/* ============================================================
   tjxsys 主题样式 — 工业蓝 + 警示橙，语义化、响应式
   ============================================================ */

:root {
  --blue-950: #07233f;
  --blue-900: #0b2e4f;
  --blue-800: #10406b;
  --blue-700: #16517f;
  --blue-100: #e6eef6;
  --blue-050: #f3f7fb;
  --accent: #e2711d;
  --accent-dark: #c75f12;
  --text: #22303c;
  --muted: #5d6f80;
  --line: #e2e9f0;
  --white: #ffffff;
  --bg-alt: #f2f6fa;
  --radius: 10px;
  --shadow: 0 6px 24px rgba(11, 46, 79, 0.09);
  --shadow-lg: 0 14px 40px rgba(11, 46, 79, 0.16);
  --container: 1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue-700); text-decoration: none; }
a:hover { color: var(--accent); }
h1, h2, h3, h4 { line-height: 1.3; margin: 0 0 .5em; color: var(--blue-950); }
p { margin: 0 0 1em; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.container--narrow { max-width: 880px; }
.screen-reader-text { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(1px,1px,1px,1px); }
.skip-link:focus { clip: auto; width: auto; height: auto; background: var(--accent); color: #fff; padding: 8px 14px; z-index: 999; }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 11px 26px; border-radius: 6px; font-weight: 600;
  border: 2px solid transparent; cursor: pointer; transition: all .2s ease;
  line-height: 1.4; font-size: 16px; text-align: center;
}
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-dark); color: #fff; transform: translateY(-1px); }
.btn--ghost { border-color: rgba(255,255,255,.85); color: #fff; background: transparent; }
.btn--ghost:hover { background: rgba(255,255,255,.12); color: #fff; }
.btn--light { background: #fff; color: var(--blue-900); }
.btn--light:hover { background: var(--blue-100); color: var(--blue-900); }
.btn--outline { border-color: var(--blue-700); color: var(--blue-700); background: transparent; }
.btn--outline:hover { background: var(--blue-700); color: #fff; }
.btn--outline-light { border-color: rgba(255,255,255,.85); color: #fff; background: transparent; }
.btn--outline-light:hover { background: rgba(255,255,255,.12); color: #fff; }
.btn--lg { padding: 14px 34px; font-size: 17px; }

/* ---------------- 顶部信息条 ---------------- */
.topbar { background: var(--blue-950); color: #cfe0ef; font-size: 13.5px; }
.topbar__inner { display: flex; justify-content: space-between; align-items: center; min-height: 38px; gap: 12px; flex-wrap: wrap; }
.topbar__phones { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.topbar__sep { color: #7d99b3; }
.topbar__phone { color: #fff; font-weight: 700; font-size: 14.5px; }
.topbar__phone:hover { color: var(--accent); }

/* ---------------- 固定导航 ---------------- */
.site-header {
  position: sticky; top: 0; z-index: 90;
  background: rgba(255,255,255,.96); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(11,46,79,.04);
}
.site-header.is-scrolled { box-shadow: var(--shadow); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 74px; }
.site-brand { display: flex; align-items: center; max-width: 360px; }
.site-brand__link { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; }
.site-brand__logo {
  width: 44px; height: 44px; border-radius: 6px;
  object-fit: contain; background: #fff;
  box-shadow: 0 2px 6px rgba(11,46,79,.08);
  flex: none;
}
.site-brand__name {
  font-size: 17px; font-weight: 800; color: var(--blue-900); line-height: 1.25;
  display: block; letter-spacing: .5px;
}
.site-nav__menu { display: flex; gap: 6px; list-style: none; margin: 0; padding: 0; }
.site-nav__menu li { position: relative; }
.site-nav__menu a {
  display: block; padding: 10px 14px; color: var(--text);
  font-weight: 500; border-radius: 6px; transition: all .15s ease;
}
.site-nav__menu a:hover, .site-nav__menu .current-menu-item > a, .site-nav__menu .current_page_item > a {
  color: var(--accent); background: var(--blue-050);
}
.site-header__actions { display: flex; align-items: center; gap: 14px; }
.site-header__cta { padding: 9px 20px; font-size: 14.5px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2.5px; background: var(--blue-900); border-radius: 2px; transition: all .25s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------------- 首页 Hero ---------------- */
.hero {
  position: relative; color: #fff; overflow: hidden;
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(226,113,29,.35), transparent 60%),
    radial-gradient(900px 460px at -10% 110%, rgba(26,92,143,.55), transparent 55%),
    linear-gradient(135deg, var(--blue-950) 0%, var(--blue-800) 55%, var(--blue-700) 100%);
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 44px 44px;
}
.hero__inner { position: relative; padding: 96px 20px 110px; max-width: var(--container); margin: 0 auto; }
.hero__title { color: #fff; font-size: 44px; font-weight: 800; letter-spacing: 1px; margin-bottom: 18px; }
.hero__sub { color: #d7e5f2; font-size: 18px; max-width: 640px; margin-bottom: 32px; }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero__trust { list-style: none; display: flex; gap: 30px; flex-wrap: wrap; margin: 0; padding: 18px 0 0; border-top: 1px solid rgba(255,255,255,.18); color: #e8f1f9; }
.hero__trust li { display: flex; align-items: center; gap: 8px; font-size: 15px; }
.hero__trust li::before { content: "✓"; color: var(--accent); font-weight: 800; }

