/* Lato 本地托管 */
@font-face { font-family: 'Lato'; font-style: normal; font-weight: 400; font-display: swap; src: url('/assets/fonts/lato-400.woff2') format('woff2'); }
@font-face { font-family: 'Lato'; font-style: normal; font-weight: 700; font-display: swap; src: url('/assets/fonts/lato-700.woff2') format('woff2'); }
@font-face { font-family: 'Lato'; font-style: normal; font-weight: 900; font-display: swap; src: url('/assets/fonts/lato-900.woff2') format('woff2'); }
/* ============================================================
   TOOLOGIC — ELTECH 风格改版
   字体 Lato / 主色 #df0024 / 灰底 #f0f0f0 / 深字 #2b2f3a
   ============================================================ */
:root {
  --red: #df0024;
  --red-dark: #b8001d;
  --dark: #2b2f3a;
  --gray: #757575;
  --gray-2: #9ea2a5;
  --line: #e8e8e8;
  --line-2: #f0f0f0;
  --bg: #f7f7f7;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: 'Lato', Arial, Helvetica, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: var(--dark);
  background: #fff;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--dark); text-decoration: none; transition: color .18s; }
a:hover { color: var(--red); }

h1, h2, h3, h4 { margin: 0 0 14px; font-weight: 700; line-height: 1.2; color: var(--dark); }
h1, .h2-title { font-size: clamp(24px, 2.6vw, 34px); letter-spacing: -.2px; }
h2 { font-size: 26px; }
h3, .h3-title { font-size: 18px; }
p { margin: 0 0 14px; }

.container { width: min(1220px, calc(100% - 48px)); margin: 0 auto; }
.container-big { width: min(1400px, calc(100% - 48px)); margin: 0 auto; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* ---------------- 头部 ---------------- */
.header {
  background: #fff;
  box-shadow: 0 4px 10px rgba(0, 0, 0, .07);
  position: relative;
  z-index: 50;
}
.header__flex {
  display: flex;
  align-items: center;
  gap: 26px;
  padding: 18px 0;
}
.header__logo { flex: 0 0 auto; }
.qh-logo-img { height: 44px; width: auto; }

.header__form {
  flex: 1 1 auto;
  max-width: 300px;
  position: relative;
  display: flex;
}
.header__input {
  width: 100%;
  height: 42px;
  padding: 0 46px 0 16px;
  border: 1px solid var(--line);
  background: var(--bg);
  font-family: inherit;
  font-size: 14px;
  color: var(--dark);
  outline: none;
}
.header__input:focus { border-color: var(--red); background: #fff; }
.header__icon {
  position: absolute;
  right: 0;
  top: 0;
  width: 44px;
  height: 42px;
  border: 0;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.header__contatcs {
  margin-left: auto;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.45;
}
.header__mail { font-size: 14px; color: var(--dark); font-weight: 700; }
.header__phone { font-size: 13px; color: var(--gray); }
.header__time { font-size: 11.5px; color: var(--gray-2); letter-spacing: .2px; }

.header__bottom { border-top: 1px solid var(--line-2); }
.menu__list {
  display: flex;
  gap: 34px;
  margin: 0;
  padding: 0;
  list-style: none;
  flex-wrap: wrap;
}
.menu__item { position: relative; }
.menu__link {
  display: block;
  padding: 14px 0;
  font-size: 12.5px;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--dark);
  font-weight: 700;
}
.menu__link:hover { color: var(--red); }
.menu__item_active .menu__link { color: var(--red); }
.menu__item_active .menu__link::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 3px;
  background: var(--red);
}

/* ---------------- 首屏 ---------------- */
.hero { position: relative; background: #fff; }
.hero__swiper { height: clamp(320px, 46vw, 560px); }
.hero .swiper-slide { position: relative; }
.hero__block {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}
.hero__block::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,.62) 0%, rgba(0,0,0,.28) 55%, rgba(0,0,0,.05) 100%);
}
.hero .container { position: relative; z-index: 2; }
.hero__container { height: 100%; display: flex; align-items: center; }
.hero__title, .hero h1, .hero h2 {
  color: #fff;
  font-size: clamp(26px, 3.2vw, 44px);
  max-width: 640px;
  margin-bottom: 22px;
  text-shadow: 0 2px 12px rgba(0,0,0,.25);
}
.blue-btn, .hero__btn, .qh-cta {
  display: inline-block;
  padding: 13px 30px;
  background: var(--red);
  color: #fff !important;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  border: 0;
  cursor: pointer;
  transition: background .18s;
}
.blue-btn:hover, .hero__btn:hover, .qh-cta:hover { background: var(--red-dark); color: #fff !important; }
.qh-cta_ghost {
  background: transparent !important;
  color: var(--dark) !important;
  border: 1px solid var(--line) !important;
}
.qh-cta_ghost:hover { border-color: var(--red) !important; color: var(--red) !important; }

