/* 五菱重庆营销中心 · 新前端 v2 */
:root {
  --color-primary: #c8102e;
  --color-primary-dark: #a00d24;
  --color-accent: #1a5fb4;
  --color-text: #1f2937;
  --color-text-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-bg: #ffffff;
  --color-bg-alt: #f3f4f6;
  --color-bg-dark: #111827;
  --container: 1660px;
  --gutter: clamp(1rem, 3vw, 2.5rem);
  --header-h: 72px;
  --radius: 8px;
  --radius-btn: 4px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --transition: 0.2s ease;
  --bp-xl: 1400px;
  --bp-lg: 1200px;
  --bp-md: 1024px;
  --bp-sm: 768px;
  --bp-xs: 480px;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: clamp(15px, 1.6vw, 16px);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary); }
h1, h2, h3, h4 { margin: 0 0 0.5em; line-height: 1.3; font-weight: 600; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
.form__hp {
  position: absolute; left: -9999px; width: 1px; height: 1px;
  overflow: hidden; opacity: 0; pointer-events: none;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow {
  max-width: min(960px, 100%);
}

/* Topbar */
.site-topbar { background: var(--color-bg-dark); color: #9ca3af; font-size: 13px; }
.site-topbar__inner { padding: 0.5rem 0; }
.site-topbar__text {
  margin: 0;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}
.site-header.is-scrolled { box-shadow: var(--shadow); }
.site-header__inner {
  display: flex; align-items: center; gap: 1.5rem;
  min-height: var(--header-h);
}
.site-header__search {
  display: flex; align-items: center; gap: 0.25rem;
  flex-shrink: 0;
}
.site-header__search input {
  width: 7rem;
  max-width: 28vw;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  font-size: 13px;
}
.site-header__search button {
  padding: 0.35rem 0.6rem;
  font-size: 13px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-btn);
  color: var(--color-text);
}
.site-header__search button:hover { background: var(--color-border); }
.search-form {
  display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center;
  padding: 1rem 1.25rem; margin-bottom: 1.5rem;
}
.search-form input[type="search"] {
  flex: 1; min-width: 200px;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
}
.section__subtitle { font-size: 1.125rem; margin: 2rem 0 1rem; }
.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;
}
.site-logo img { height: 48px; width: auto; }
/* 导航：固定项间距（勿用 space-between，否则随屏宽被越拉越开） */
.site-nav {
  flex: 1; min-width: 0;
  display: flex; align-items: center; justify-content: center;
}
.site-nav__list {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-start;
  gap: 0.25rem 3rem;
  width: auto; max-width: 100%;
}
.site-nav__item { position: relative; }
.site-nav__item > a {
  display: block; padding: 0.5rem 0.2rem;
  color: var(--color-text); font-size: clamp(13px, 1.1vw, 15px); font-weight: 500;
  white-space: nowrap;
}
@media (max-width: 1280px) {
  .site-nav { justify-content: flex-start; }
  .site-nav__list { gap: 0.25rem 0.85rem; }
}
.site-nav__item > a:hover { color: var(--color-primary); }
.site-nav__item > a.is-active {
  color: var(--color-primary); font-weight: 600;
}
.site-nav__item > a.is-active:not(.has-caret)::after {
  content: ""; display: block; height: 2px; margin-top: 0.2rem;
  background: var(--color-primary); border-radius: 1px;
}
.mobile-nav__list a.is-active,
.mobile-nav__parent.is-active { color: var(--color-primary); font-weight: 600; }
.site-nav__dropdown {
  position: absolute; top: 100%; left: 0; min-width: 180px;
  background: #fff; border: 1px solid var(--color-border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 0.5rem 0; opacity: 0; visibility: hidden;
  transform: translateY(8px); transition: all var(--transition);
}
.site-nav__item.has-dropdown:hover .site-nav__dropdown,
.site-nav__item.has-dropdown:focus-within .site-nav__dropdown {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.site-nav__dropdown { z-index: 120; }
.site-nav__dropdown a {
  display: block; padding: 0.5rem 1rem; color: var(--color-text); font-size: 14px;
}
.site-nav__dropdown a:hover { background: var(--color-bg-alt); color: var(--color-primary); }

/* 产品中心 mega menu */
.site-nav__item.has-mega > a.has-caret::after {
  content: "▾"; margin-left: 0.25em; font-size: 0.75em; opacity: 0.6;
}
.site-nav__mega {
  position: absolute; top: 100%; left: 50%;
  width: 100vw; margin-left: -50vw;
  background: #fff; border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border); box-shadow: var(--shadow);
  padding: 1.25rem 0 1.5rem; opacity: 0; visibility: hidden;
  transform: translateY(8px); transition: all var(--transition); z-index: 110;
}
.site-nav__item.has-mega:hover .site-nav__mega,
.site-nav__item.has-mega:focus-within .site-nav__mega {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.site-nav__mega-inner {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem 1.5rem;
}
.mega-col__title {
  font-size: 14px; font-weight: 700; color: var(--color-primary);
  margin: 0 0 0.5rem; padding-bottom: 0.35rem;
  border-bottom: 2px solid var(--color-primary);
}
.mega-col ul a {
  display: block; padding: 0.3rem 0; font-size: 13px;
  color: var(--color-text-muted); line-height: 1.4;
}
.mega-col ul a:hover { color: var(--color-primary); }
.mega-col--all { grid-column: 1 / -1; margin-bottom: 0.25rem; }
.mega-all-link {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-size: 14px; font-weight: 700; color: var(--color-primary);
  padding: 0.35rem 0.75rem; border: 1px solid var(--color-primary); border-radius: var(--radius-btn);
}
.mega-all-link:hover { background: var(--color-primary); color: #fff; }