/* ---------------- 通用 section ---------------- */
.section { padding: 76px 0; }
.section--alt { background: var(--bg-alt); }
.section__head { text-align: center; margin-bottom: 46px; }
.section__title { font-size: 32px; font-weight: 800; }
.section__title::after { content: ""; display: block; width: 56px; height: 4px; background: var(--accent); border-radius: 2px; margin: 14px auto 0; }
.section__sub { color: var(--muted); margin-top: 12px; font-size: 15.5px; }
.section__foot { text-align: center; margin-top: 40px; }

/* ---------------- 卡片（产品） ---------------- */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: 0 2px 8px rgba(11,46,79,.05); transition: all .25s ease;
  display: flex; flex-direction: column; margin: 0;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--blue-100); }
.card__media { aspect-ratio: 4/3; overflow: hidden; background: var(--blue-050); display: flex; align-items: center; justify-content: center; }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.card:hover .card__media img { transform: scale(1.05); }
.card__media-fallback {
  width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
  font-size: 56px; font-weight: 800; color: var(--blue-700); background: linear-gradient(135deg, var(--blue-050), #dfeaf4);
}
.card__body { padding: 20px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.card__title { font-size: 18.5px; margin-bottom: 8px; }
.card__title a { color: var(--blue-950); }
.card__title a:hover { color: var(--accent); }
.card__excerpt { color: var(--muted); font-size: 14px; flex: 1; margin-bottom: 14px; }
.card__more { font-weight: 700; font-size: 14.5px; color: var(--accent); }

/* ---------------- 空态 ---------------- */
.empty-state { text-align: center; padding: 56px 24px; border: 1.5px dashed var(--line); border-radius: var(--radius); background: #fbfdfe; }
.empty-state--inline { padding: 36px 24px; }
.empty-state__title { font-size: 22px; font-weight: 700; color: var(--blue-800); margin-bottom: 8px; }
.empty-state__text { color: var(--muted); margin-bottom: 20px; }

/* ---------------- 证书 ---------------- */
.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cert-grid--large { grid-template-columns: repeat(4, 1fr); }
.cert-card { margin: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.cert-card__link { display: block; aspect-ratio: 4/3; background: var(--blue-050); overflow: hidden; }
.cert-card__link img { width: 100%; height: 100%; object-fit: contain; padding: 12px; transition: transform .3s ease; }
.cert-card__link:hover img { transform: scale(1.06); }
.cert-card figcaption { padding: 12px 14px; font-size: 14px; text-align: center; color: var(--blue-900); font-weight: 600; border-top: 1px solid var(--line); display: flex; flex-direction: column; gap: 4px; }
.cert-card figcaption span { color: var(--muted); font-weight: 400; font-size: 12.5px; }

/* ---------------- FAQ ---------------- */
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; overflow: hidden; }
.faq-item summary {
  cursor: pointer; list-style: none; padding: 18px 22px; font-weight: 700; color: var(--blue-950);
  display: flex; justify-content: space-between; align-items: center; gap: 14px; font-size: 16.5px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 22px; color: var(--accent); font-weight: 800; transition: transform .2s ease; flex: none; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item[open] summary { border-bottom: 1px solid var(--line); background: var(--blue-050); }
.faq-item__body { padding: 18px 22px; color: var(--text); font-size: 15.5px; }
.faq-item__body p:last-child { margin-bottom: 0; }

