; }
.bz-btn--outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.bz-btn--outline:hover { background: var(--primary); color: #fff; }
.bz-btn--lg { padding: 15px 34px; font-size: 17px; }

/* 顶栏 */
.bz-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(42,26,24,.96);
  border-bottom: 3px solid var(--primary-2);
}
.bz-header__inner { display: flex; align-items: center; gap: 18px; height: 68px; }
.bz-brand { display: flex; align-items: baseline; gap: 10px; color: #fff; flex-shrink: 0; }
.bz-brand__logo img { height: 34px; width: auto; border-radius: 6px; }
.bz-brand__name { font-weight: 800; font-size: 18px; color: #fff; }
.bz-brand__tag { font-size: 13px; color: var(--accent); white-space: nowrap; }
.bz-brand__tag b { color: #fff; }
.bz-nav { display: flex; gap: 6px; margin-left: auto; }
.bz-nav__link {
  color: #f3e7df; padding: 8px 14px; border-radius: 8px; font-weight: 600; font-size: 15px;
}
.bz-nav__link:hover { background: rgba(200,90,64,.35); color: #fff; }
.bz-nav__link--on { background: var(--primary-2); color: #fff; }
.bz-header__tel { color: #fff; font-weight: 800; margin-left: 8px; white-space: nowrap; }
.bz-header__tel:hover { color: var(--accent); }
.bz-burger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; margin-left: auto; }
.bz-burger span { width: 26px; height: 3px; background: #fff; border-radius: 2px; }

/* 抽屉 */
.bz-drawer {
  position: fixed; top: 0; right: 0; height: 100%; width: 80%; max-width: 340px;
  background: #2A1A18; z-index: 80; transform: translateX(100%); transition: transform .28s ease;
  display: flex; flex-direction: column; padding: 20px;
}
.bz-drawer.is-open { transform: translateX(0); }
.bz-drawer__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.bz-drawer__title { color: #fff; font-weight: 800; }
.bz-drawer__close { background: none; border: 0; color: #fff; font-size: 28px; cursor: pointer; line-height: 1; }
.bz-drawer__nav { display: flex; flex-direction: column; gap: 4px; }
.bz-drawer__link { color: #f3e7df; padding: 13px 12px; border-radius: 8px; font-weight: 600; }
.bz-drawer__link:hover, .bz-drawer__link--on { background: var(--primary-2); color: #fff; }
.bz-drawer__tel { margin-top: auto; background: var(--primary); color: #fff; text-align: center; padding: 13px; border-radius: 8px; font-weight: 800; }
.bz-scrim { position: fixed; inset: 0; background: rgba(42,26,24,.55); z-index: 70; opacity: 0; visibility: hidden; transition: opacity .28s; }
.bz-scrim.is-open { opacity: 1; visibility: visible; }

/* Hero 红土 */
.bz-hero { position: relative; background: var(--gradient); color: #fff; overflow: hidden; }
.bz-hero::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 10px;
  background: repeating-linear-gradient(90deg, var(--primary) 0 36px, #7d2c20 36px 72px);
}
.bz-hero__inner { max-width: 1180px; margin: 0 auto; padding: 72px 20px 60px; display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.bz-hero__badge { display: inline-block; background: rgba(255,255,255,.18); color: #fff; padding: 6px 16px; border-radius: 999px; font-weight: 700; font-size: 14px; margin-bottom: 18px; }
.bz-hero__title { color: #fff; font-size: clamp(28px, 4.4vw, 46px); font-weight: 900; letter-spacing: .5px; margin-bottom: 16px; }
.bz-hero__title em { color: var(--accent); font-style: normal; }
.bz-hero__sub { color: #fbeee6; font-size: 17px; max-width: 36em; }
.bz-hero__meta { color: var(--accent); font-weight: 700; }
.bz-hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 22px; }
.bz-hero__art { background: #fff; border-radius: var(--radius); padding: 12px; box-shadow: var(--shadow); }
.bz-hero__art img { border-radius: 8px; width: 100%; }

/* 区块通用 */
.bz-sec { padding: 64px 0; }
.bz-sec--alt { background: var(--bg-alt); }
.bz-sec__inner { }
.bz-sec__head { text-align: center; max-width: 760px; margin: 0 auto 40px; }
.bz-sec__eyebrow { display: inline-block; color: var(--primary); font-weight: 800; letter-spacing: 2px; font-size: 13px; text-transform: uppercase; margin-bottom: 10px; }
.bz-sec__title { font-size: clamp(24px, 3vw, 34px); font-weight: 800; }
.bz-sec__lead { color: var(--muted); font-size: 16px; }
.bz-sec__more { display: inline-block; margin-top: 14px; font-weight: 700; }
.bz-sec__phone { display: inline-block; font-size: 30px; font-weight: 900; color: var(--primary); }