.site-header__contact { flex-shrink: 0; margin-left: auto; }
.site-header__hotline {
  display: flex; align-items: center; gap: 0.65rem;
  padding: 0.4rem 0.85rem 0.4rem 0.55rem;
  background: linear-gradient(135deg, rgba(200, 16, 46, 0.06) 0%, #fff 55%);
  border: 1px solid rgba(200, 16, 46, 0.14);
  border-radius: 10px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}
.site-header__hotline-icon {
  flex-shrink: 0; width: 36px; height: 36px; border-radius: 50%;
  background: var(--color-primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
}
.site-header__hotline-body { min-width: 0; text-align: left; line-height: 1.25; }
.site-header__contact-label {
  display: block; font-size: 11px; letter-spacing: 0.02em;
  color: var(--color-text-muted); margin-bottom: 0.15rem;
}
.site-header__phones {
  display: flex; flex-direction: column; align-items: flex-start;
  gap: 0.2rem;
}
.site-header__phone {
  color: var(--color-primary); font-weight: 700; text-decoration: none;
  font-size: clamp(15px, 1.08vw, 16px); letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums; line-height: 1.3;
  white-space: nowrap; transition: color var(--transition);
}
.site-header__phone:hover { color: var(--color-primary-dark, #a00d28); }
.site-header__phone--400,
.site-header__phone--mobile {
  font-size: inherit; font-weight: inherit; opacity: 1;
}
@media (min-width: 1200px) {
  .site-header__phones {
    flex-direction: row; flex-wrap: wrap; align-items: center;
    gap: 0.5rem 0.85rem;
  }
  .site-header__phone--mobile::before {
    content: "";
    display: inline-block; width: 1px; height: 0.9em;
    margin-right: 0.85rem; vertical-align: middle;
    background: rgba(200, 16, 46, 0.25);
  }
}
@media (max-width: 1199px) {
  .site-header__phone--mobile { display: none; }
  .site-header__phone--mobile::before { display: none; }
}
.site-nav-toggle {
  display: none; flex-direction: column; gap: 5px; padding: 8px;
}
.site-nav-toggle span {
  display: block; width: 22px; height: 2px; background: var(--color-text);
}

/* Mobile nav */
.mobile-nav {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0; visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}
.mobile-nav:not([hidden]) {
  opacity: 1; visibility: visible;
}
.mobile-nav__panel {
  width: min(320px, 85vw); height: 100%;
  background: #fff; padding: 1rem; overflow-y: auto;
}
.mobile-nav__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.mobile-nav__close { font-size: 28px; line-height: 1; }
.mobile-nav__list a {
  display: block; padding: 0.75rem 0; border-bottom: 1px solid var(--color-border);
  color: var(--color-text); font-size: 15px;
}
.mobile-nav__phones { margin-top: 1.5rem; }
.mobile-nav__phones a {
  display: block; color: var(--color-primary); font-weight: 700; font-size: 18px; margin-bottom: 0.5rem;
}
.mobile-nav__toggle-sub {
  display: flex; justify-content: space-between; align-items: center;
  width: 100%; padding: 0.75rem 0; border-bottom: 1px solid var(--color-border);
  font-size: 15px; font-weight: 500; color: var(--color-text);
}
.mobile-nav__toggle-sub .caret { font-size: 12px; transition: transform var(--transition); }
.mobile-nav__toggle-sub.is-open .caret { transform: rotate(180deg); }
.mobile-nav__sub { padding: 0.5rem 0 0.75rem 0.75rem; }
.mobile-nav__sub-title {
  display: block; font-size: 13px; font-weight: 700; color: var(--color-primary);
  margin: 0.5rem 0 0.25rem;
}
.mobile-nav__sub ul a {
  display: block; padding: 0.4rem 0; font-size: 14px; color: var(--color-text-muted);
  border-bottom: none;
}

/* Hero — 素材标准 1920×800，比例须一致否则 cover 会裁切 */
.hero-swiper {
  position: relative;
  width: 100%;
  /* 1920×800 → 高度 = 宽 × 800/1920 */
  height: clamp(180px, 41.67vw, 800px);
  background: #111;
}
.hero-swiper .swiper-wrapper,
.hero-swiper .swiper-slide,
.hero-swiper .swiper-slide > a {
  height: 100%;
}
.hero-swiper .swiper-slide > a { display: block; }
.hero-swiper img {
  width: 100%; height: 100%;
  object-fit: contain;
  object-position: center center;
}
.hero-swiper .swiper-pagination {
  bottom: 16px !important;
}
.hero-swiper .swiper-pagination-bullet {
  width: 10px; height: 10px; background: rgba(255,255,255,0.55); opacity: 1;
}
.hero-swiper .swiper-pagination-bullet-active { background: var(--color-primary); }