.hero__pagination { position: absolute; bottom: 18px; left: 0; right: 0; z-index: 3; display: flex; justify-content: center; gap: 8px; }

/* ---------------- 首屏下方信息卡 ---------------- */
.hero__flex {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.hero__card {
  padding: 32px 28px 30px;
  border-right: 1px solid var(--line-2);
  position: relative;
}
.hero__card:last-child { border-right: 0; }
.hero__card strong { display: block; font-size: 18px; color: var(--red); margin-bottom: 9px; letter-spacing: .01em; }
.hero__card p, .hero__card span { color: var(--gray); font-size: 14px; line-height: 1.58; }
.hero__icon { position: absolute; right: 22px; bottom: 20px; opacity: .55; }

/* ---------------- 库存条 ---------------- */
.qh-stock { background: var(--dark); padding: 42px 0; }
.qh-stock__inner { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; text-align: center; }
.qh-stock__item { position: relative; }
.qh-stock__item + .qh-stock__item { border-left: 1px solid rgba(255,255,255,.13); }
.qh-stock__item b { display: block; color: #fff; font-size: clamp(24px, 2.6vw, 34px); font-weight: 900; letter-spacing: .01em; }
.qh-stock__item span { display: block; color: #a8a8a8; font-size: 11.5px; margin-top: 7px; letter-spacing: .12em; text-transform: uppercase; }
.qh-stock-cta { padding: 20px 0 0; text-align: center; background: var(--dark); padding-bottom: 30px; }

/* ---------------- 服务 / 产品卡网格 ---------------- */
.catalog { padding: 78px 0; background: var(--bg); }
.catalog__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 28px;
}
.catalog__card {
  background: #fff;
  border: 1px solid var(--line);
  padding: 28px 26px 0;
  position: relative;
  min-height: 272px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: box-shadow .22s, transform .22s, border-color .22s;
}
.catalog__card:hover { box-shadow: 0 16px 36px rgba(0,0,0,.10); transform: translateY(-3px); border-color: #dcdcdc; }
.catalog__card .h3-title { color: var(--red); font-size: 17px; margin-bottom: 10px; }
.catalog__card > span { display: block; color: var(--gray); font-size: 13.5px; line-height: 1.6; margin: 0 0 22px; }
.catalog__card .catalog__text, .catalog__card p { color: var(--gray); font-size: 13.5px; line-height: 1.6; margin: 0 0 22px; }
.catalog__img, .catalog__card img {
  position: static;
  width: calc(100% + 52px);
  height: 152px;
  margin: auto -26px 0;
  object-fit: cover;
  opacity: 1;
  transition: transform .45s ease;
}
.catalog__card:hover .catalog__img { transform: scale(1.05); }
.catalog__link { position: absolute; inset: 0; }
.catalog__card_wide { grid-column: auto; }

/* ---------------- 关于 ---------------- */
.about { padding: 84px 0; background: #fff; }
.about__flex { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.about__title { color: var(--dark); }
.about__block strong { display: block; font-size: 17px; line-height: 1.5; margin-bottom: 14px; color: var(--dark); }
.about__block p { color: var(--gray); }
.about__list { margin: 24px 0 0; padding: 0; list-style: none; }
.about__item { padding: 12px 0 12px 22px; border-top: 1px solid var(--line-2); position: relative; color: var(--gray); font-size: 14px; }
.about__item::before { content: ''; position: absolute; left: 0; top: 20px; width: 8px; height: 8px; background: var(--red); }
.about__flex-2 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 30px; }
.about__img { background: var(--bg); }
.about__text { font-size: 13px; color: var(--gray); margin-top: 10px; }