/* 客户引用条 */
.bz-quote { background: var(--primary); color: #fff; padding: 36px 0; }
.bz-quote__inner { max-width: 1180px; margin: 0 auto; padding: 0 20px; display: flex; gap: 24px; align-items: center; flex-wrap: wrap; justify-content: center; text-align: center; }
.bz-quote__text { font-size: clamp(18px, 2.4vw, 24px); font-weight: 800; }
.bz-quote__text span { color: var(--accent); }
.bz-quote__src { color: #fbeee6; font-size: 14px; }

/* 卡片 */
.bz-card { background: #fff; border: 3px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.bz-grid { display: grid; gap: 22px; grid-template-columns: repeat(3, 1fr); }
.bz-grid--4 { grid-template-columns: repeat(4, 1fr); }
.bz-card__icon svg { width: 38px; height: 38px; fill: none; stroke: var(--primary); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.bz-card__title { font-size: 19px; font-weight: 800; margin: 12px 0 8px; }
.bz-card__desc { color: var(--muted); font-size: 15px; margin: 0; }

/* 关于（折叠展开） */
.bz-about { display: grid; grid-template-columns: 1.3fr .7fr; gap: 40px; align-items: start; }
.bz-about__full { color: var(--ink); font-size: 16px; max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.bz-about__full.is-open { max-height: 4000px; }
.bz-about__toggle { margin: 14px 0; }
.bz-about__btn { background: var(--bg-alt); border: 2px solid var(--line); color: var(--primary); font-weight: 700; padding: 10px 20px; border-radius: 999px; cursor: pointer; }
.bz-about__btn:hover { background: var(--accent); }
.bz-about__media img { border-radius: var(--radius); box-shadow: var(--shadow); }

/* 产品卡片墙（粗边框） */
.bz-wall { display: grid; gap: 22px; grid-template-columns: repeat(4, 1fr); }
.bz-prod { background: #fff; border: 3px solid var(--ink); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: transform .15s, box-shadow .15s; }
.bz-prod:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.bz-prod__media { aspect-ratio: 4/3; background: var(--bg-alt); }
.bz-prod__media img { width: 100%; height: 100%; object-fit: cover; }
.bz-prod__body { padding: 16px 16px 18px; display: flex; flex-direction: column; gap: 6px; }
.bz-prod__title { font-size: 16px; font-weight: 800; margin: 0; }
.bz-prod__title a { color: var(--heading); }
.bz-prod__desc { color: var(--muted); font-size: 14px; margin: 0; flex: 1; }
.bz-prod__more { font-weight: 700; font-size: 14px; }

/* FAQ */
.bz-faq { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.bz-faq__item { background: #fff; border: 2px solid var(--line); border-radius: var(--radius); padding: 4px 18px; }
.bz-faq__item summary { cursor: pointer; font-weight: 800; padding: 14px 0; list-style: none; position: relative; }
.bz-faq__item summary::-webkit-details-marker { display: none; }
.bz-faq__item summary::after { content: "+"; position: absolute; right: 0; top: 12px; font-size: 22px; color: var(--primary); }
.bz-faq__item[open] summary::after { content: "−"; }
.bz-faq__body { color: var(--muted); padding: 0 0 16px; }

/* CTA 区 */
.bz-cta { background: var(--primary); color: #fff; text-align: center; padding: 60px 20px; }
.bz-cta__title { color: #fff; font-size: clamp(24px, 3vw, 34px); }
.bz-cta__lead { color: #fbeee6; }
.bz-cta__phone { display: inline-block; font-size: 34px; font-weight: 900; color: #fff; margin: 8px 0 20px; }
.bz-cta__phone:hover { color: var(--accent); }
.bz-cta__row { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* 分站互联 */
.bz-citylinks { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.bz-citylinks__item { background: #fff; border: 2px solid var(--line); border-radius: var(--radius); padding: 14px 20px; text-align: center; min-width: 150px; }
.bz-citylinks__item--cur { border-color: var(--primary); background: var(--accent); }
.bz-citylinks__region { display: block; font-weight: 800; color: var(--heading); }
.bz-citylinks__site { display: block; font-size: 13px; color: var(--muted); }

/* 列表页 */
.bz-pagehead { background: var(--gradient); color: #fff; padding: 56px 0 44px; text-align: center; }
.bz-pagehead__eyebrow { display: inline-block; color: var(--accent); font-weight: 800; letter-spacing: 2px; font-size: 13px; }
.bz-pagehead__title { color: #fff; font-size: clamp(26px, 3.4vw, 38px); font-weight: 900; }
.bz-pagehead__lead { color: #fbeee6; max-width: 40em; margin: 8px auto 0; }
.bz-list { display: flex; flex-direction: column; gap: 20px; }
.bz-list__item { display: grid; grid-template-columns: 220px 1fr; gap: 22px; background: #fff; border: 2px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.bz-list__media img { width: 100%; height: 150px; object-fit: cover; border-radius: 8px; }
.bz-list__title { font-size: 19px; margin: 0 0 6px; }
.bz-list__title a { color: var(--heading); }
.bz-list__meta { color: var(--muted); font-size: 13px; margin: 0 0 8px; }
.bz-list__desc { color: var(--muted); margin: 0 0 8px; }
.bz-list__more { font-weight: 700; font-size: 14px; }
.bz-empty { text-align: center; color: var(--muted); padding: 40px 0; }
.bz-pager { margin-top: 30px; text-align: center; color: var(--muted); }
.bz-pager a, .bz-pager span { display: inline-block; margin: 0 4px; padding: 6px 12px; border: 1px solid var(--line); border-radius: 6px; }
.bz-pager a:hover { background: var(--accent); }

