/* ==========================================================================
   Plztech 官网 前台样式
   设计取向：现代简约 B 端工业风，白色 + 浅蓝为主色。以留白、细分隔线、
   克制的强调色建立专业感，不依赖任何第三方 CSS 框架或图标库，
   减少请求数与渲染阻塞。

   目录
     01 设计令牌与重置
     02 通用工具类
     03 按钮
     04 头部与导航
     05 首屏
     06 区块与网格
     07 产品卡片 / 分类卡片 / 特色卡 / 文章卡
     08 页面头部、面包屑、筛选栏、分页
     09 产品详情
     10 文章详情
     11 关于我们
     12 联系与询盘表单
     13 页脚与悬浮按钮
     14 404
     15 响应式
   ========================================================================== */

/* ---------------------------------------------------------------- 01 设计令牌 */

:root {
  /* 品牌色：清亮蓝。白底上可读、按钮上白字可读，hover 深一档 */
  --brand: #1e88e5;
  --brand-dark: #1567b8;
  --brand-deep: #0d4a8a;
  --brand-soft: #e8f3fd;
  --brand-softer: #f4fafe;
  --brand-line: #cfe4fa;

  --ink: #0f1b2a;
  --ink-2: #2a3947;
  --muted: #5b6b7c;
  --muted-2: #8b98a6;

  --line: #e3e9f1;
  --line-2: #edf1f7;
  --bg: #ffffff;
  --soft: #f5f8fc;
  --dark: #0c2340;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(15, 27, 42, .05);
  --shadow: 0 2px 4px rgba(15, 27, 42, .04), 0 10px 28px rgba(15, 27, 42, .07);

  --container: 1200px;
  --header-h: 72px;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
          Arial, "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 移动端视口高度用 dvh，避免地址栏收放导致的跳动 */
body.page-404 { min-height: 100dvh; display: flex; flex-direction: column; }

h1, h2, h3, h4 {
  margin: 0;
  color: var(--ink);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -.01em;
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--brand); }

img { max-width: 100%; height: auto; display: block; }

ul, ol { margin: 0; padding: 0; list-style: none; }

button { font: inherit; color: inherit; }

/* 键盘焦点必须可见 —— 可访问性底线，任何情况下不删除 */
:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------------------------------------------------------------- 02 工具类 */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: 12px 20px;
  background: var(--brand);
  color: #fff;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; color: #fff; }

.empty-state {
  padding: 64px 0;
  text-align: center;
  color: var(--muted);
}

.section-more { margin-top: 40px; text-align: center; }

/* 富文本（后台录入的正文） */
.rich-text { font-size: 16px; line-height: 1.8; color: var(--ink-2); }
.rich-text > *:first-child { margin-top: 0; }
.rich-text h2 { font-size: 22px; margin: 36px 0 14px; }
.rich-text h3 { font-size: 18px; margin: 30px 0 12px; }
.rich-text p { margin: 0 0 16px; }
.rich-text ul, .rich-text ol { margin: 0 0 18px; padding-left: 22px; }
.rich-text ul { list-style: disc; }
.rich-text ol { list-style: decimal; }
.rich-text li { margin-bottom: 8px; }
.rich-text a { color: var(--brand); text-decoration: underline; text-underline-offset: 3px; }
.rich-text img { border-radius: var(--radius); margin: 20px 0; }
.rich-text blockquote {
  margin: 22px 0;
  padding: 4px 0 4px 20px;
  border-left: 3px solid var(--brand);
  color: var(--muted);
}
.rich-text table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 15px; }
.rich-text th, .rich-text td { padding: 10px 12px; border: 1px solid var(--line); text-align: left; }
.rich-text th { background: var(--soft); font-weight: 600; }

/* ---------------------------------------------------------------- 03 按钮 */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color .18s ease, color .18s ease, border-color .18s ease;
}
.btn:focus-visible { outline-offset: 2px; }

.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); color: #fff; }

.btn-outline { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-outline:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-softer); }

.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { background: rgba(255, 255, 255, .88); color: var(--ink); }

.btn-ghost { background: transparent; color: var(--brand); border-color: var(--brand-line); }
.btn-ghost:hover { background: var(--brand-soft); color: var(--brand-dark); border-color: var(--brand); }

.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-lg { padding: 14px 30px; font-size: 16px; }
.btn-block { width: 100%; }

/* ---------------------------------------------------------------- 04 头部与导航 */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line-2);
  transition: box-shadow .2s ease;
}
.site-header.is-scrolled { box-shadow: var(--shadow-sm); }

.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: var(--header-h);
}

.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand:hover { color: inherit; }
.brand img { height: 34px; width: auto; }

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--brand);
  color: #fff;
  font-size: 19px;
  font-weight: 700;
}

.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-size: 18px; font-weight: 600; color: var(--ink); letter-spacing: -.01em; }
.brand-text small { font-size: 11px; color: var(--muted-2); letter-spacing: .01em; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 0 10px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 1.5px;
  background: var(--ink);
  transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.main-nav { flex: 1; }

.nav-list { display: flex; align-items: center; gap: 2px; }

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 9px 13px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  color: var(--ink-2);
  transition: background-color .16s ease, color .16s ease;
}
.nav-link:hover { background: var(--brand-softer); color: var(--brand-dark); }
.nav-link.is-active { color: var(--brand); font-weight: 500; }

.caret {
  width: 5px; height: 5px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
}

.has-children { position: relative; }
.sub-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 250px;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity .16s ease, transform .16s ease, visibility .16s;
}
.has-children:hover > .sub-menu,
.has-children:focus-within > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.sub-menu li { position: relative; }
.sub-menu a {
  display: block;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  color: var(--ink-2);
}
.sub-menu a:hover { background: var(--brand-softer); color: var(--brand); }
/* 二级子分类：参考站形式 —— 悬停一级分类时在右侧弹出二级面板 */
.sub-menu-2 {
  position: absolute;
  top: -9px; /* 对齐父面板内边距（8px）+ 边框（1px） */
  left: calc(100% + 10px);
  min-width: 210px;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-6px);
  transition: opacity .16s ease, transform .16s ease, visibility .16s;
}
.sub-menu li.has-sub > a::after {
  content: '\203A';
  float: right;
  margin-left: 10px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1;
}
.sub-menu li.has-sub:hover > .sub-menu-2,
.sub-menu li.has-sub:focus-within > .sub-menu-2 {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}
.sub-menu-2 a { font-size: 14px; padding: 8px 12px; color: var(--muted); }
.sub-menu-2 a:hover { color: var(--brand); }
.sub-menu-all a { color: var(--brand); font-weight: 500; }

.nav-mobile-extra { display: none; }

.header-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }

.lang-switch { position: relative; }
.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 12px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 14px;
  cursor: pointer;
}
.lang-btn:hover { border-color: var(--brand-line); color: var(--brand); }

.lang-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 160px;
  padding: 6px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity .16s ease, transform .16s ease, visibility .16s;
}
.lang-switch.is-open .lang-menu,
.lang-menu:hover { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-menu a { display: block; padding: 9px 12px; border-radius: var(--radius-sm); font-size: 14.5px; }
.lang-menu a:hover { background: var(--brand-softer); }
.lang-menu a.is-current { color: var(--brand); font-weight: 500; }