/* Sections */
.section { padding: 3rem 0; }
.section--promo { padding-top: 1.5rem; padding-bottom: 0; }
.promo-banner { display: block; border-radius: var(--radius); overflow: hidden; }
.section-heading {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 1.5rem; gap: 1rem;
}
.section-heading__title { font-size: 1.75rem; color: var(--color-text); }
.section-heading__subtitle {
  font-size: 13px; color: var(--color-text-muted);
  letter-spacing: 0.1em; text-transform: uppercase; margin: 0;
}
.section-heading__more {
  font-size: 14px; color: var(--color-primary); white-space: nowrap;
  padding: 0.5rem 1rem; border: 1px solid var(--color-primary); border-radius: var(--radius-btn);
}
.section-heading__more:hover { background: var(--color-primary); color: #fff; }

/* Home layout */
.home-layout {
  display: grid;
  grid-template-columns: minmax(240px, 280px) minmax(0, 1fr);
  gap: clamp(1.25rem, 2.5vw, 2.5rem);
  align-items: start;
}
.sidebar-box {
  background: var(--color-bg-alt); border-radius: var(--radius);
  overflow: hidden; border: 1px solid var(--color-border);
}
.sidebar-box__title a { color: inherit; text-decoration: none; }
.sidebar-box__title a:hover { color: var(--color-primary); }
.sidebar-menu__all a { font-weight: 600; color: var(--color-primary); }
.sidebar-menu__all a:hover { text-decoration: underline; }
.sidebar-menu__cat a {
  display: block; padding: 0.65rem 1rem; font-weight: 600; font-size: 14px;
  color: var(--color-text); border-bottom: 1px solid var(--color-border);
  background: #fff; text-decoration: none;
}
.sidebar-menu__cat a:hover { color: var(--color-primary); background: #fafafa; }
.mega-col__title a { color: inherit; text-decoration: none; }
.mega-col__title a:hover { color: var(--color-primary-dark); }
.mobile-nav__row {
  display: flex; align-items: center; justify-content: space-between; gap: 0.5rem;
}
.mobile-nav__parent {
  flex: 1; padding: 0.75rem 0; font-weight: 600; color: var(--color-text); text-decoration: none;
}
.mobile-nav__parent:hover { color: var(--color-primary); }
.mobile-nav__row .mobile-nav__toggle-sub {
  padding: 0.5rem 0.75rem; border: 1px solid var(--color-border); border-radius: 6px;
}
.sidebar-box__title {
  background: var(--color-primary); color: #fff;
  padding: 1rem; font-size: 1rem; margin: 0;
}
.sidebar-menu { padding: 0.5rem 0; }
.sidebar-menu__group { border-bottom: 1px solid var(--color-border); }
.sidebar-menu__name {
  display: block; padding: 0.6rem 1rem; font-weight: 600; font-size: 14px;
  background: #fff;
}
.sidebar-menu ul a {
  display: block; padding: 0.4rem 1rem 0.4rem 1.5rem;
  font-size: 13px; color: var(--color-text-muted);
}
.sidebar-menu ul a:hover { color: var(--color-primary); background: #fff; }
.sidebar-box__contact { padding: 1rem; text-align: center; }
.sidebar-box__phone {
  display: block; color: var(--color-primary); font-weight: 700; font-size: 1.1rem;
}

/* Grid & cards */
.grid {
  display: grid;
  gap: clamp(1rem, 2vw, 1.75rem);
}
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card {
  background: #fff; border: 1px solid var(--color-border);
  border-radius: var(--radius); overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card__link { display: block; color: inherit; text-decoration: none; }
.card__link:hover { color: inherit; }
.card__title { color: var(--color-text); }
.card__media { aspect-ratio: 4/3; overflow: hidden; background: var(--color-bg-alt); }
.card__media img { width: 100%; height: 100%; object-fit: cover; }
.card__body { padding: 1rem; }
.card__title {
  font-size: 14px; margin: 0;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.card__meta { font-size: 12px; color: var(--color-text-muted); margin: 0.5rem 0 0; }