/* ---------------- 品牌区 ---------------- */
.production { padding: 78px 0 86px; background: var(--bg); }
.production__flex { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.production__title, .production__title-2 { color: var(--dark); margin: 0; }
.production__text { color: var(--gray); font-size: 14px; display: block; margin-top: 8px; }
.production__block-3 { display: flex; align-items: center; gap: 18px; }
.production__link { font-size: 12.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--red); display: inline-flex; align-items: center; gap: 10px; }
.production__link svg { display: none; }

.production__swiper {
  padding-left: max(24px, calc((100vw - 1220px) / 2));
  padding-right: max(24px, calc((100vw - 1220px) / 2));
  overflow: hidden;
  margin-top: 34px;
}
.production__swiper-block {
  background: #fff;
  border: 1px solid var(--line);
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  position: relative;
  transition: border-color .22s, box-shadow .22s;
}
.production__swiper-block:hover { border-color: var(--red); box-shadow: 0 10px 24px rgba(0,0,0,.07); }
/* logo 已归一化到 320×104 统一画布（内容居中、视觉重量对齐），此处等比铺满即可 */
.production__swiper-block img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: .96;
  transition: opacity .25s, transform .25s;
}
.production__swiper-block:hover img { opacity: 1; transform: scale(1.03); }
.production__swiper-block a { position: absolute; inset: 0; }

.production__arrows { display: flex; gap: 8px; }
.production__arrows button { border: 1px solid var(--line); background: #fff; width: 42px; height: 42px; cursor: pointer; padding: 0; line-height: 0; display: flex; align-items: center; justify-content: center; }
.production__arrows button:hover { border-color: var(--red); }
.production__arrows svg { width: 42px; height: 42px; }

.production__grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 22px; margin-top: 30px; }
.production__card {
  background: #fff;
  border: 1px solid var(--line);
  padding: 28px 26px;
  position: relative;
  min-height: 168px;
  transition: border-color .22s, box-shadow .22s, transform .22s;
}
.production__card:hover { border-color: #dcdcdc; box-shadow: 0 12px 28px rgba(0,0,0,.07); transform: translateY(-2px); }
.production__card h3 { font-size: 17px; }

/* ---------------- 内页通用 ---------------- */
.qh-page { min-height: 40vh; }
.qh-crumbs { padding: 18px 0 0; font-size: 12.5px; color: var(--gray-2); letter-spacing: .02em; }
.qh-crumbs a { color: var(--gray); }
.qh-crumbs a:hover { color: var(--red); }
.qh-crumbs span { margin: 0 8px; color: #cfcfcf; }

.qh-page .about { padding: 34px 0 60px; }
.qh-page h1 { margin-bottom: 18px; }

/* 分类网格 */
.qh-cats { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 22px; margin-top: 30px; }
.qh-cat { display: block; background: #fff; border: 1px solid var(--line); overflow: hidden; transition: box-shadow .2s, transform .2s; }
.qh-cat:hover { box-shadow: 0 16px 34px rgba(0,0,0,.10); transform: translateY(-2px); }
.qh-cat__img { display: block; height: 176px; background-size: cover; background-position: center; }
.qh-cat__body { padding: 18px 20px 22px; }
.qh-cat__body b { display: block; font-size: 16.5px; margin-bottom: 7px; color: var(--dark); }
.qh-cat:hover .qh-cat__body b { color: var(--red); }
.qh-cat__body small { display: block; color: var(--gray); font-size: 13px; line-height: 1.55; }

/* 系列卡 */
.qh-fams { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; margin: 28px 0 10px; }
.qh-fam { display: block; background: #fff; border: 1px solid var(--line); padding: 22px 24px; transition: border-color .2s, box-shadow .2s; }
.qh-fam:hover { border-color: var(--red); box-shadow: 0 10px 24px rgba(0,0,0,.06); }
.qh-fam b { display: block; font-size: 16px; color: var(--dark); }
.qh-fam small { display: block; color: var(--gray); font-size: 13px; line-height: 1.55; margin: 7px 0 12px; }
.qh-fam span { color: var(--red); font-size: 12.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }

/* 规格表 */
.qh-spec { width: 100%; border-collapse: collapse; margin: 26px 0; background: #fff; }
.qh-spec th {
  width: 190px; text-align: left; padding: 13px 16px;
  background: var(--line-2); color: var(--dark);
  border: 1px solid var(--line); font-size: 13px; font-weight: 700;
}
.qh-spec td { padding: 13px 16px; border: 1px solid var(--line); color: var(--gray); font-size: 14px; }

.qh-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 26px 0 8px; }
.qh-date { color: var(--gray-2); font-size: 13.5px; margin: -4px 0 22px; }
.qh-related { margin-top: 26px; color: var(--gray); font-size: 14px; }
.qh-related a { color: var(--red); }

.qh-instock { display: inline-block; padding: 4px 10px; background: #eaf7ef; color: #17784d; font-size: 12.5px; font-weight: 700; }
.qh-lowstock { display: inline-block; padding: 4px 10px; background: #fff4e0; color: #9a6b00; font-size: 12.5px; }
.qh-nostock { color: var(--gray-2); font-size: 12.5px; }

/* 目录页 */
.qh-cat-count { color: var(--gray); font-size: 14px; margin: 0 0 18px; }
.qh-filters { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.qh-filters input, .qh-filters select {
  height: 44px; padding: 0 14px; border: 1px solid var(--line);
  background: #fff; font-family: inherit; font-size: 14px; color: var(--dark);
}
.qh-filters input { flex: 1 1 320px; }
.qh-filters input:focus, .qh-filters select:focus { outline: none; border-color: var(--red); }
.qh-table { width: 100%; border-collapse: collapse; background: #fff; }
.qh-table th {
  background: var(--line-2); color: var(--dark); text-align: left;
  padding: 12px 14px; font-size: 12px; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase; border-bottom: 2px solid var(--red);
}
.qh-table td { padding: 11px 14px; border-bottom: 1px solid var(--line-2); font-size: 13.5px; color: var(--gray); }
.qh-table td a { color: var(--dark); font-weight: 700; }
.qh-table td a:hover { color: var(--red); }
.qh-table .num { text-align: right; white-space: nowrap; }
.qh-pager { display: flex; align-items: center; gap: 14px; margin: 22px 0 10px; }
.qh-pager button {
  height: 40px; padding: 0 20px; border: 1px solid var(--line);
  background: #fff; font-family: inherit; font-size: 13px; cursor: pointer;
}
.qh-pager button:hover:not(:disabled) { border-color: var(--red); color: var(--red); }
.qh-pager button:disabled { opacity: .4; cursor: default; }
.qh-pager span { color: var(--gray-2); font-size: 13px; }

/* 口令门 */
.qh-gate { max-width: 520px; margin: 10px 0 26px; padding: 30px; border: 1px solid var(--line); background: var(--bg); border-top: 3px solid var(--red); }
.qh-gate__title { margin: 0 0 10px; font-size: 18px; }
.qh-gate p { color: var(--gray); font-size: 14px; margin: 0 0 16px; }
.qh-gate form { display: flex; gap: 10px; }
.qh-gate input { flex: 1; height: 44px; padding: 0 14px; border: 1px solid var(--line); font-family: inherit; font-size: 15px; }
.qh-gate input:focus { outline: none; border-color: var(--red); }
.qh-gate button { height: 44px; padding: 0 24px; border: 0; background: var(--red); color: #fff; font-family: inherit; font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; cursor: pointer; }
.qh-gate button:hover { background: var(--red-dark); }
.qh-gate__msg { color: var(--red); font-size: 13px; margin: 10px 0 0; min-height: 18px; }

/* 社交二维码 */
.qh-social { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; }
.qh-social__card { border: 1px solid var(--line); background: #fff; padding: 26px 22px; text-align: center; }
.qh-social__card img { width: 168px; height: 168px; margin: 0 auto 16px; }
.qh-social__card h3 { margin: 0 0 6px; font-size: 16px; }
.qh-social__card p { margin: 0 0 4px; color: var(--gray); font-size: 13.5px; }
.qh-social__card a { color: var(--red); }

/* 新闻 */
.qh-news-list { margin-top: 26px; border-top: 1px solid var(--line); }
.qh-news { display: grid; grid-template-columns: 110px 1fr auto; gap: 18px; align-items: center; padding: 22px 4px; border-bottom: 1px solid var(--line); }
.qh-news time { color: var(--gray-2); font-size: 12.5px; }
.qh-news b { color: var(--dark); font-size: 16px; font-weight: 700; }
.qh-news span { color: var(--red); font-size: 12.5px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; }
.qh-news:hover b { color: var(--red); }