.flash {
  padding: 14px 0;
  font-size: 15px;
  border-bottom: 1px solid var(--line);
}
.flash-success { background: var(--brand-soft); color: var(--brand-deep); }
.flash-error { background: #fdecea; color: #a5321f; }
.flash-info { background: var(--soft); color: var(--ink-2); }

/* ---------------------------------------------------------------- 05 首屏 */

.hero {
  position: relative;
  overflow: hidden;
  background: var(--dark);
  color: #fff;
}

/* 明亮主题：无图首屏用「白 → 浅蓝」渐变 + 淡蓝网格，替代原来的深色底 */
.hero--plain {
  background: linear-gradient(180deg, #eaf4fe 0%, #f6fbff 62%, #ffffff 100%);
  color: var(--ink);
}
.hero--plain::before {
  /* 极淡的蓝色网格纹理建立"工业感"，避免大面积纯色显廉价 */
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30, 136, 229, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 136, 229, .07) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
/* 有背景图时不再整屏压暗色蒙版（灰蒙版挡图显脏，已按反馈去掉）。
   仅保留底部一道白色渐隐与下方浅色区块衔接；具体各 hero 变体可覆盖。 */
.hero--image::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 38%;
  background: linear-gradient(0deg,
    rgba(255, 255, 255, .96) 0%,
    rgba(255, 255, 255, .72) 34%,
    rgba(255, 255, 255, 0) 100%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding: 104px 24px 112px;
  max-width: 760px;
}

/* 装饰：品牌光晕 + 细网格，给首屏增加层次与"工业感" */
.hero-glow {
  position: absolute;
  top: -28%;
  right: -8%;
  width: 58%;
  height: 130%;
  background: radial-gradient(closest-side, rgba(30, 136, 229, .5), transparent 70%);
  filter: blur(8px);
  pointer-events: none;
  z-index: 0;
}
.hero--plain .hero-glow { background: radial-gradient(closest-side, rgba(30, 136, 229, .32), transparent 70%); }
.hero-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .07) 1px, transparent 1px);
  background-size: 52px 52px;
}

/* 首屏信任数据条 */
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 36px;
  margin: 46px 0 0;
  padding: 0;
  list-style: none;
}
.hero-stats li { display: flex; flex-direction: column; gap: 2px; }
.hero-stats strong { font-size: 22px; font-weight: 700; letter-spacing: -.01em; color: #fff; line-height: 1.2; }
.hero-stats span { font-size: 12.5px; color: rgba(255, 255, 255, .72); }
.hero--plain .hero-stats strong { color: var(--brand-deep); }
.hero--plain .hero-stats span { color: var(--muted); }

.hero--about .hero-inner { padding-top: 64px; padding-bottom: 72px; max-width: 100%; }

.hero-eyebrow {
  margin: 0 0 16px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #8ec9f5;
}
/* 明亮首屏上的眉题用品牌深蓝，保证与白底对比度 */
.hero--plain .hero-eyebrow { color: var(--brand-dark); }

.hero-title {
  font-size: clamp(30px, 4.4vw, 50px);
  color: #fff;
  line-height: 1.16;
  letter-spacing: -.02em;
}
.hero--plain .hero-title { color: var(--ink); }

.hero-text {
  margin: 20px 0 0;
  max-width: 620px;
  font-size: 17px;
  line-height: 1.75;
  color: rgba(255, 255, 255, .76);
}
.hero--plain .hero-text { color: var(--muted); }

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero--plain .btn-outline { color: var(--ink); border-color: var(--line); background: rgba(255, 255, 255, .6); }
.hero--plain .btn-outline:hover { border-color: var(--brand); color: var(--brand); background: #fff; }
/* 有图首屏的描边按钮样式见首页专属规则（.hero--home.hero--image .btn-outline） */

/* ---------------------------------------------------------------- 06 区块与网格 */

.section { padding: 84px 0; }
.section-alt { background: var(--soft); }

.section-head { max-width: 680px; margin-bottom: 44px; }
.section-title { font-size: clamp(23px, 2.6vw, 31px); }
.section-sub { margin: 12px 0 0; font-size: 16px; color: var(--muted); }

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}
.feature-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

/* ---------------------------------------------------------------- 07 卡片 */

.product-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.product-card:hover {
  border-color: var(--brand-line);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.product-card-media {
  position: relative;
  display: block;
  aspect-ratio: 1 / 1;
  background: #fff;
  border-bottom: 1px solid var(--line-2);
  overflow: hidden;
}
.product-card-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 18px;
  transition: transform .4s ease;
}
.product-card:hover .product-card-media img { transform: scale(1.04); }

.tag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .06em;
  background: var(--brand);
  color: #fff;
}

.product-card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 20px;
  gap: 10px;
}

.product-card-title { font-size: 16.5px; line-height: 1.4; }
.product-card-title a:hover { color: var(--brand); }

.product-card-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-2);
  font-size: 12.5px;
}
.product-card-meta > div { display: flex; gap: 6px; }
.product-card-meta dt { color: var(--muted-2); }
.product-card-meta dd { margin: 0; color: var(--ink-2); font-weight: 500; }

.product-card-link {
  margin-top: auto;
  padding-top: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--brand);
}

.category-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.category-card:hover {
  border-color: var(--brand-line);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.category-card-media { display: block; aspect-ratio: 16 / 10; background: var(--soft); overflow: hidden; }
.category-card-media img { width: 100%; height: 100%; object-fit: cover; }
.category-card-body { display: flex; flex-direction: column; gap: 8px; padding: 22px; }
.category-card-title { font-size: 17px; }
.category-card-desc { font-size: 14px; line-height: 1.65; color: var(--muted); }
.category-card-count { font-size: 12.5px; color: var(--muted-2); }

.feature-card {
  position: relative;
  padding: 28px 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.section-alt .feature-card { border-color: var(--line); }
.feature-index {
  display: block;
  margin-bottom: 14px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--brand);
}
.feature-title { font-size: 17px; margin-bottom: 10px; }
.feature-text { margin: 0; font-size: 14.5px; line-height: 1.7; color: var(--muted); }

.news-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.news-card:hover {
  border-color: var(--brand-line);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.news-card-media { display: block; aspect-ratio: 16 / 9; background: var(--soft); overflow: hidden; }
.news-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.news-card:hover .news-card-media img { transform: scale(1.04); }
.news-card-body { display: flex; flex-direction: column; gap: 10px; padding: 22px; flex: 1; }
.news-card.is-text-only .news-card-body { padding: 24px; }
.news-card-meta {
  display: flex;
  gap: 14px;
  margin: 0;
  font-size: 12.5px;
  color: var(--muted-2);
}
.news-card-title { font-size: 17px; line-height: 1.45; }
.news-card-title a:hover { color: var(--brand); }
.news-card-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-link { margin-top: auto; padding-top: 8px; font-size: 14px; font-weight: 500; color: var(--brand); }