/* News list */
.list-articles__head {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 0.5rem 1rem; margin-bottom: 1rem;
}
.list-articles__head .breadcrumbs { margin-bottom: 0; }
.list-summary--inline { margin: 0; white-space: nowrap; }
.news-list {
  border: 1px solid var(--color-border); border-radius: var(--radius);
  overflow: hidden; background: #fff; box-shadow: var(--shadow);
}
.news-list li { border-bottom: 1px solid var(--color-border); }
.news-list li:last-child { border-bottom: none; }
.news-list a {
  display: flex; align-items: center; gap: 1rem 1.25rem;
  padding: 0.95rem 1.25rem; color: var(--color-text); text-decoration: none;
  transition: background var(--transition);
}
.news-list a:hover { background: rgba(200, 16, 46, 0.04); }
.news-list a:hover .news-list__title { color: var(--color-primary); }
.news-list__date {
  flex-shrink: 0; width: 6.5rem; color: var(--color-text-muted); font-size: 14px;
  font-variant-numeric: tabular-nums;
}
.news-list__title {
  flex: 1; min-width: 0; line-height: 1.5; font-size: 15px;
  transition: color var(--transition);
}
.news-list__views {
  flex-shrink: 0; font-size: 12px; color: var(--color-text-muted); white-space: nowrap;
  padding: 0.2rem 0.5rem; background: var(--color-bg-alt); border-radius: var(--radius-btn);
}
.section--list-articles .list-summary { margin-bottom: 0.75rem; }
.news-list__empty { padding: 2rem 1.25rem; text-align: center; color: var(--color-text-muted); }
.section--list-articles { padding-top: clamp(1.25rem, 3vw, 2rem); padding-bottom: clamp(2rem, 4vw, 3rem); }
.section--list-articles .news-list { margin-bottom: 1.5rem; }
.section--list-products { padding-top: clamp(1.25rem, 3vw, 2rem); padding-bottom: clamp(2rem, 4vw, 3rem); }
.product-list-nav {
  margin-bottom: 1.25rem;
  padding: clamp(0.85rem, 2vw, 1.15rem) clamp(1rem, 2vw, 1.25rem);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}
.product-list-nav__cats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0;
}
.product-list-nav__cats + .product-list-nav__groups {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}
.product-list-nav__cat {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.9rem;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  background: var(--color-bg-alt);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.product-list-nav__cat:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.product-list-nav__cat.is-active {
  border-color: var(--color-primary);
  background: rgba(200, 16, 46, 0.08);
  color: var(--color-primary);
  font-weight: 600;
}
.product-list-nav__groups {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.product-list-nav__group-title {
  margin: 0 0 0.45rem;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
}
.product-list-nav__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.5rem;
}
.product-list-nav__links a {
  display: inline-block;
  padding: 0.35rem 0.7rem;
  font-size: 13px;
  line-height: 1.35;
  color: var(--color-text);
  text-decoration: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  background: #fff;
  transition: border-color var(--transition), color var(--transition);
}
.product-list-nav__links a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.list-layout {
  display: grid;
  grid-template-columns: minmax(200px, 240px) minmax(0, 1fr);
  gap: clamp(1rem, 2.5vw, 2rem);
  align-items: start;
}
.list-sidebar { position: sticky; top: calc(var(--header-h) + 1rem); }
.list-sidebar__menu { list-style: none; margin: 0; padding: 0.25rem 0; }
.list-sidebar__menu a {
  display: block; padding: 0.5rem 0.75rem; font-size: 14px;
  color: var(--color-text); text-decoration: none; border-radius: var(--radius-btn);
}
.list-sidebar__menu a:hover { background: var(--color-bg-alt); color: var(--color-primary); }
.list-sidebar__menu a.is-active {
  background: rgba(200, 16, 46, 0.08); color: var(--color-primary); font-weight: 600;
}
.list-summary { margin: 0 0 1rem; font-size: 14px; color: var(--color-text-muted); }
.list-main { min-width: 0; }
@media (max-width: 1023px) {
  .list-layout { grid-template-columns: 1fr; }
  .list-sidebar { position: static; }
  .list-sidebar__menu {
    display: flex; flex-wrap: wrap; gap: 0.35rem;
  }
  .list-sidebar__menu li { flex: 0 0 auto; }
  .list-sidebar__menu a { padding: 0.4rem 0.65rem; border: 1px solid var(--color-border); font-size: 13px; }
  .list-sidebar__menu a.is-active { border-color: var(--color-primary); }
}

/* Page banner — 全宽图，标题在 container 内 */
.page-banner { position: relative; overflow: hidden; }
.page-banner > img {
  width: 100%;
  height: clamp(160px, 28vw, 320px);
  object-fit: cover;
}
.page-banner__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to right, rgba(0,0,0,0.55), transparent);
  display: flex; align-items: center;
}
.page-banner__overlay .container { width: 100%; }
.page-banner__overlay h1 { color: #fff; font-size: clamp(1.35rem, 3vw, 2.25rem); }
.page-banner__series { color: rgba(255,255,255,0.85); margin: 0 0 0.25rem; }
.page-title { font-size: 2rem; margin-bottom: 1.5rem; }
.page-banner--short > img { height: clamp(140px, 22vw, 260px); }