/* ---------------- CTA ---------------- */
.cta { background: linear-gradient(120deg, var(--blue-900), var(--blue-700)); color: #fff; }
.cta__inner { padding: 70px 20px; text-align: center; max-width: var(--container); margin: 0 auto; }
.cta__title { color: #fff; font-size: 30px; font-weight: 800; margin-bottom: 10px; }
.cta__text { color: #d7e5f2; margin-bottom: 28px; font-size: 16.5px; }
.cta__actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---------------- 页头(内页 Hero) ---------------- */
.page-hero { background: linear-gradient(120deg, var(--blue-950), var(--blue-800)); color: #fff; padding: 52px 0; }
.page-hero__title { color: #fff; font-size: 34px; font-weight: 800; margin-bottom: 6px; }
.page-hero__sub { color: #cfe0ef; margin: 0; font-size: 16px; }

/* 通用页面正文 */
.page-head { padding: 44px 20px 0; }
.page-head__title { font-size: 32px; font-weight: 800; }
.page-body { padding: 30px 20px 76px; }
.page-body h2 { margin-top: 1.4em; }

/* 面包屑 */
.breadcrumb { padding-top: 26px; font-size: 14px; color: var(--muted); display: flex; gap: 8px; flex-wrap: wrap; }
.breadcrumb a { color: var(--blue-700); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span:last-child { color: var(--muted); }

/* ---------------- 产品详情 ---------------- */
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; padding-top: 30px; padding-bottom: 30px; }
.product-detail__media { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--blue-050); aspect-ratio: 4/3; }
.product-detail__media img { width: 100%; height: 100%; object-fit: cover; }
.product-detail__placeholder { display: flex; align-items: center; justify-content: center; height: 100%; color: var(--muted); font-size: 18px; }
.product-detail__title { font-size: 30px; font-weight: 800; margin-bottom: 14px; }
.product-detail__lead { color: var(--muted); font-size: 17px; border-left: 4px solid var(--accent); padding-left: 16px; }
.product-detail__cta { display: flex; gap: 14px; flex-wrap: wrap; margin: 24px 0; }
.product-detail__content { grid-column: 1 / -1; padding: 34px 0 60px; border-top: 1px solid var(--line); }

/* ---------------- 联系页 ---------------- */
.contact { display: grid; grid-template-columns: 5fr 7fr; gap: 40px; align-items: start; }
.contact__heading { font-size: 24px; font-weight: 800; margin-bottom: 20px; }
.contact__list { list-style: none; margin: 0 0 26px; padding: 0; }
.contact__list li { display: flex; flex-direction: column; gap: 2px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.contact__label { font-size: 13px; color: var(--muted); letter-spacing: 1px; }
.contact__value { font-size: 17px; color: var(--blue-950); font-weight: 600; }
.contact__value a { color: var(--accent); font-size: 19px; font-weight: 800; }
.contact__value--phones { display: flex; flex-direction: column; gap: 4px; }
.contact__value--phones a { display: block; width: max-content; }
.contact__value--phones a + a { font-size: 16.5px; color: var(--blue-800); font-weight: 700; }
.contact__qr { display: block; width: 128px; height: 128px; padding: 6px; background: #fff; border: 1px solid var(--line); border-radius: 8px; }
.contact__tip { background: var(--blue-050); border-left: 4px solid var(--accent); border-radius: 0 var(--radius) var(--radius) 0; padding: 16px 20px; font-size: 14.5px; color: var(--text); }
.contact__form { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.contact__form input[type="text"], .contact__form input[type="email"], .contact__form input[type="tel"], .contact__form textarea, .contact__form select {
  width: 100%; border: 1.5px solid var(--line); border-radius: 6px; padding: 11px 14px; font-size: 15px;
  font-family: inherit; color: var(--text); background: #fff; margin-bottom: 14px;
}
.contact__form input:focus, .contact__form textarea:focus, .contact__form select:focus { outline: none; border-color: var(--blue-700); }
.contact__form input[type="submit"], .contact__form .wpcf7-submit {
  background: var(--accent); color: #fff; border: 0; border-radius: 6px; padding: 12px 34px; font-size: 16px;
  font-weight: 700; cursor: pointer; transition: all .2s ease;
}
.contact__form input[type="submit"]:hover, .contact__form .wpcf7-submit:hover { background: var(--accent-dark); }