.cta-band { background: var(--brand); color: #fff; padding: 62px 0; }
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-title { color: #fff; font-size: clamp(21px, 2.4vw, 28px); }
.cta-text { margin: 12px 0 0; max-width: 560px; color: rgba(255, 255, 255, .82); font-size: 15.5px; line-height: 1.7; }

/* ---------------------------------------------------------------- 08 页面头 / 面包屑 / 筛选 / 分页 */

.page-hero {
  padding: 44px 0 40px;
  background: var(--soft);
  border-bottom: 1px solid var(--line);
}
.page-title { font-size: clamp(26px, 3.2vw, 38px); }
.page-intro { margin: 14px 0 0; max-width: 700px; font-size: 16px; color: var(--muted); }

.page-banner { position: relative; background: var(--dark); overflow: hidden; }
.page-banner-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.page-banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(12, 35, 64, .9) 0%, rgba(12, 35, 64, .62) 55%, rgba(12, 35, 64, .42) 100%);
}
.page-banner--default {
  background: radial-gradient(120% 140% at 85% 0%, #1e88e5 0%, #0d3a68 48%, #0c2340 100%);
}
.page-banner-glow {
  position: absolute;
  right: -8%;
  top: -42%;
  width: 55%;
  height: 150%;
  background: radial-gradient(closest-side, rgba(255, 255, 255, .22), transparent 70%);
  pointer-events: none;
}
.page-banner-inner { position: relative; z-index: 1; padding: 80px 24px 72px; max-width: 760px; }
.page-banner .page-title { color: #fff; text-shadow: 0 1px 18px rgba(0, 0, 0, .25); }
.page-banner .page-intro { color: rgba(255, 255, 255, .85); }
.page-banner .breadcrumb a,
.page-banner .breadcrumb li { color: rgba(255, 255, 255, .72); }
.page-banner .breadcrumb [aria-current="page"] { color: #fff; }

.page-body { padding-top: 46px; padding-bottom: 88px; }

.breadcrumb { margin-bottom: 18px; font-size: 13.5px; }
.breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.breadcrumb li { display: flex; align-items: center; gap: 8px; color: var(--muted); }
.breadcrumb li + li::before { content: "/"; color: var(--muted-2); }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--brand); }
.breadcrumb [aria-current="page"] { color: var(--ink-2); }
.page-banner .breadcrumb li,
.page-banner .breadcrumb a { color: rgba(255, 255, 255, .68); }
.page-banner .breadcrumb [aria-current="page"] { color: #fff; }
.hero--about .breadcrumb li,
.hero--about .breadcrumb a { color: rgba(255, 255, 255, .68); }
.hero--about .breadcrumb [aria-current="page"] { color: #fff; }

.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 34px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.filter-list { display: flex; flex-wrap: wrap; gap: 6px; }
.filter-link {
  display: inline-block;
  padding: 8px 15px;
  border-radius: 20px;
  font-size: 14px;
  color: var(--muted);
  background: var(--soft);
  transition: background-color .16s ease, color .16s ease;
}
.filter-link:hover { color: var(--brand-dark); background: var(--brand-soft); }
.filter-link.is-active { background: var(--brand); color: #fff; }

.sort-form { display: flex; align-items: center; gap: 9px; }
.sort-label { font-size: 13.5px; color: var(--muted-2); }
.sort-form select {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  font-size: 14px;
  color: var(--ink-2);
  cursor: pointer;
}

.category-intro {
  margin-bottom: 36px;
  padding: 22px 24px;
  background: var(--soft);
  border-radius: var(--radius);
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 52px;
  flex-wrap: wrap;
}
.page-numbers { display: flex; gap: 6px; }
.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--ink-2);
  transition: border-color .16s ease, background-color .16s ease, color .16s ease;
}
.page-link:hover { border-color: var(--brand); color: var(--brand); }
.page-link.is-current { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 500; }
.page-link.is-disabled { color: var(--muted-2); border-color: var(--line-2); cursor: not-allowed; }
.page-ellipsis { display: inline-flex; align-items: center; justify-content: center; width: 32px; color: var(--muted-2); }

/* ---------------------------------------------------------------- 09 产品详情 */

.product-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 52px;
  margin-bottom: 72px;
}

.gallery-main {
  margin: 0;
  aspect-ratio: 1 / 1;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.gallery-main img { width: 100%; height: 100%; object-fit: contain; padding: 20px; box-sizing: border-box; }

.gallery-thumbs {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  overflow-x: auto;
  padding-bottom: 4px;
}
.gallery-thumb {
  flex-shrink: 0;
  width: 84px;
  height: 84px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  overflow: hidden;
  cursor: pointer;
  transition: border-color .16s ease;
}
.gallery-thumb img { width: 100%; height: 100%; object-fit: contain; padding: 6px; box-sizing: border-box; }
.gallery-thumb:hover { border-color: var(--brand-line); }
.gallery-thumb.is-active { border-color: var(--brand); border-width: 2px; }

.product-category { margin: 0 0 12px; font-size: 13.5px; }
.product-category a { color: var(--brand); font-weight: 500; }

.product-title { font-size: clamp(24px, 2.8vw, 33px); margin-bottom: 16px; }
.product-lead { font-size: 17px; line-height: 1.75; color: var(--muted); margin-bottom: 26px; }

.product-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 30px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.product-facts > div { padding: 14px 18px; background: #fff; }
.product-facts dt { font-size: 12.5px; color: var(--muted-2); margin-bottom: 3px; }
.product-facts dd { margin: 0; font-size: 15px; font-weight: 500; color: var(--ink); }

.product-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.product-block { margin-top: 56px; }
.block-title {
  font-size: 21px;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.block-title small { margin-left: 10px; font-size: 13px; font-weight: 400; color: var(--muted-2); }

.spec-table-wrap { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.spec-table tr + tr { border-top: 1px solid var(--line-2); }
.spec-table th {
  width: 34%;
  padding: 14px 20px;
  text-align: left;
  font-weight: 500;
  color: var(--muted);
  background: var(--soft);
  vertical-align: top;
}
.spec-table td { padding: 14px 20px; color: var(--ink-2); }

.product-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
  margin-top: 56px;
  padding: 32px;
  background: var(--brand-softer);
  border: 1px solid var(--brand-line);
  border-radius: var(--radius-lg);
}
.product-cta .block-title { border: 0; padding: 0; margin-bottom: 8px; }
.product-cta p { margin: 0; max-width: 620px; font-size: 15px; color: var(--muted); }

/* ---------------------------------------------------------------- 10 文章详情 */

.article-detail { max-width: 820px; margin: 0 auto; }

.article-head { margin-bottom: 28px; }
.article-title { font-size: clamp(26px, 3.4vw, 40px); line-height: 1.22; margin-bottom: 18px; }
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 0;
  font-size: 13.5px;
  color: var(--muted-2);
}
.article-meta a { color: var(--brand); }

.article-cover { margin: 0 0 34px; border-radius: var(--radius); overflow: hidden; }
.article-cover img { width: 100%; height: auto; }