/* 下载页 */
.qh-dl { display: grid; grid-template-columns: 300px 1fr; gap: 44px; align-items: start; }
.qh-dl__cover img { width: 100%; border: 1px solid var(--line); }
.qh-dl .h2-title { font-size: 24px; margin: 0 0 10px; }
.qh-dl__desc { color: var(--gray); margin: 0 0 18px; }
.qh-dl__facts { list-style: none; padding: 0; margin: 18px 0 24px; max-width: 460px; }
.qh-dl__facts li { display: flex; gap: 14px; padding: 10px 0; border-bottom: 1px solid var(--line-2); font-size: 13.5px; }
.qh-dl__facts span { width: 92px; color: var(--gray-2); }
.qh-dl__note { color: var(--gray-2); font-size: 12.5px; margin-top: 16px; }

/* 联系信息 */
.contacts__flex { display: grid !important; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 26px; }
.contacts__block { min-width: 0; display: flex; flex-direction: column; gap: 6px; }
.contacts__text { color: var(--gray-2); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 8px; }
.contacts__text-2 { color: var(--dark); font-size: 15px !important; font-weight: 700; line-height: 1.5 !important; white-space: normal !important; }
a.contacts__text-2:hover { color: var(--red); }

/* 品牌详情 */
.qh-brand-head { margin: 10px 0 24px; }
.qh-brand-head img { max-height: 64px; width: auto; }

/* ---------------- 页脚 ---------------- */
.footer { background: var(--dark); color: #b1aeae; padding: 40px 0 24px; font-size: 13px; }
.footer__flex { display: flex; align-items: center; justify-content: space-between; gap: 26px; flex-wrap: wrap; padding-bottom: 26px; border-bottom: 1px solid rgba(255,255,255,.12); }
.qh-logo-img-footer { height: 40px; filter: brightness(0) invert(1); }
.footer__list { display: flex; gap: 24px; margin: 0; padding: 0; list-style: none; flex-wrap: wrap; }
.footer__item a { color: #b1aeae; font-size: 12px; letter-spacing: .07em; text-transform: uppercase; }
.footer__item a:hover { color: #fff; }
.footer__flex-2 { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; padding-top: 20px; color: #75757a; font-size: 12px; }
.footer__flex-2 a { color: #75757a; }
.footer__flex-2 a:hover { color: #fff; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 1080px) {
  .hero__flex, .qh-stock__inner { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .catalog__grid, .qh-cats, .production__grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .about__flex { grid-template-columns: 1fr; gap: 30px; }
  .contacts__flex { grid-template-columns: repeat(2, minmax(0,1fr)) !important; }
  .header__form { display: none; }
}
@media (max-width: 720px) {
  .container, .container-big { width: calc(100% - 32px); }
  .hero__flex, .qh-stock__inner, .catalog__grid, .qh-cats, .production__grid, .qh-fams, .qh-social { grid-template-columns: 1fr; }
  .contacts__flex { grid-template-columns: 1fr !important; }
  .header__flex { flex-wrap: wrap; gap: 14px; }
  .header__contatcs { align-items: flex-start; }
  .menu__list { gap: 18px; }
  .qh-dl { grid-template-columns: 1fr; }
  .qh-news { grid-template-columns: 1fr; gap: 4px; }
  .catalog__card_wide { grid-column: auto; }
}