/* ---------------- 页脚 ---------------- */
.site-footer { background: var(--blue-950); color: #b9cbdb; margin-top: 0; }
.site-footer__grid { display: grid; grid-template-columns: 4fr 3fr 4fr; gap: 40px; padding: 60px 20px 40px; }
.site-footer__title { color: #fff; font-size: 18px; font-weight: 700; margin-bottom: 18px; }
.site-footer__desc { font-size: 14.5px; line-height: 1.8; }
.site-footer__menu { list-style: none; margin: 0; padding: 0; }
.site-footer__menu li { margin-bottom: 10px; }
.site-footer__menu a { color: #b9cbdb; font-size: 14.5px; }
.site-footer__menu a:hover { color: var(--accent); }
.site-footer__contact { list-style: none; margin: 0; padding: 0; font-size: 14.5px; line-height: 2; }
.site-footer__contact a { color: var(--accent); font-weight: 700; }
.site-footer__qr-tip { margin: 16px 0 0; font-size: 13px; color: #8ba3b8; }
.site-footer__qr { display: block; width: 92px; height: 92px; margin-top: 8px; padding: 4px; background: #fff; border-radius: 6px; }
.site-footer__bottom { border-top: 1px solid rgba(255,255,255,.12); }
.site-footer__bottom .container { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; padding-top: 18px; padding-bottom: 18px; font-size: 13px; color: #8ba3b8; }
.site-footer__icp { color: #8ba3b8; }
.site-footer__icp a { color: #b9cbdb; text-decoration: none; }
.site-footer__icp a:hover { color: #fff; text-decoration: underline; }

/* ============================================================
   悬浮客服栏（右侧固定 / 移动端底部横排）
   ============================================================ */
.floating {
  position: fixed; right: 16px; bottom: 80px;
  z-index: 95;
  display: flex; flex-direction: column; gap: 10px;
  align-items: flex-end;
  font-size: 14px;
}
.floating__btn {
  position: relative;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--blue-900);
  display: inline-flex; align-items: center; justify-content: center;
  text-decoration: none; cursor: pointer;
  box-shadow: 0 6px 18px rgba(11,46,79,.14);
  transition: transform .18s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}
.floating__btn:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(11,46,79,.2); }
.floating__btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.floating__btn[hidden] { display: none; }

/* 悬浮提示文字（左侧滑出） */
.floating__tip {
  position: absolute; right: calc(100% + 8px); top: 50%; transform: translateY(-50%);
  background: var(--blue-950); color: #fff; padding: 5px 11px; border-radius: 4px;
  font-size: 12.5px; white-space: nowrap; font-weight: 500;
  opacity: 0; pointer-events: none; transition: opacity .18s ease, transform .18s ease;
}
.floating__tip::after {
  content: ""; position: absolute; left: 100%; top: 50%; transform: translateY(-50%);
  border: 5px solid transparent; border-left-color: var(--blue-950);
}
.floating__btn:hover .floating__tip,
.floating__btn:focus-visible .floating__tip { opacity: 1; transform: translateY(-50%) translateX(-2px); }

/* 颜色变体 */
.floating__btn--msg:hover { background: var(--blue-700); color: #fff; border-color: var(--blue-700); }
.floating__btn--phone:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.floating__btn--qr:hover { background: #07c160; color: #fff; border-color: #07c160; }
.floating__btn--top:hover { background: var(--blue-950); color: #fff; border-color: var(--blue-950); }

/* 电话子菜单 + 微信二维码弹层（hover/focus 显示） */
.floating__btn--phone-wrap,
.floating__btn--qr-wrap { position: relative; }
.floating__phones,
.floating__qr {
  position: absolute; right: calc(100% + 12px); top: 50%; transform: translateY(-50%) translateX(8px);
  background: #fff; border: 1px solid var(--line); border-radius: 8px;
  box-shadow: 0 12px 30px rgba(11,46,79,.18);
  padding: 10px;
  min-width: 140px;
  opacity: 0; pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
  display: flex; flex-direction: column; gap: 4px; align-items: stretch;
}
.floating__qr { padding: 14px; min-width: 180px; align-items: center; text-align: center; }
.floating__qr-img { display: block; width: 160px; height: 160px; border-radius: 4px; }
.floating__qr p { margin: 8px 0 0; color: var(--blue-900); font-size: 12.5px; line-height: 1.5; }
.floating__phones a {
  display: block; padding: 8px 12px; color: var(--blue-900); font-weight: 700;
  text-decoration: none; border-radius: 4px;
}
.floating__phones a:hover { background: var(--blue-050); color: var(--accent); }