.article-lead {
  margin: 0 0 30px;
  padding-left: 20px;
  border-left: 3px solid var(--brand);
  font-size: 17.5px;
  line-height: 1.8;
  color: var(--muted);
}

.article-foot { margin-top: 52px; padding-top: 28px; border-top: 1px solid var(--line); }

.article-share { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; font-size: 14px; }
.article-share > span { color: var(--muted-2); }
.article-share a {
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 20px;
  font-size: 13.5px;
}
.article-share a:hover { border-color: var(--brand); color: var(--brand); }

.article-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}
.article-nav-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .16s ease;
}
.article-nav-link:hover { border-color: var(--brand); }
.article-nav-link.an-next { text-align: right; }
.an-label { font-size: 12.5px; color: var(--muted-2); }
.an-title { font-size: 14.5px; font-weight: 500; color: var(--ink); }

.article-related, .article-cta { margin-top: 60px; }

/* ---------------------------------------------------------------- 11 关于我们 */

.about-story {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}
.about-story .section-title { margin-bottom: 24px; }
.about-story-media { margin: 0; border-radius: var(--radius); overflow: hidden; background: var(--soft); }

/* ---------------------------------------------------------------- 12 联系与询盘 */

.contact-layout, .inquiry-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr);
  gap: 48px;
  align-items: start;
}
.inquiry-layout { grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); }

.contact-list { display: flex; flex-direction: column; gap: 20px; }
.contact-list li { display: flex; flex-direction: column; gap: 3px; font-size: 15px; }
.contact-label { font-size: 12.5px; letter-spacing: .04em; text-transform: uppercase; color: var(--muted-2); }
.contact-list a { color: var(--ink); }
.contact-list a:hover { color: var(--brand); }

.map-embed { margin-top: 28px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.map-embed iframe { display: block; width: 100%; border: 0; }

.side-note {
  margin-top: 30px;
  padding: 22px;
  background: var(--soft);
  border-radius: var(--radius);
}
.side-note h3 { font-size: 16px; margin-bottom: 8px; }
.side-note p { margin: 0; font-size: 14.5px; line-height: 1.7; color: var(--muted); }

.inquiry-form { display: flex; flex-direction: column; gap: 20px; }

.form-row { display: grid; gap: 20px; }
.form-row-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.form-field { display: flex; flex-direction: column; gap: 7px; }
.form-field label { font-size: 14px; font-weight: 500; color: var(--ink-2); }
.req { color: #c0392b; }

.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="search"],
.form-field textarea,
.form-field select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  font: inherit;
  font-size: 15px;
  color: var(--ink);
  transition: border-color .16s ease, box-shadow .16s ease;
}
.form-field textarea { resize: vertical; min-height: 130px; line-height: 1.7; }
.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(30, 136, 229, .14);
}
.form-field input[type="file"] { font-size: 14px; padding: 10px 0; }

.field-hint { margin: 0; font-size: 12.5px; color: var(--muted-2); }

.captcha-row { display: flex; align-items: center; gap: 12px; }
.captcha-question {
  flex-shrink: 0;
  padding: 11px 16px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: .04em;
  white-space: nowrap;
}

/* 蜜罐字段：用定位移出可视区，而不是 display:none —— 后者会被部分爬虫识别 */
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form-actions { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; margin-top: 4px; }
.form-note { margin: 0; max-width: 480px; font-size: 13.5px; line-height: 1.6; color: var(--muted-2); }

.form-feedback {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  line-height: 1.6;
}
.form-feedback.is-success { background: var(--brand-soft); color: var(--brand-deep); }
.form-feedback.is-error { background: #fdecea; color: #a5321f; }

/* ---------------------------------------------------------------- 弹窗 */

body.modal-open { overflow: hidden; }

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(12, 35, 64, .55);
  backdrop-filter: blur(3px);
  opacity: 1;
  transition: opacity .2s ease;
}
.modal-overlay[hidden] { display: none; }

.modal-box {
  width: 100%;
  max-width: 460px;
  padding: 40px 36px 32px;
  text-align: center;
  background: #fff;
  border-radius: var(--radius-md, 16px);
  box-shadow: 0 24px 64px rgba(12, 35, 64, .28);
  animation: modalIn .32s cubic-bezier(.22, 1, .36, 1) both;
}
@keyframes modalIn {
  from { transform: translateY(18px) scale(.96); opacity: 0; }
  to   { transform: translateY(0) scale(1); opacity: 1; }
}

.modal-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  margin-bottom: 18px;
  color: var(--brand, #1e88e5);
  background: var(--brand-soft, #e8f3fd);
  border-radius: 50%;
}
.modal-icon svg { width: 32px; height: 32px; }

.modal-title {
  margin: 0 0 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--dark, #0c2340);
}

.modal-text {
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted-2, #5b6676);
}

.modal-box .btn { min-width: 140px; }

@media (max-width: 480px) {
  .modal-box { padding: 32px 22px 26px; }
}

.search-form-inline {
  display: flex;
  gap: 10px;
  margin-top: 24px;
  max-width: 520px;
}
.search-form-inline input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 15px;
  background: #fff;
}
.search-form-inline input:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(30, 136, 229, .14);
}

.search-block { margin-bottom: 64px; }

/* ---------------------------------------------------------------- 13 页脚 */

.site-footer { background: var(--dark); color: rgba(255, 255, 255, .68); padding: 66px 0 28px; font-size: 14.5px; }

.footer-grid {
  display: grid;
  /* --footer-cols 由页脚按实际栏数内联输出（产品分类栏/联系方式栏可隐藏）；
     媒体查询里直接覆盖 grid-template-columns，不受该变量影响 */
  grid-template-columns: var(--footer-cols, 1.6fr 1fr 1fr 1.3fr);
  gap: 44px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.footer-title { font-size: 14px; color: #fff; margin-bottom: 18px; letter-spacing: .02em; }
.footer-text { margin: 0; line-height: 1.75; }
.footer-logo { display: block; height: 30px; width: auto; margin-bottom: 16px; }

.footer-social { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 18px; }
.footer-social a { font-size: 13.5px; color: rgba(255, 255, 255, .68); }
.footer-social a:hover { color: #fff; }

.footer-links { display: flex; flex-direction: column; gap: 11px; }
.footer-links a { color: rgba(255, 255, 255, .68); }
.footer-links a:hover { color: #fff; }

.footer-contact { display: flex; flex-direction: column; gap: 16px; }
.footer-contact li { display: flex; flex-direction: column; gap: 3px; }
.fc-label { font-size: 12px; letter-spacing: .05em; text-transform: uppercase; color: rgba(255, 255, 255, .42); }
.footer-contact a { color: rgba(255, 255, 255, .82); }
.footer-contact a:hover { color: #fff; }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding-top: 26px;
  font-size: 13.5px;
}
.footer-copy { margin: 0; color: rgba(255, 255, 255, .48); }
.footer-langs { display: flex; gap: 16px; }
.footer-langs a { color: rgba(255, 255, 255, .58); }
.footer-langs a:hover, .footer-langs a[aria-current="true"] { color: #fff; }

.whatsapp-fab {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  box-shadow: 0 6px 20px rgba(37, 211, 102, .38);
  transition: transform .18s ease;
}
.whatsapp-fab:hover { transform: scale(1.06); color: #fff; }