/* 服务中心 */
.service-intro { margin-bottom: 2rem; }
.service-stats {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem; margin-bottom: 2.5rem;
}
.service-stats__item {
  text-align: center; padding: 1.5rem 1rem;
  background: var(--color-bg-alt); border-radius: var(--radius);
  border: 1px solid var(--color-border);
}
.service-stats__item strong {
  display: block; font-size: clamp(1.75rem, 3vw, 2.5rem);
  color: var(--color-primary); line-height: 1.2; margin-bottom: 0.35rem;
}
.service-stats__item span { font-size: 14px; color: var(--color-text-muted); }
.service-blocks {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}
.service-block {
  padding: 1.5rem; background: #fff;
  border: 1px solid var(--color-border); border-radius: var(--radius);
}
.service-block h3 { font-size: 1.1rem; margin-bottom: 0.75rem; }
.service-block__note {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.6;
  padding: 0.625rem 0.75rem;
  margin-bottom: 0.875rem;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  border-left: 3px solid var(--color-border);
}
.service-block img { margin-top: 1rem; border-radius: var(--radius); }
.service-extra { margin-top: 2.5rem; }
.service-faq { margin-top: 2.5rem; padding-top: 2rem; border-top: 1px solid var(--color-border); }
.service-faq > h2 { font-size: 1.35rem; margin-bottom: 1rem; }
.service-faq__list { display: flex; flex-direction: column; gap: 0.5rem; }
.service-faq__item {
  border: 1px solid var(--color-border); border-radius: var(--radius);
  padding: 0.75rem 1rem; background: #fff;
}
.service-faq__item summary {
  cursor: pointer; font-weight: 600; font-size: 15px; list-style: none;
}
.service-faq__item summary::-webkit-details-marker { display: none; }
.service-faq__item p { margin: 0.75rem 0 0; font-size: 14px; line-height: 1.7; color: var(--color-text-muted); }

/* 联系我们 */
.contact-layout {
  display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(280px, 1fr);
  gap: 2rem; align-items: stretch;
}
.contact-form-card,
.contact-info-card {
  height: 100%;
  box-sizing: border-box;
}
.contact-form-card {
  padding: 1.75rem 1.75rem 2rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
}
.contact-form-card .js-inquiry-form {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.contact-form-card .js-inquiry-form .form__group:last-of-type {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.contact-form-card .js-inquiry-form .form__group:last-of-type textarea {
  flex: 1;
  min-height: 8rem;
}
.contact-form-card h2 {
  font-size: 1.25rem;
  margin: 0 0 0.5rem;
}
.contact-form-card__lead {
  margin: 0 0 1.25rem;
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}
.contact-form-card .form__group:last-of-type {
  margin-bottom: 1.25rem;
}
.contact-info-card {
  padding: 1.75rem; background: var(--color-bg-alt);
  border: 1px solid var(--color-border); border-radius: var(--radius);
  display: flex;
  flex-direction: column;
}
.contact-info-card h2 { font-size: 1.15rem; margin-bottom: 1.25rem; }
.contact-info-list li {
  display: flex; flex-direction: column; gap: 0.2rem;
  margin-bottom: 1rem; font-size: 14px;
}
.contact-info-list__label {
  font-weight: 600; color: var(--color-text-muted); font-size: 13px;
}
.contact-qr { text-align: center; margin: 1.5rem 0 0; margin-top: auto; padding-top: 1.5rem; }
.contact-qr img { margin: 0 auto 0.5rem; border-radius: var(--radius); }
.contact-qr p { font-size: 13px; color: var(--color-text-muted); margin: 0; }
.contact-extra { margin-top: 2.5rem; }

/* Prose / article content */
.prose {
  font-size: clamp(15px, 1.6vw, 16px);
  line-height: 1.8;
  overflow-wrap: break-word;
}
.prose img {
  display: block; max-width: 100%; width: auto !important;
  height: auto !important; margin: 1.25rem auto; border-radius: var(--radius);
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.08);
  image-orientation: from-image;
}
.prose p { margin-bottom: 1em; }
.section--article {
  padding-top: clamp(1.25rem, 3vw, 2rem);
  padding-bottom: clamp(2rem, 4vw, 3rem);
}
.section--article .prose { margin-bottom: 2rem; }
.prose table {
  display: block; width: 100%; overflow-x: auto;
  border-collapse: collapse; margin: 1em 0;
  -webkit-overflow-scrolling: touch;
}
.prose th, .prose td { border: 1px solid var(--color-border); padding: 0.5rem 0.75rem; white-space: nowrap; }
.prose--compact { font-size: 15px; }

/* Article */
.article-header { margin-bottom: 2rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--color-border); }
.article-header h1 { font-size: 1.75rem; }
.article-header__meta { font-size: 14px; color: var(--color-text-muted); margin-bottom: 0.75rem; }
.article-footer { margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--color-border); }

.article-pager {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 1rem 1.25rem;
  align-items: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}
.article-pager__item { min-width: 0; }
.article-pager__item--next { text-align: right; }
.article-pager__label {
  display: block; font-size: 12px; color: var(--color-text-muted);
  margin-bottom: 0.35rem; letter-spacing: 0.04em;
}
.article-pager__link {
  color: var(--color-text); text-decoration: none; font-size: 14px; line-height: 1.45;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.article-pager__link:hover { color: var(--color-primary); }
.article-pager__empty { font-size: 14px; color: var(--color-text-muted); }
.article-pager__hub {
  flex-shrink: 0; padding: 0.5rem 1rem; border: 1px solid var(--color-border);
  border-radius: var(--radius-btn); font-size: 14px; color: var(--color-text); text-decoration: none;
  background: var(--color-bg-alt); white-space: nowrap;
}
.article-pager__hub:hover { border-color: var(--color-primary); color: var(--color-primary); }
.article-pager--pair {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}
@media (max-width: 767px) {
  .article-pager {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .article-pager__item--next { text-align: left; }
  .article-pager__hub { justify-self: start; }
}