/* 详情双栏 */
.bz-columns { display: grid; grid-template-columns: 1fr 320px; gap: 36px; align-items: start; }
.bz-rail__title, .bz-post__title { font-size: 24px; font-weight: 800; }
.bz-rail { background: #fff; border: 2px solid var(--line); border-radius: var(--radius); padding: 20px; }
.bz-rail__item { padding: 10px 0; border-bottom: 1px solid var(--line); }
.bz-rail__item:last-child { border-bottom: 0; }
.bz-rail__item a { color: var(--heading); font-weight: 600; }
.bz-rail__date { display: block; font-size: 12px; color: var(--muted); }
.bz-post { background: #fff; border: 2px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.bz-post__meta { color: var(--muted); font-size: 14px; margin-bottom: 16px; }
.bz-post__body { color: var(--ink); }
.bz-post__back { margin-top: 24px; }

/* 产品详情 */
.bz-prodhero { background: var(--bg-alt); padding: 56px 0; }
.bz-prodhero__inner { display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: center; }
.bz-prodhero__media { background: #fff; border: 3px solid var(--ink); border-radius: var(--radius); padding: 12px; box-shadow: var(--shadow); }
.bz-prodhero__media img { border-radius: 8px; width: 100%; }
.bz-prodhero__kicker { display: inline-block; background: var(--primary); color: #fff; padding: 5px 14px; border-radius: 999px; font-weight: 700; font-size: 13px; }
.bz-prodhero__title { font-size: clamp(24px, 3vw, 34px); font-weight: 900; margin: 14px 0; }
.bz-prodhero__desc { color: var(--muted); margin-bottom: 18px; }
.bz-prodhero__list { list-style: none; padding: 0; margin: 0 0 20px; display: grid; gap: 8px; }
.bz-prodhero__list li { display: flex; gap: 10px; padding: 10px 14px; background: #fff; border: 1px solid var(--line); border-radius: 8px; }
.bz-prodhero__list b { color: var(--primary); }
.bz-prodhero__cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* 表单 */
.bz-form { display: grid; gap: 16px; max-width: 560px; }
.bz-form__row { display: flex; flex-direction: column; gap: 6px; }
.bz-form__label { font-weight: 700; }
.bz-form__input, .bz-form__textarea { padding: 12px 14px; border: 2px solid var(--line); border-radius: 8px; font: inherit; background: #fff; }
.bz-form__textarea { min-height: 130px; }
.bz-form__submit { justify-self: start; }

/* 页脚 */
.bz-footer { background: #2A1A18; color: #e9d9d0; padding: 40px 0 30px; }
.bz-footer__nap { display: flex; flex-wrap: wrap; gap: 6px 28px; justify-content: center; margin-bottom: 18px; }
.bz-footer__napitem { margin: 0; color: var(--accent); font-size: 14px; }
.bz-sitelinks { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 20px; }
.bz-sitelinks__item { color: #f3e7df; background: rgba(255,255,255,.06); padding: 7px 14px; border-radius: 999px; font-size: 13px; }
.bz-sitelinks__item:hover { background: var(--primary-2); color: #fff; }
.bz-footer__bar { border-top: 1px solid rgba(255,255,255,.12); padding-top: 18px; display: flex; flex-wrap: wrap; gap: 10px 26px; justify-content: space-between; align-items: center; }
.bz-footer__copy { margin: 0; color: #c9b6ad; font-size: 13px; }
.bz-footer__links { margin: 0; display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.bz-footer__links a { color: #f3e7df; font-size: 13px; }
.bz-footer__tel { font-weight: 800; color: var(--accent) !important; }

/* 响应式 */
@media (max-width: 980px) {
  .bz-hero__inner, .bz-about, .bz-prodhero__inner, .bz-columns { grid-template-columns: 1fr; }
  .bz-grid, .bz-grid--4, .bz-wall { grid-template-columns: repeat(2, 1fr); }
  .bz-list__item { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .bz-nav, .bz-header__tel { display: none; }
  .bz-burger { display: flex; }
  .bz-grid, .bz-grid--4, .bz-wall { grid-template-columns: 1fr; }
  .bz-pagehead, .bz-hero { text-align: center; }
  .bz-hero__inner { padding-top: 56px; }
}