/* ---------------------------------------------------------------- 14 404 */

body.page-404 { background: var(--soft); }
.error-page { flex: 1; display: grid; place-items: center; padding: 80px 0; }
.error-inner { max-width: 620px; text-align: center; }
.error-code {
  margin: 0 0 8px;
  font-size: clamp(72px, 14vw, 130px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.04em;
  color: transparent;
  -webkit-text-stroke: 1.5px #b9d3ee;
}
.error-title { font-size: clamp(22px, 3vw, 30px); margin-bottom: 14px; }
.error-text { font-size: 16px; line-height: 1.75; color: var(--muted); }
.error-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin-top: 30px; }
.error-inner .search-form-inline { margin: 34px auto 0; }

/* ---------------------------------------------------------------- 15 响应式 */

@media (max-width: 1080px) {
  .product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 36px; }
  .product-layout { gap: 36px; }
  .contact-layout, .inquiry-layout { grid-template-columns: 1fr; gap: 40px; }
  .about-story { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 900px) {
  :root { --header-h: 64px; }

  .nav-toggle { display: flex; order: 3; margin-left: auto; }

  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99;
    display: none;
    padding: 20px 24px 40px;
    background: #fff;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .main-nav.is-open { display: block; }

  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-list > li { border-bottom: 1px solid var(--line-2); }
  .nav-link { padding: 15px 4px; font-size: 16px; border-radius: 0; }
  .nav-link:hover { background: transparent; }

  .caret { margin-left: auto; }

  .sub-menu, .sub-menu-2 {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 0;
    padding: 0 0 10px 12px;
    min-width: 0;
    display: none;
  }
  .has-children:hover > .sub-menu { display: none; }
  .has-children.is-expanded > .sub-menu { display: block; }
  .has-children.is-expanded .sub-menu-2 { display: block; }
  .sub-menu li.has-sub > a::after { content: none; }
  .sub-menu a { padding: 11px 4px; }

  .nav-mobile-extra { display: flex; flex-direction: column; gap: 10px; margin-top: 24px; }

  .header-actions { margin-left: 0; }
  .header-cta { display: none; }

  .hero-inner { padding: 68px 24px 76px; }
  .section { padding: 60px 0; }
  .page-hero { padding: 32px 0 30px; }
  .page-body { padding-top: 34px; padding-bottom: 64px; }

  .product-grid, .category-grid, .news-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-layout { grid-template-columns: 1fr; }
  .article-nav { grid-template-columns: 1fr; }
  .article-nav-link.an-next { text-align: left; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 600px) {
  .container { padding: 0 18px; }

  .brand-text small { display: none; }

  .product-grid, .category-grid, .news-grid, .feature-grid, .feature-grid-3 {
    grid-template-columns: 1fr;
  }

  .form-row-2 { grid-template-columns: 1fr; }

  .filter-bar { flex-direction: column; align-items: stretch; }
  .filter-list { overflow-x: auto; flex-wrap: nowrap; padding-bottom: 4px; }
  .filter-link { white-space: nowrap; }

  .product-facts { grid-template-columns: 1fr; }
  .spec-table th { width: 42%; padding: 12px 14px; }
  .spec-table td { padding: 12px 14px; }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }

  .search-form-inline { flex-direction: column; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }

  .whatsapp-fab { right: 16px; bottom: 16px; width: 50px; height: 50px; }

  .product-cta { padding: 24px; }
  .captcha-row { flex-wrap: wrap; }
}

/* 尊重用户的减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
  /* 入场动效整体关停：内容直接可见，不做位移 */
  [data-reveal] { opacity: 1 !important; transform: none !important; transition: none !important; }
}

/* ==========================================================================
   16  首页 v23 重排（明亮科技风 / 编辑式节奏）
   与全站同一套品牌令牌：白 + 浅蓝，品牌蓝 #1e88e5，深海军蓝 #0c2340。
   本轮只重排节奏与布局族，不换色、不改信息架构、不改数据源：
     0) 全页仅 2 个眉题（hero 品牌条 + BEST SELLERS）；区块头统一为
        「左标题 + 右真实链接/控件」，去掉每区末尾重复的居中按钮
     1) 实力数据带从工厂区底部提升到首屏正下方（trust strip）
     2) 分类：不对称马赛克（1 大特位 2×2 + 紧凑位），不再是 4+1 孤行
     3) 热销：分页轮播，翻页控件并入标题行右侧
     4) 场景：有图 = 马赛克画廊（首图 2×2），无图 = 双栏编辑式列表
     5) 收尾：浅蓝 CTA 带 + 全宽深色工厂媒体带（衔接深色页脚）
     6) 一次性 scroll-reveal 入场动效（JS 门控，任何环节失效内容仍可见）
   ========================================================================== */

/* ----------------------------- 0. scroll-reveal 入场动效 -----------------------------
   <head> 的内联脚本给 <html> 加 .reveal-ready（首帧前生效，无闪烁）；
   main.js 的 scrollReveal 模块初始化成功后加 .reveal-done。
   兜底：内联脚本 1.2s 后若未见 .reveal-done（main.js 没加载），
   直接把所有 [data-reveal] 补上 .is-inview；偏好减少动效时 CSS 强制可见。 */
.reveal-ready [data-reveal] { opacity: 0; transform: translateY(18px); }
.reveal-ready [data-reveal].is-inview {
  opacity: 1;
  transform: none;
  transition: opacity .6s ease, transform .6s cubic-bezier(.22, .61, .36, 1);
  transition-delay: calc(var(--i, 0) * 70ms);
}

/* 通用眉题（全页仅热销区使用；关于页等页面复用） */
.eyebrow {
  display: inline-block;
  margin: 0 0 14px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--brand-dark);
}