.floating__btn--phone-wrap:hover .floating__phones,
.floating__btn--phone-wrap:focus-within .floating__phones,
.floating__btn--qr-wrap:hover .floating__qr,
.floating__btn--qr-wrap:focus-within .floating__qr {
  opacity: 1; pointer-events: auto; transform: translateY(-50%) translateX(0);
}

/* =============== 响应式：PC → 移动端 =============== */
@media (max-width: 992px) {
  .card-grid, .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-grid--large { grid-template-columns: repeat(3, 1fr); }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
  .contact { grid-template-columns: 1fr; }
  .product-detail { grid-template-columns: 1fr; }
}

/* ---------- 系列导航 ---------- */
.series-nav { margin: 0 0 28px; }
.series-nav__list {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 10px;
}
.series-nav__item a {
  display: flex; flex-direction: column; gap: 2px;
  padding: 10px 18px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--white); color: var(--text); text-decoration: none;
  font-size: 15px; font-weight: 600; line-height: 1.3;
  transition: border-color .2s, background .2s, color .2s;
}
.series-nav__item a:hover {
  border-color: var(--blue-700); background: var(--blue-050); color: var(--blue-800);
}
.series-nav__item.is-active a {
  background: var(--blue-800); border-color: var(--blue-800); color: #fff;
}
.series-nav__count { font-size: 12px; font-weight: 400; color: var(--muted); }
.series-nav__item.is-active .series-nav__count { color: rgba(255,255,255,.78); }

/* ---------- 系列分组块（产品中心） ---------- */
.series-block { padding: 34px 0; border-top: 1px solid var(--line); }
.series-block:first-of-type { border-top: 0; padding-top: 8px; }
.series-block__title { margin: 0 0 6px; font-size: 24px; }
.series-block__title a { color: var(--blue-900); text-decoration: none; }
.series-block__title a:hover { color: var(--accent-dark); }
.series-block__meta {
  margin: 0 0 10px; font-size: 13px; color: var(--muted);
  display: flex; flex-wrap: wrap; gap: 14px;
}
.series-block__intro { margin: 0 0 8px; color: var(--text); max-width: 860px; }
.series-block__models { margin: 0 0 18px; font-size: 14px; color: var(--muted); max-width: 900px; }
.series-block__label { font-weight: 600; color: var(--blue-800); }
.series-block__more { margin: 14px 0 0; }

/* ---------- 系列落地页说明 ---------- */
.series-intro {
  background: var(--bg-alt); border-left: 4px solid var(--blue-700);
  border-radius: var(--radius); padding: 20px 24px; margin: 0 0 28px;
}
.series-intro__title { margin: 0 0 8px; font-size: 19px; color: var(--blue-900); }
.series-intro p { margin: 0 0 6px; }
.series-intro__models { font-size: 14px; color: var(--muted); }
.series-intro__label { font-weight: 600; color: var(--blue-800); }

.cta--inline { margin-top: 40px; border-radius: var(--radius); }

@media (max-width: 768px) {
  .series-nav__list { gap: 8px; }
  .series-nav__item a { padding: 8px 14px; font-size: 14px; }
  .series-block__title { font-size: 21px; }
  .series-intro { padding: 16px 18px; }
}
@media (max-width: 560px) {
  .series-nav__list { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 6px; -webkit-overflow-scrolling: touch; }
  .series-nav__item { flex: 0 0 auto; }
}

@media (max-width: 768px) {
  .hero__title { font-size: 32px; }
  .section { padding: 56px 0; }
  .section__title { font-size: 26px; }
  .cta__title { font-size: 24px; }
  .topbar__addr { display: none; }
  .topbar__inner { justify-content: center; }

  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed; top: 74px; right: 0; width: min(320px, 82vw); height: calc(100vh - 74px);
    background: #fff; box-shadow: -12px 0 32px rgba(11,46,79,.16);
    transform: translateX(100%); transition: transform .3s ease; overflow-y: auto; z-index: 89;
    border-left: 1px solid var(--line);
  }
  .site-nav.is-open { transform: translateX(0); }
  .site-nav__menu { flex-direction: column; gap: 0; padding: 12px; }
  .site-nav__menu a { padding: 14px 16px; font-size: 16px; border-bottom: 1px solid var(--line); border-radius: 0; }
  .site-header__cta { display: none; }