/* Product detail */
.section--product {
  padding-top: clamp(1rem, 2.5vw, 1.75rem);
  padding-bottom: clamp(2rem, 4vw, 3rem);
}
.section--product .breadcrumbs { margin-bottom: 1.25rem; }
.product-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: clamp(1.25rem, 3vw, 2.75rem);
  align-items: start;
  margin-bottom: clamp(1.25rem, 2.5vw, 1.75rem);
  padding: clamp(1rem, 2vw, 1.75rem);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}
.product-gallery {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-width: 0;
}
.product-gallery__main {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: linear-gradient(180deg, #f9fafb 0%, #f3f4f6 100%);
  border: 1px solid var(--color-border);
}
.product-gallery__main.swiper,
.product-gallery__main .swiper-wrapper,
.product-gallery__main .swiper-slide {
  height: 100%;
}
.product-gallery__main .swiper-slide {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  box-sizing: border-box;
}
.product-gallery__main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.product-gallery__thumbs {
  width: 100%;
  margin-top: 0.15rem;
}
.product-gallery__thumbs.swiper {
  height: auto;
}
.product-gallery__thumbs .swiper-slide {
  width: 76px;
  height: 76px;
  opacity: 0.55;
  cursor: pointer;
  border-radius: 6px;
  overflow: hidden;
  border: 2px solid transparent;
  box-sizing: border-box;
  transition: opacity var(--transition), border-color var(--transition);
}
.product-gallery__thumbs .swiper-slide-thumb-active {
  opacity: 1;
  border-color: var(--color-primary);
}
.product-gallery__thumbs img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-gallery__note {
  font-size: 12px;
  color: var(--color-text-muted);
  margin: 0.15rem 0 0;
  text-align: center;
}
.product-info {
  min-width: 0;
}
@media (min-width: 992px) {
  .product-info {
    position: sticky;
    top: calc(var(--header-h, 72px) + 1rem);
  }
}
.product-info__title {
  margin: 0 0 1rem;
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  line-height: 1.3;
  font-weight: 700;
}
.product-info__actions {
  margin-top: 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.product-highlights { margin-top: 0.25rem; }
.product-summary { color: var(--color-text-muted); line-height: 1.65; }
.product-tabs-card {
  margin-top: 0.25rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}
.product-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  padding: 0 clamp(0.5rem, 2vw, 1rem);
}
.product-tabs__btn {
  position: relative;
  padding: 0.9rem 1.35rem;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-muted);
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: color var(--transition);
}
.product-tabs__btn:hover { color: var(--color-text); }
.product-tabs__btn.is-active,
.product-tabs__btn[aria-selected="true"] {
  color: var(--color-primary);
}
.product-tabs__btn.is-active::after {
  content: '';
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0;
  height: 3px;
  background: var(--color-primary);
  border-radius: 3px 3px 0 0;
}
.product-tabs-card__solo-title {
  margin: 0;
  padding: 0.95rem 1.25rem;
  font-size: 1.05rem;
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}
.product-tabs__panels {
  padding: clamp(1.15rem, 2.5vw, 1.85rem);
}
.product-tabs__empty {
  margin: 0;
  padding: 1.25rem 0;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 14px;
  line-height: 1.6;
}
.product-tabs__empty a {
  color: var(--color-primary);
  text-decoration: underline;
}
.product-detail-block + .product-detail-block {
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  padding-top: clamp(1.5rem, 3vw, 2.25rem);
  border-top: 1px dashed var(--color-border);
}
.product-detail-block__title {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.4;
}
.product-detail-block__body .swiper-container,
.product-specs-table .swiper-container {
  height: clamp(260px, 38vw, 400px);
  margin-bottom: 1rem;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-bg-alt);
}
.product-detail-block__body .peijian-top .swiper-slide {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
  height: 100%;
  padding: 0.75rem;
  box-sizing: border-box;
}
.product-detail-block__body .peijian-top .swiper-slide img {
  width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.product-detail-block__body .peijian-top .content h2 {
  font-size: 1.05rem;
  margin: 0 0 0.5rem;
}
.product-detail-block__body .peijian-thumbs.swiper-container {
  height: auto;
  margin-bottom: 0.75rem;
  background: transparent;
}
.product-detail-block__body .peijian-thumbs .swiper-slide {
  height: auto;
  cursor: pointer;
  opacity: 0.55;
  border-radius: 6px;
  overflow: hidden;
  transition: opacity var(--transition);
}
.product-detail-block__body .peijian-thumbs .swiper-slide-thumb-active {
  opacity: 1;
}
.product-detail-block__body .product-3.swiper-container {
  height: auto;
  padding-bottom: 0.5rem;
}
.product-detail-block__body .product-3 .swiper-slide {
  height: auto;
  text-align: center;
  padding: 0.5rem;
  box-sizing: border-box;
}
.product-detail-block__body .product-3 .swiper-slide img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
}
.product-detail-block__body .product-3 .swiper-slide h3 {
  margin: 0.65rem 0 0.35rem;
  font-size: 1rem;
}
#product-section-product-5 .product-detail-block__body > .width > ul,
#product-section-product-5 .product-detail-block__body > ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}
#product-section-product-5 .product-detail-block__body li {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem;
  background: #fff;
}
#product-section-product-5 .product-detail-block__body li img {
  width: 100%;
  height: auto;
  border-radius: 4px;
  object-fit: cover;
}
#product-section-product-5 .product-detail-block__body h4 {
  margin: 0.65rem 0 0.35rem;
  font-size: 0.95rem;
  font-weight: 600;
}
.product-detail-block__body table,
.product-specs-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.product-detail-block__body table th,
.product-detail-block__body table td,
.product-specs-table table th,
.product-specs-table table td {
  border: 1px solid var(--color-border);
  padding: 0.55rem 0.7rem;
  vertical-align: top;
}
.product-detail-block__body table th,
.product-specs-table table th {
  background: var(--color-bg-alt);
  font-weight: 600;
  width: 28%;
}
.product-specs-table { overflow-x: auto; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.65rem 1.5rem; border-radius: var(--radius-btn);
  font-size: 15px; font-weight: 500; transition: all var(--transition);
}
.btn--primary { background: var(--color-primary); color: #fff; border: none; }
.btn--primary:hover { background: var(--color-primary-dark); color: #fff; }
.btn--outline { border: 1px solid var(--color-primary); color: var(--color-primary); }
.btn--outline:hover { background: var(--color-primary); color: #fff; }
.btn--block { width: 100%; }
.btn--sm { padding: 0.4rem 1rem; font-size: 13px; }