/* ----------------------------- 1. HERO（Giant / 底部左对齐） ----------------------------- */
.hero--home {
  min-height: clamp(560px, 90vh, 900px);
  display: flex;
  align-items: flex-end;
}
.hero--home .hero-inner {
  width: 100%;
  max-width: var(--container);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
  padding-top: 120px;
  padding-bottom: 84px;
}
.hero--home .hero-copy { max-width: 660px; flex: 1 1 auto; }
/* 有背景图时：不再整屏压暗色蒙版（老板反馈灰蒙版挡图、显脏）。
   改为仅在 hero 底部留一道白色渐隐，让大图与下方白色区块柔和衔接；
   图片主体（上 2/3）完全干净展示。 */
.hero--home.hero--image::after {
  top: auto;
  height: 38%;
  background: linear-gradient(0deg,
    rgba(255, 255, 255, .96) 0%,
    rgba(255, 255, 255, .72) 34%,
    rgba(255, 255, 255, 0) 100%);
}
/* 没有暗色蒙版托底，首屏文案一律用深色，保证压在浅色产品图上仍可读 */
.hero--home.hero--image .hero-eyebrow { color: var(--brand-dark); }
.hero--home.hero--image .hero-title { color: var(--ink); }
.hero--home.hero--image .hero-text { color: var(--muted); }
.hero--home.hero--image .btn-outline {
  color: var(--ink);
  border-color: var(--line);
  background: rgba(255, 255, 255, .78);
  backdrop-filter: blur(4px);
}
.hero--home.hero--image .btn-outline:hover { background: #fff; border-color: var(--brand); color: var(--brand); }
.hero--home.hero--image .hero-stats {
  background: rgba(255, 255, 255, .78);
  border-color: rgba(255, 255, 255, .9);
}
.hero--home.hero--image .hero-stats strong { color: var(--brand-deep); }
.hero--home.hero--image .hero-stats span { color: var(--muted); }
/* 浮动产品特写（右下角） */
.hero-float {
  flex: none;
  width: 260px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 12px;
  transform: translateY(22px);
  text-decoration: none;
  transition: transform .25s ease, box-shadow .25s ease;
}
.hero-float:hover { transform: translateY(14px); box-shadow: 0 14px 40px rgba(15, 27, 42, .18); }
.hero-float img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: linear-gradient(135deg, var(--brand-soft), #fff);
  border-radius: var(--radius);
}
.hero-float-tag { display: block; margin-top: 10px; font-size: 13px; font-weight: 600; color: var(--ink-2); }
/* v25：每张轮播各自引用产品时，产品小卡放进 .hero-floats 容器按 slide 切换 */
.hero-floats { flex: none; }
.hero-floats .hero-float { display: none; }
.hero-floats .hero-float.is-active { display: block; animation: heroCopyIn .5s ease both; }

/* ----------------------------- 1b. 首页 Hero 多图轮播（v21） -----------------------------
   后台「轮播图 → 首页」传多张时：底图淡入淡出 + 文案随图切换 + 箭头 / 圆点。
   只有一张时（.hero--carousel 不存在）外观与原来完全一致。 */
.hero-slides { position: absolute; inset: 0; z-index: 0; }
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .8s ease;
  pointer-events: none;
}
.hero-slide.is-active { opacity: 1; }
.hero-slide .hero-bg { width: 100%; height: 100%; object-fit: cover; }

/* 文案块同样按 slide 切换，非激活的块不可交互、不占视觉 */
.hero-copy { position: relative; }
.hero-copy-slide { display: none; }
.hero-copy-slide.is-active { display: block; animation: heroCopyIn .5s ease both; }
@keyframes heroCopyIn {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

/* v25：右侧两个圆形箭头已按老板要求取消（保留圆点 + 自动轮播 + 键盘左右键），
   .hero-nav / .hero-arrow 样式一并删除。 */

/* 圆点（左下角，挨着文案） */
.hero-dots {
  position: absolute;
  left: 24px;
  bottom: 28px;
  z-index: 3;
  display: flex;
  gap: 9px;
}
.hero-dot {
  width: 9px;
  height: 9px;
  padding: 0;
  cursor: pointer;
  border: none;
  border-radius: 50%;
  background: rgba(13, 74, 138, .3);
  transition: width .25s ease, background .25s ease;
}
.hero-dot.is-active { width: 26px; border-radius: 5px; background: var(--brand); }
.hero-dot:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }
/* 无图首屏（浅色底）上：圆点同样深色（保留选择器供语义区分） */
.hero--plain .hero-dot { background: rgba(13, 74, 138, .3); }
.hero--plain .hero-dot.is-active { background: var(--brand); }
.hero--plain .hero-dot:focus-visible { outline-color: var(--brand); }

@media (max-width: 720px) {
  .hero-dots { left: 16px; bottom: 16px; }
}

/* ----------------------------- 2. 区块头：左标题 + 右链接/控件 -----------------------------
   取代旧版「眉题 + 标题 + 副标题」居中/左齐 + 区块末尾居中按钮的 templated 结构。 */
.sec-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 38px;
}
.sec-head-text { max-width: 660px; }
.sec-title {
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--ink);
}
.sec-sub { margin: 10px 0 0; font-size: 15.5px; line-height: 1.65; color: var(--muted); }
.link-arrow {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding-bottom: 5px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--brand-dark);
  white-space: nowrap;
}
.link-arrow:hover { color: var(--brand); }
.link-arrow span { transition: transform .2s ease; }
.link-arrow:hover span { transform: translateX(3px); }

/* ----------------------------- 3. 实力数据带（首屏正下方的信任条） ----------------------------- */
.stat-band {
  padding: 46px 0;
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stat-band-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}
.stat-band-item { position: relative; padding: 0 12px; text-align: center; }
.stat-band-item + .stat-band-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 1px;
  height: 46px;
  transform: translateY(-50%);
  background: var(--line);
}
.stat-band-value {
  display: block;
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.1;
  color: var(--brand-deep);
}
.stat-band-label { display: block; margin-top: 7px; font-size: 13.5px; color: var(--muted); }

/* ----------------------------- 4. 产品分类：不对称马赛克 -----------------------------
   5 个及以上分类：1 个大特位（跨 2 列 2 行）+ 紧凑位；不足 5 个退化为等宽网格。
   紧凑位填不满网格时，末尾补一个品牌渐变瓦片（无链接，避免重复 CTA）。 */
.cat-mosaic {
  display: grid;
  grid-template-columns: repeat(var(--cat-cols, 4), minmax(0, 1fr));
  grid-auto-rows: 1fr;
  gap: 18px;
}
.cat-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  text-decoration: none;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: box-shadow .22s ease, transform .22s ease, border-color .22s ease;
}
.cat-tile:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: var(--brand-line); }
.cat-tile-media {
  display: block;
  aspect-ratio: 4 / 3;
  background: linear-gradient(180deg, var(--brand-softer), #fff);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.cat-tile-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 16px;
  box-sizing: border-box;
}
/* 没传分类图：品牌渐变 + 首字母，比灰色破图干净 */
.cat-tile-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 46px;
  font-weight: 800;
  letter-spacing: -.02em;
  color: rgba(255, 255, 255, .94);
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-deep) 60%, var(--dark) 100%);
}
.cat-tile-body { display: flex; flex: 1; flex-direction: column; gap: 6px; padding: 14px 16px 16px; }
.cat-tile-name { font-size: 15.5px; font-weight: 700; line-height: 1.35; }
.cat-tile-desc {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
}
.cat-tile-count { margin-top: auto; padding-top: 2px; font-size: 12px; font-weight: 600; color: var(--brand-dark); }
.cat-tile-count--empty { color: var(--muted-2); font-weight: 500; }

/* 大特位：跨 2 列 2 行 */
.cat-tile--lead { grid-column: span 2; grid-row: span 2; }
.cat-tile--lead .cat-tile-media { aspect-ratio: 16 / 10; }
.cat-tile--lead .cat-tile-media img { padding: 30px; }
.cat-tile--lead .cat-tile-body { gap: 8px; padding: 20px 24px 24px; }
.cat-tile--lead .cat-tile-name { font-size: 21px; }
.cat-tile--lead .cat-tile-desc { font-size: 14px; -webkit-line-clamp: 3; }
.cat-tile--lead .cat-tile-count { font-size: 13px; }
.cat-tile--lead .cat-tile-empty { font-size: 76px; }