  /* 悬浮客服栏：移动端 → 底部横排 */
  .floating {
    right: 8px; left: 8px; bottom: 10px;
    flex-direction: row; justify-content: space-between; gap: 8px;
    background: rgba(255,255,255,.96); backdrop-filter: blur(8px);
    border: 1px solid var(--line); border-radius: 14px;
    padding: 8px;
    box-shadow: 0 8px 24px rgba(11,46,79,.18);
  }
  .floating__btn--top { display: none; }   /* 移动端隐藏回到顶部 */
  .floating__btn { width: 44px; height: 44px; }
  /* 移动端提示改成小标签（display 短词） */
  .floating__tip { display: none; }
  /* 子菜单从右侧弹出改为向上弹出 */
  .floating__phones,
  .floating__qr {
    right: 50%; top: auto; bottom: calc(100% + 8px); transform: translateX(50%) translateY(8px);
  }
  .floating__btn--phone-wrap:hover .floating__phones,
  .floating__btn--phone-wrap:focus-within .floating__phones,
  .floating__btn--qr-wrap:hover .floating__qr,
  .floating__btn--qr-wrap:focus-within .floating__qr {
    transform: translateX(50%) translateY(0);
  }
  /* 移动端给页面底部留出空间避免遮挡 */
  body { padding-bottom: 70px; }
}

@media (max-width: 560px) {
  .card-grid, .cert-grid, .cert-grid--large { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr; }
  .site-brand__name { font-size: 15px; }
  .site-brand__logo { width: 38px; height: 38px; }
  .hero__inner { padding: 64px 20px 76px; }
  .hero__actions .btn { width: 100%; }
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 992px) {
  .card-grid, .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-grid--large { grid-template-columns: repeat(3, 1fr); }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
  .contact { grid-template-columns: 1fr; }
  .product-detail { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .hero__title { font-size: 32px; }
  .section { padding: 56px 0; }
  .section__title { font-size: 26px; }
  .cta__title { font-size: 24px; }
  .topbar__addr { display: none; }
  .topbar__inner { justify-content: center; }

  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed; top: 74px; right: 0; width: min(320px, 82vw); height: calc(100vh - 74px);
    background: #fff; box-shadow: -12px 0 32px rgba(11,46,79,.16);
    transform: translateX(100%); transition: transform .3s ease; overflow-y: auto; z-index: 89;
    border-left: 1px solid var(--line);
  }
  .site-nav.is-open { transform: translateX(0); }
  .site-nav__menu { flex-direction: column; gap: 0; padding: 12px; }
  .site-nav__menu a { padding: 14px 16px; font-size: 16px; border-bottom: 1px solid var(--line); border-radius: 0; }
  .site-header__cta { display: none; }
}

@media (max-width: 560px) {
  .card-grid, .cert-grid, .cert-grid--large { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr; }
  .site-brand__name { font-size: 16.5px; }
  .hero__inner { padding: 64px 20px 76px; }
  .hero__actions .btn { width: 100%; }
}

/* 厂家概况正文（首页实体介绍） */
.prose p { margin: 0 0 14px; font-size: 15.5px; line-height: 1.95; color: var(--muted); }
.prose__facts { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.prose__facts li {
  font-size: 15px; line-height: 1.8; color: var(--muted);
  background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px;
}
.prose__facts strong { color: var(--blue-900); }

/* 同系列推荐 */
.related { border-top: 1px solid var(--line); }
.related .card__title { font-size: 17px; }
@media (max-width: 560px) {
  .prose p { font-size: 15px; }
}