/* Footer — 5 列：品牌 | 产品 | 资讯 | 关于 | 联系 */
.site-footer {
  background: var(--color-bg-dark);
  color: #9ca3af;
  padding: clamp(2rem, 4vw, 3.5rem) 0 0;
}
.site-footer a { color: #d1d5db; }
.site-footer a:hover { color: #fff; }
.site-footer__top {
  display: grid;
  grid-template-columns: minmax(240px, 1.45fr) minmax(160px, 1fr) minmax(100px, 0.75fr) minmax(100px, 0.75fr) minmax(260px, 1.15fr);
  gap: clamp(1.5rem, 2.5vw, 2.5rem);
  align-items: start;
  padding-bottom: clamp(1.5rem, 3vw, 2.5rem);
}
.site-footer__heading {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 1rem;
  padding-bottom: 0.65rem;
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}
.site-footer__logo-link { display: inline-block; margin-bottom: 1rem; }
.site-footer__logo { height: 44px; width: auto; }
.site-footer__about {
  font-size: 13px;
  line-height: 1.75;
  margin: 0;
  color: #9ca3af;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.site-footer__links li { margin-bottom: 0.45rem; }
.site-footer__links a { font-size: 13px; line-height: 1.5; }
.site-footer__links--cols {
  columns: 2;
  column-gap: 1rem;
}
.site-footer__links--cols li { break-inside: avoid; }
.site-footer__contact-box {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.site-footer__contact-info { flex: 1; min-width: 0; }
.site-footer__contact-info p { margin: 0 0 0.5rem; font-size: 13px; line-height: 1.6; }
.site-footer__phone-row { display: flex; flex-direction: column; gap: 0.25rem; margin-bottom: 0.65rem !important; }
.site-footer__phone {
  color: #fff !important;
  font-weight: 700;
  font-size: clamp(15px, 1.2vw, 17px);
}
.site-footer__address { color: #9ca3af; }
.site-footer__qr-wrap { flex-shrink: 0; text-align: center; }
.site-footer__qr { border-radius: 6px; display: block; }
.site-footer__qr-tip { font-size: 11px; margin: 0.35rem 0 0; color: #6b7280; }
.site-footer__bottom {
  border-top: 1px solid #374151;
  padding: 1rem 0 1.25rem;
  font-size: 12px;
  text-align: center;
  color: #6b7280;
}
.site-footer__bottom p { margin: 0; }

/* Float tools */
/* 新主题已自带留言/电话浮窗，隐藏百度商桥等第三方在线咨询 */
#newBridge,
#newBridgeWrapper,
#nb_invite_wrap,
#nb_invite_ok,
.hm-webim,
iframe[src*="webim"],
iframe[src*="talk99"],
.LR_minimize_container,
#LRdiv0,
.float-menu {
  display: none !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

.float-tools {
  position: fixed; right: 1rem; bottom: 5rem; z-index: 120;
  display: flex; flex-direction: column; gap: 0.5rem;
}
.float-tools__btn {
  width: 44px; height: 44px; border-radius: var(--radius-btn);
  background: var(--color-primary); color: #fff;
  font-size: 12px; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow); border: none; cursor: pointer; text-decoration: none;
}
.float-tools__btn:hover { background: var(--color-primary-dark); color: #fff; }
.float-tools__btn[hidden] { display: none !important; }

/* 正文内链颜色 */
.prose a { color: var(--color-accent); word-break: break-word; }
.prose a:hover { color: var(--color-primary); }
.site-logo { flex-shrink: 0; }