/* 补位瓦片：品牌渐变 + 站点口号（PHP 按空格数写 .cat-span-N） */
.cat-tile-filler {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  gap: 6px;
  padding: 20px 22px;
  color: #fff;
  background: linear-gradient(150deg, var(--brand-deep) 0%, var(--dark) 78%);
  border-color: transparent;
}
.cat-tile-filler-mark {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .66);
}
.cat-tile-filler-text { font-size: 16px; font-weight: 600; line-height: 1.45; }
.cat-span-1 { grid-column: span 1; }
.cat-span-2 { grid-column: span 2; }
.cat-span-3 { grid-column: span 3; }

/* ----------------------------- 5. 热销产品（两排四列 · 分页轮播） -----------------------------
   卡片直接用产品列表同款 .product-card；一页 8 个 = 桌面两排四列，
   超出自动分页，翻页控件放在标题行右侧。 */
.hot-viewport { overflow: hidden; }
.hot-track { display: flex; transition: transform .45s ease; }
.hot-page { flex: 0 0 100%; min-width: 0; }
.hot-page[aria-hidden="true"] { visibility: hidden; }
.hot-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
/* 控件并入标题行右侧（与 link-arrow 基线对齐） */
.hot-controls { flex: none; display: flex; align-items: center; gap: 14px; padding-bottom: 5px; }
.hot-arrow {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  line-height: 1;
  color: var(--brand-deep);
  cursor: pointer;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #fff;
  transition: border-color .2s ease, color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.hot-arrow:hover {
  border-color: var(--brand);
  color: var(--brand);
  box-shadow: 0 6px 18px rgba(30, 136, 229, .16);
  transform: translateY(-1px);
}
.hot-arrow:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.hot-dots { display: flex; align-items: center; gap: 8px; }
.hot-dot {
  width: 8px;
  height: 8px;
  padding: 0;
  cursor: pointer;
  border: none;
  border-radius: 50%;
  background: var(--line);
  transition: width .25s ease, background .25s ease;
}
.hot-dot.is-active { width: 22px; border-radius: 4px; background: var(--brand); }
.hot-dot:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }

/* ----------------------------- 6. 户外网络硬件（左文右图分栏） ----------------------------- */
.net-inner {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
  align-items: center;
}
.net-copy { max-width: 500px; }
.net-chips {
  list-style: none;
  margin: 22px 0 30px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.net-chip {
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-dark);
  background: var(--brand-soft);
  border: 1px solid var(--brand-line);
  padding: 8px 14px;
  border-radius: 999px;
}
.net-visual img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  padding: 18px;
  box-sizing: border-box;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: linear-gradient(135deg, var(--brand-soft), #fff);
}

/* ----------------------------- 7. 应用场景 ----------------------------- */
/* 7a 有图：马赛克画廊（首图 2×2 + 紧凑位 + 末尾浏览位补位） */
.scene-mosaic {
  display: grid;
  grid-template-columns: repeat(var(--scene-cols, 4), minmax(0, 1fr));
  grid-auto-rows: minmax(190px, 1fr);
  gap: 16px;
}
.scene-tile {
  position: relative;
  display: block;
  min-height: 190px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  color: #fff;
  background: var(--dark);
  transition: box-shadow .22s ease, transform .22s ease;
}
.scene-tile:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.scene-tile-media { position: absolute; inset: 0; }
.scene-tile-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.scene-tile:hover .scene-tile-media img { transform: scale(1.05); }
.scene-tile-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(12, 35, 64, .88) 0%, rgba(12, 35, 64, .34) 46%, transparent 72%);
}
.scene-tile-body {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 5px;
  height: 100%;
  padding: 20px;
  justify-content: flex-end;
}
.scene-tile-title { font-size: 16.5px; font-weight: 700; line-height: 1.3; }
.scene-tile-desc {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  font-size: 13.5px;
  line-height: 1.5;
  color: rgba(255, 255, 255, .84);
}
.scene-tile--lead { grid-column: span 2; grid-row: span 2; }
.scene-tile--lead .scene-tile-body { gap: 7px; padding: 28px; }
.scene-tile--lead .scene-tile-title { font-size: 22px; }
.scene-tile--lead .scene-tile-desc { font-size: 14.5px; -webkit-line-clamp: 3; }
/* 只有 1~2 张场景图：不启用大特位，单图时拉高 */
.scene-mosaic--solo .scene-tile { min-height: 380px; }
/* 补位瓦片：品牌渐变 + 浏览入口（PHP 按空格数写 .scene-span-N） */
.scene-tile-filler {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 8px;
  padding: 24px;
  background: linear-gradient(150deg, var(--brand) 0%, var(--brand-deep) 70%);
}
.scene-tile-filler .scene-tile-body { justify-content: center; }
.scene-tile-filler .scene-tile-title { font-size: 18px; }
.scene-filler-arrow { font-size: 14px; font-weight: 600; color: rgba(255, 255, 255, .88); }
.scene-span-1 { grid-column: span 1; }
.scene-span-2 { grid-column: span 2; }
.scene-span-3 { grid-column: span 3; }

/* 7b 无图：双栏编辑式列表（标题 + 一句话说明，细线分隔） */
.scene-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 48px;
}
.scene-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 20px 2px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  transition: border-color .2s ease;
}
.scene-row:hover { border-color: var(--brand); }
.scene-row-title { font-size: 16.5px; font-weight: 700; }
.scene-row-desc { font-size: 14px; line-height: 1.6; color: var(--muted); }

/* ----------------------------- 8. closing CTA（浅蓝收尾行动带） ----------------------------- */
.closing-cta {
  padding: 76px 0;
  background: linear-gradient(135deg, var(--brand-soft) 0%, var(--brand-softer) 100%);
}
.closing-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  flex-wrap: wrap;
}
.closing-cta-text { max-width: 620px; }
.closing-cta-text .sec-title { margin: 0; }
.closing-cta-text .sec-sub { margin: 10px 0 0; }