/* ===== 内容页：表格 / 要点 / CTA（v1.4.0） ===== */
.page-body table,
.article-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 22px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}
.page-body table th,
.article-table th {
  background: var(--blue-900);
  color: #fff;
  font-weight: 600;
  text-align: left;
  padding: 10px 12px;
  border: 1px solid var(--blue-900);
  white-space: nowrap;
}
.page-body table td,
.article-table td {
  padding: 10px 12px;
  border: 1px solid var(--line);
  vertical-align: top;
}
.page-body table tbody tr:nth-child(even),
.article-table tbody tr:nth-child(even) {
  background: #fafcff;
}
.page-body ul,
.page-body ol {
  margin: 0 0 16px;
  padding-left: 22px;
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.95;
}
.page-body li { margin-bottom: 6px; }
.page-body p {
  margin: 0 0 15px;
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--muted);
}
.page-body a { color: var(--blue-900); text-decoration: underline; }
.page-body a:hover { color: var(--blue-700); }
.article-lead {
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--blue-950);
  background: #f4f8ff;
  border-left: 4px solid var(--blue-900);
  padding: 14px 18px;
  margin: 0 0 24px;
  border-radius: 0 6px 6px 0;
}
.article-note {
  background: #fffaf0;
  border: 1px solid #ffe2ab;
  border-radius: 6px;
  padding: 14px 18px;
  margin: 18px 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: #7a5a12;
}
.article-note strong { color: #6b4a05; }
.article-cta {
  margin: 28px 0 8px;
  padding: 20px 22px;
  background: var(--blue-900);
  border-radius: 8px;
  color: #fff;
}
.article-cta p { color: #fff; margin: 0 0 8px; font-size: 15.5px; }
.article-cta a { color: #fff; text-decoration: underline; font-weight: 600; }
.article-qa { margin: 0 0 18px; }
.article-qa h3 {
  font-size: 16px;
  margin: 0 0 6px;
  color: var(--blue-950);
}
.article-qa p { margin: 0; }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-scroll table { min-width: 560px; }

/* 新闻中心列表 */
.news-list { list-style: none; margin: 0; padding: 0; }
.news-item { padding: 22px 0; border-bottom: 1px solid var(--line); }
.news-item:first-child { padding-top: 0; }
.news-item__link { display: block; font-size: 19px; font-weight: 700; color: var(--blue-900); text-decoration: none; line-height: 1.5; }
.news-item__link:hover { color: var(--blue-700); text-decoration: underline; }
.news-item__meta { margin-top: 8px; font-size: 13px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.news-item__cat { padding: 2px 10px; background: var(--blue-050); color: var(--blue-700); border-radius: 4px; }
.news-item__excerpt { margin: 10px 0 0; color: var(--muted); line-height: 1.8; }
.news-pagination { margin-top: 34px; text-align: center; }
.news-pagination .page-numbers {
  display: inline-block; padding: 7px 13px; margin: 0 3px;
  border: 1px solid var(--line); border-radius: 4px;
  color: var(--blue-700); text-decoration: none; font-size: 14px;
}
.news-pagination .page-numbers:hover { border-color: var(--blue-700); }
.news-pagination .page-numbers.current { background: var(--blue-700); color: #fff; border-color: var(--blue-700); }

/* 文章详情 */
.post-meta { margin: 0 0 20px; font-size: 14px; color: var(--muted); }
.post-meta__cat { padding: 2px 10px; background: var(--blue-050); color: var(--blue-700); border-radius: 4px; margin-left: 10px; }
.post-back { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 15px; }
.post-back a { color: var(--blue-700); }

/* 反垃圾蜜罐字段：真实客户看不到，机器人填写即被拦截 */
.tjxsys-hp-wrap {
  position: absolute !important;
  left: -9999px !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
@media (max-width: 768px) {
  .page-body p,
  .page-body ul,
  .page-body ol { font-size: 15px; }
  .article-lead { font-size: 15.5px; padding: 12px 14px; }
  .article-cta { padding: 16px 16px; }
}

/* ---------------- FAQ 独立页 /faq/{slug}/（2026-10-07 新增） ---------------- */
.faq-detail { padding-top: 30px; padding-bottom: 10px; }
.faq-detail__body { margin-bottom: 6px; }
.faq-detail__cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 6px; }
.faq-item__more { margin: 14px 0 0; font-size: 14.5px; }
.faq-item__more a { color: var(--blue-700); font-weight: 600; }
.faq-related { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.faq-related li { border-bottom: 1px solid var(--line); }
.faq-related a { display: block; padding: 14px 4px; color: var(--blue-800); font-weight: 600; }
.faq-related a:hover { color: var(--accent); }

/* ---------------- FAQ 汇总页：问答分组（2026-10-07） ----------------
   /faq/ 页现在分两组：faq 条目列表 + 矿用电缆选型快答。
   两组都是该页 FAQPage 结构化数据的组成部分，样式沿用既有 faq-list / faq-item。 */
.faq-group { margin-top: 64px; }

/* 产品系列页 / 产品页 / 专题页的「相关常见问题」区块（与页面 FAQPage 标记同源） */
.section--related-faq .section__head { text-align: left; }
.section--related-faq .section__title { font-size: 26px; }
.section--related-faq .section__title::after { margin-left: 0; }