/* ELTECH 式左文右图 banner */
.qh-banner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: clamp(340px, 38vw, 480px);
  background: #fff;
}
.qh-banner__text {
  padding: 54px 56px;
  /* 左侧与 header 的 1220px 容器对齐，避免大屏下文字贴边、与 logo 错位 */
  padding-left: max(56px, calc((100vw - 1220px) / 2));
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}
.qh-banner__eyebrow {
  display: block;
  color: var(--red);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.qh-banner__text h1, .qh-banner__text h2 {
  color: var(--dark);
  font-size: clamp(24px, 2.7vw, 38px);
  line-height: 1.18;
  margin: 0 0 18px;
  letter-spacing: -.4px;
}
.qh-banner__text p {
  color: var(--gray);
  font-size: 14.5px;
  line-height: 1.65;
  max-width: 44ch;
  margin: 0 0 28px;
}
.qh-banner__img {
  border-left: 6px solid var(--red);
  background-size: cover;
  background-position: center;
}
@media (max-width: 900px) {
  .qh-banner { grid-template-columns: 1fr; }
  .qh-banner__text { padding: 36px 24px; }
  .qh-banner__img { min-height: 220px; border-left: 0; border-top: 5px solid var(--red); }
}
/* 首屏下方 4 栏说明条 */
.qh-strip { background: #fff; border-bottom: 1px solid var(--line); }
.qh-strip__grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); }
.qh-strip__item { padding: 26px 26px 26px 0; border-right: 1px solid var(--line-2); }
.qh-strip__item:last-child { border-right: 0; padding-right: 0; }
.qh-strip__item strong { display: block; color: var(--red); font-size: 16.5px; margin-bottom: 8px; }
.qh-strip__item p { color: var(--gray); font-size: 13px; line-height: 1.55; margin: 0; }
@media (max-width: 900px) { .qh-strip__grid { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 600px) { .qh-strip__grid { grid-template-columns: 1fr; } }

/* 首屏分页点 */
.hero__pagination { position: absolute; bottom: 14px; left: 0; right: 0; z-index: 4; display: flex; justify-content: center; gap: 8px; }
.hero__pagination .swiper-pagination-bullet { width: 26px; height: 3px; border-radius: 0; background: #cfcfcf; opacity: 1; }
.hero__pagination .swiper-pagination-bullet-active { background: var(--red); }
/* ELTECH 式二级页：左栏 + 右内容 */
.qh-layout { display: grid; grid-template-columns: 262px minmax(0, 1fr); gap: 46px; align-items: start; padding-bottom: 60px; }
.qh-main { min-width: 0; }
.qh-main .container { width: 100%; margin: 0; }
.qh-main .about { padding: 0 0 40px; }

.qh-side { padding-top: 26px; position: sticky; top: 16px; }
.qh-side__title {
  font-size: 15px; font-weight: 900; color: var(--dark);
  text-transform: uppercase; letter-spacing: .08em;
  padding: 0 0 12px; border-bottom: 2px solid var(--red); margin-bottom: 4px;
}
.qh-side__list { list-style: none; margin: 0 0 26px; padding: 0; }
.qh-side__list li { border-bottom: 1px solid var(--line-2); }
.qh-side__list a {
  display: block; padding: 11px 0 11px 14px; font-size: 13.5px; color: var(--gray);
  border-left: 2px solid transparent; transition: .16s;
}
.qh-side__list a:hover { color: var(--red); border-left-color: var(--red); background: var(--bg); }
.qh-side__list li.is-active a { color: var(--dark); font-weight: 700; border-left-color: var(--red); background: var(--bg); }

.qh-side__cta { background: var(--bg); border-top: 3px solid var(--red); padding: 22px 20px; }
.qh-side__cta b { display: block; font-size: 15px; color: var(--dark); margin-bottom: 8px; }
.qh-side__cta p { font-size: 12.5px; color: var(--gray); line-height: 1.55; margin: 0 0 16px; }
.qh-side__cta .qh-cta { display: block; text-align: center; padding: 11px 14px; font-size: 11.5px; }
.qh-side__cta small { display: block; margin-top: 14px; font-size: 12px; color: var(--gray-2); line-height: 1.6; }