/* ----------------------------- 9. 工厂实力：全宽深色媒体带 -----------------------------
   左文 + 右侧全幅工厂实景轮播 + 深色蒙层；底部接深色页脚，形成收尾。 */
.factory-band {
  position: relative;
  overflow: hidden;
  padding: 104px 0;
  background: var(--dark);
  color: #fff;
}
.factory-band-media { position: absolute; inset: 0; }
.factory-band-scroller {
  display: flex;
  width: 100%;
  height: 100%;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.factory-band-scroller::-webkit-scrollbar { display: none; }
.factory-band-slide { flex: 0 0 100%; height: 100%; margin: 0; scroll-snap-align: start; }
.factory-band-slide img { display: block; width: 100%; height: 100%; object-fit: cover; }
/* 没上传工厂实景：深蓝渐变兜底，不再留白 */
.factory-band-fallback {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--brand-deep) 0%, var(--dark) 70%);
}
.factory-band-scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(12, 35, 64, .95) 0%, rgba(12, 35, 64, .8) 44%, rgba(12, 35, 64, .4) 100%);
}
.factory-band-inner { position: relative; z-index: 1; }
.factory-band-copy { max-width: 580px; }
.factory-band-title {
  font-size: clamp(24px, 2.8vw, 34px);
  font-weight: 700;
  letter-spacing: -.02em;
  color: #fff;
}
.factory-band-sub { margin: 14px 0 0; font-size: 16px; line-height: 1.7; color: rgba(255, 255, 255, .78); }
.factory-facts {
  list-style: none;
  margin: 32px 0 36px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 28px;
}
.factory-fact { padding-left: 14px; border-left: 2px solid var(--brand); }
.factory-fact strong { display: block; font-size: 15.5px; font-weight: 700; color: #fff; }
.factory-fact span { display: block; margin-top: 3px; font-size: 13.5px; line-height: 1.55; color: rgba(255, 255, 255, .72); }
/* 深色带上的主按钮：白底深蓝字——品牌蓝按钮埋在深蓝背景里对比度不够 */
.factory-band-cta { background: #fff; color: var(--brand-deep); border-color: #fff; }
.factory-band-cta:hover { background: var(--brand-soft); color: var(--brand-deep); }
.factory-band-arrows { position: absolute; right: 28px; bottom: 28px; z-index: 2; display: flex; gap: 10px; }
.factory-band-arrows .factory-arrow {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  font-size: 22px;
  line-height: 1;
  color: #fff;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, .34);
  border-radius: 50%;
  background: rgba(12, 35, 64, .34);
  backdrop-filter: blur(6px);
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
}
.factory-band-arrows .factory-arrow:hover { background: rgba(12, 35, 64, .62); border-color: #fff; transform: scale(1.06); }
.factory-band-arrows .factory-arrow:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }

/* ----------------------------- 首页 v23 响应式 ----------------------------- */
@media (max-width: 980px) {
  .hero--home .hero-inner { flex-direction: column; align-items: flex-start; padding-bottom: 64px; }
  .hero-float { display: none; }

  .sec-head { flex-direction: column; align-items: flex-start; gap: 16px; }
  .sec-head .hot-controls { padding-bottom: 0; }

  .stat-band { padding: 36px 0; }
  .stat-band-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 20px; }
  .stat-band-item:nth-child(odd)::before { display: none; }

  /* 分类：2 列，大特位拉通一行 */
  .cat-mosaic { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cat-tile--lead { grid-column: 1 / -1; grid-row: auto; }
  .cat-tile--lead .cat-tile-media { aspect-ratio: 16 / 9; }
  /* 补位瓦片在小屏一律拉通，避免按桌面空格数算出半行 */
  .cat-tile-filler { grid-column: 1 / -1; }

  /* 热销产品：平板 3 列（8 个 = 3 行） */
  .hot-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }

  .net-inner { grid-template-columns: 1fr; gap: 36px; }

  /* 场景：2 列，大特位占满 2 列 2 行；补位瓦片拉通 */
  .scene-mosaic { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .scene-tile-filler { grid-column: 1 / -1; }

  .closing-cta { padding: 60px 0; }
  .factory-band { padding: 80px 0; }
  .factory-facts { grid-template-columns: 1fr 1fr; gap: 16px 20px; }
}
@media (max-width: 560px) {
  .stat-band-list { grid-template-columns: 1fr; gap: 22px; }
  .stat-band-item + .stat-band-item::before { display: none; }

  .cat-mosaic { grid-template-columns: 1fr; }
  .cat-tile--lead { grid-column: auto; }
  .cat-tile--lead .cat-tile-media { aspect-ratio: 16 / 10; }

  /* 热销产品：手机 2 列（8 个 = 4 行） */
  .hot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .hot-grid .product-card-body { padding: 14px; }
  .hot-grid .product-card-title { font-size: 15px; }

  .scene-mosaic { grid-template-columns: 1fr; }
  .scene-tile--lead { grid-column: auto; grid-row: auto; min-height: 260px; }
  .scene-mosaic--solo .scene-tile { min-height: 280px; }
  .scene-list { grid-template-columns: 1fr; }

  .closing-cta-inner { flex-direction: column; align-items: flex-start; }
  .closing-cta-inner .btn { width: 100%; }

  .factory-band { padding: 64px 0; }
  .factory-facts { grid-template-columns: 1fr; }
}

/* ================================================================
   17  关于我们页（工厂图廊 + 数据指标）
   设计取向与首页一致：白 + 浅蓝，品牌蓝 #1e88e5，深海军蓝 #0c2340，
   工厂实景作为视觉重心，干净、工程感、大量留白。
   ================================================================ */

/* 工厂图廊 */
.factory-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.factory-figure {
  position: relative;
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--soft);
  box-shadow: 0 1px 0 rgba(12, 35, 64, .04);
}
.factory-figure img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform .45s ease;
}
.factory-figure.is-featured { grid-column: 1 / -1; }
.factory-figure.is-featured img { aspect-ratio: 21 / 9; }
.factory-figure:hover img { transform: scale(1.045); }
.factory-cap {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 14px 18px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(to top, rgba(12, 35, 64, .72), transparent);
}
.factory-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 64px 24px;
  border: 1px dashed var(--line-2);
  border-radius: var(--radius);
  background: var(--soft);
  color: var(--muted);
  text-align: center;
}
.factory-empty svg { width: 54px; height: 54px; color: var(--brand); opacity: .7; }
.factory-empty p { margin: 0; font-size: 15px; max-width: 520px; line-height: 1.6; }

/* 数据指标条 */
.about-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  padding: 38px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.about-stat {
  text-align: center;
  padding: 8px 12px;
  border-right: 1px solid var(--line);
}
.about-stat:last-child { border-right: 0; }
.about-stat strong {
  display: block;
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--brand-deep);
  line-height: 1.1;
}
.about-stat span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--muted);
}

@media (max-width: 980px) {
  .factory-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .factory-figure.is-featured img { aspect-ratio: 16 / 9; }
  .about-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .about-stat:nth-child(2) { border-right: 0; }
  .about-stat { border-bottom: 1px solid var(--line); padding-bottom: 18px; }
  .about-stat:nth-last-child(-n+2) { border-bottom: 0; padding-bottom: 8px; }
}
@media (max-width: 560px) {
  .factory-gallery { grid-template-columns: 1fr; }
  .factory-figure.is-featured img { aspect-ratio: 16 / 9; }
  .about-stats { grid-template-columns: 1fr; padding: 28px; }
  .about-stat { border-right: 0; border-bottom: 1px solid var(--line); padding-bottom: 18px; }
  .about-stat:last-child { border-bottom: 0; padding-bottom: 8px; }
}

/* ================================================================
   18  首页 v23 收尾：工厂媒体带滚动兜底 + 新闻栏微调
   ================================================================ */

/* 工厂深色媒体带的横向滚动由 .factory-band-* 系列定义（见首页区块 9），
   这里保留 JS 钩子 .factory-scroller / .factory-slide 的 scroll-snap 兜底。 */
.factory-scroller { scroll-snap-type: x mandatory; scroll-behavior: smooth; }
.factory-slide { scroll-snap-align: start; }

/* 首页新闻展示 */
.news-grid-home { margin-top: 8px; }