@media (max-width: 980px) {
  .qh-layout { grid-template-columns: 1fr; gap: 26px; }
  .qh-side { position: static; padding-top: 10px; }
  .qh-side__list { display: flex; flex-wrap: wrap; gap: 0 18px; }
  .qh-side__list li { border-bottom: 0; }
  .qh-side__list a { padding: 8px 0; }
}
/* 左栏布局下，联系信息改成两列，避免挤压 */
.qh-main .contacts__flex { grid-template-columns: repeat(2, minmax(0,1fr)) !important; gap: 26px 32px; }
.qh-main .contacts__text-2 { font-size: 14.5px !important; }
.qh-main .contacts__block { max-width: 100%; }
@media (max-width: 720px) { .qh-main .contacts__flex { grid-template-columns: 1fr !important; } }.contacts__flex { margin-bottom: 34px; }
.contacts__text { display: block; }
.qh-main h2 { margin-top: 34px; }
.qh-main .about > .container > h2:first-child, .qh-main h2:first-of-type { margin-top: 0; }
/* 品牌墙网格 */
.qh-brandgrid { display: grid; grid-template-columns: repeat(6, minmax(0,1fr)); gap: 16px; margin: 30px 0 10px; }
.qh-bcard {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: #fff; border: 1px solid var(--line); padding: 20px 12px 16px; min-height: 130px;
  transition: border-color .2s, box-shadow .2s;
}
.qh-bcard img { width: 100%; height: 56px; object-fit: contain; margin-bottom: 12px; }
.qh-bcard span { font-size: 12px; font-weight: 700; letter-spacing: .05em; color: var(--dark); text-align: center; }
.qh-bcard small { font-size: 11px; color: var(--gray-2); margin-top: 2px; }
.qh-bcard:hover { border-color: var(--red); box-shadow: 0 10px 24px rgba(0,0,0,.07); }
.qh-bcard:hover span { color: var(--red); }
@media (max-width: 1100px) { .qh-brandgrid { grid-template-columns: repeat(4, minmax(0,1fr)); } }
@media (max-width: 720px)  { .qh-brandgrid { grid-template-columns: repeat(2, minmax(0,1fr)); } }
/* 白底 logo（ISCAR / KYOCERA / SUMITOMO）用深色卡片承载 */
.qh-bcard_dark { background: #14344f; border-color: #14344f; }
.qh-bcard_dark span { color: #fff; }
.qh-bcard_dark small { color: #9fb9cd; }
.qh-bcard_dark:hover { border-color: var(--red); }
.qh-bcard_dark:hover span { color: #fff; }
.production__swiper-block_dark { background: #14344f; border-color: #14344f; }
/* 分组版预览样式 */
.qh-bgroup { margin-top: 34px; }
.qh-bgroup__head { display: flex; align-items: baseline; gap: 14px; border-bottom: 2px solid var(--red); padding-bottom: 8px; margin-bottom: 18px; }
.qh-bgroup__range { font-size: 15px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; color: var(--dark); }
.qh-bgroup__count { font-size: 12px; color: var(--gray-2); letter-spacing: .05em; }
.qh-bgroup .qh-brandgrid { margin: 0; }
/* 品牌搜索 */
.qh-brandsearch { display: flex; align-items: center; gap: 16px; margin: 28px 0 0; }
.qh-brandsearch input {
  flex: 1 1 360px; max-width: 460px; height: 44px; padding: 0 16px;
  border: 1px solid var(--line); background: #fff; font-family: inherit; font-size: 14px; color: var(--dark);
}
.qh-brandsearch input:focus { outline: none; border-color: var(--red); }
#brandcount { color: var(--gray-2); font-size: 13px; }
.qh-brandempty { color: var(--gray); font-size: 14px; padding: 30px 0; }
/* 首页头部二维码（微信 / WhatsApp / 名片） */
.header__qr { display: flex; gap: 9px; margin-left: 16px; padding-left: 16px; border-left: 1px solid var(--line-2); }
.qh-qrmini { text-align: center; }
.qh-qrmini img {
  display: block; width: 74px; height: 74px; padding: 3px;
  background: #fff; border: 1px solid var(--line);
  transition: border-color .2s;
}
.qh-qrmini span {
  display: block; margin-top: 4px; font-size: 9.5px; font-weight: 700;
  letter-spacing: .05em; text-transform: uppercase; color: var(--gray-2);
}
.qh-qrmini:hover img { border-color: var(--red); }
.qh-qrmini:hover span { color: var(--red); }

/* 头部放不下时：中屏隐藏搜索框、小屏隐藏二维码 */
@media (max-width: 1180px) { .header__form { display: none; } }
@media (max-width: 900px) {
  .header__qr { display: none; }
  .header__contatcs { align-items: flex-start; }
}
/* 首页底部 "Connect with us" 二维码区 */
.qh-connect { background: var(--bg); padding: 56px 0 64px; }
.qh-connect .h2-title { margin-bottom: 8px; }
.qh-connect__lead { color: var(--gray); font-size: 14px; margin: 0 0 28px; }
.qh-connect .qh-social__card img { width: 168px; height: 168px; image-rendering: auto; }