/* Mobile tabbar */
.mobile-tabbar {
  display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 95;
  background: #fff; border-top: 1px solid var(--color-border);
  padding: 0.25rem 0 env(safe-area-inset-bottom);
}
.mobile-tabbar__item {
  flex: 1; display: flex; flex-direction: column; align-items: center;
  padding: 0.35rem 0; font-size: 11px; color: var(--color-text-muted);
}
.mobile-tabbar__item.is-highlight { color: var(--color-primary); font-weight: 600; }
.mobile-tabbar__icon {
  width: 22px; height: 22px; margin-bottom: 2px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; line-height: 1; opacity: 0.85;
}
.mobile-tabbar__icon--home::before { content: "⌂"; }
.mobile-tabbar__icon--grid::before { content: "☰"; }
.mobile-tabbar__icon--phone::before { content: "☎"; }
.mobile-tabbar__icon--message::before { content: "✉"; }
.mobile-tabbar__icon--contact::before { content: "☎"; }
.mobile-tabbar__item { text-decoration: none; }
.mobile-tabbar__item:hover { color: var(--color-primary); }

/* Modal */
.modal { position: fixed; inset: 0; z-index: 300; display: flex; align-items: center; justify-content: center; padding: 1rem; }
.modal[hidden] { display: none; }
.modal__backdrop { position: absolute; inset: 0; background: rgba(0,0,0,0.5); }
.modal__dialog {
  position: relative; width: min(480px, 100%); max-height: 90vh; overflow-y: auto;
  background: #fff; border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow);
}
.modal__header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.modal__header h2 { font-size: 1.25rem; margin: 0; }
.modal__close { font-size: 28px; line-height: 1; color: var(--color-text-muted); }

/* Form */
.form__group { margin-bottom: 1rem; }
.form__group label { display: block; font-size: 14px; margin-bottom: 0.35rem; font-weight: 500; }
.form__input {
  width: 100%; padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border); border-radius: var(--radius);
  font-size: 15px; font-family: inherit;
}
.form__input:focus { outline: none; border-color: var(--color-accent); box-shadow: 0 0 0 3px rgba(26,95,180,0.15); }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.required { color: var(--color-primary); }

.empty-tip { grid-column: 1 / -1; text-align: center; color: var(--color-text-muted); padding: 3rem; }

/* Legacy product scope */
.legacy-product-body { background: var(--color-bg-alt); }
.legacy-product-body .width {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ── Responsive ── */

/* 大屏：1660 内容区，5 列可选（产品多时用 4 列） */
@media (min-width: 1500px) {
  .page-home .home-main .grid--4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* 中大屏：导航略紧凑 */
@media (max-width: 1399px) {
  .site-header__inner { gap: 1rem; }
  .site-logo img { height: 42px; }
}

/* 平板横屏 / 小笔记本 */
@media (max-width: 1199px) {
  .grid--4 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .site-footer__top {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .site-footer__brand { grid-column: 1 / -1; }
  .site-footer__about { -webkit-line-clamp: 3; }
  .site-footer__contact { grid-column: 1 / -1; }
  .site-footer__contact-box { max-width: 480px; }
}

/* 平板：切换移动导航 */
@media (max-width: 1023px) {
  :root { --header-h: 60px; }
  .grid--4 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .site-nav, .site-header__contact { display: none; }
  .list-articles__head { flex-direction: column; align-items: flex-start; }
  .list-summary--inline { white-space: normal; }
  .site-nav-toggle { display: flex; margin-left: auto; }
  .home-layout { grid-template-columns: 1fr; }
  .home-sidebar { display: none; }
  .site-footer__top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .site-footer__brand { grid-column: 1 / -1; }
  .site-footer__col--products { grid-column: 1 / -1; }
  .site-footer__links--cols { columns: 2; }
  .site-footer__contact { grid-column: 1 / -1; }
  .product-hero { grid-template-columns: 1fr; }
  .product-info { position: static; }
  .product-detail-block__body .peijian-top .swiper-slide { grid-template-columns: 1fr; }
  .service-blocks { grid-template-columns: 1fr; }
  .service-stats { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .section-heading {
    flex-wrap: wrap;
    align-items: center;
  }
}

/* 手机横屏 / 大屏手机 */
@media (max-width: 767px) {
  .prose th, .prose td { white-space: normal; }
  body { padding-bottom: calc(56px + env(safe-area-inset-bottom)); }
  .grid--3, .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .section { padding: 1.75rem 0; }
  .section-heading { flex-direction: column; align-items: flex-start; }
  .section-heading__title { font-size: 1.35rem; }
  .section-heading__more { align-self: flex-start; }
  .float-tools { display: none; }
  .mobile-tabbar { display: flex; }
  .site-footer { padding-top: 2rem; }
  .site-footer__top { grid-template-columns: 1fr; }
  .site-footer__brand,
  .site-footer__col--products,
  .site-footer__contact { grid-column: auto; }
  .site-footer__links--cols { columns: 1; }
  .site-footer__about { -webkit-line-clamp: unset; }
  .form__row { grid-template-columns: 1fr; }
  .news-list a { flex-wrap: wrap; align-items: flex-start; }
  .news-list__date { width: auto; font-size: 12px; }
  .news-list__views { width: 100%; padding-left: 0; }
  .article-header h1 { font-size: 1.4rem; }
  .hero-swiper { height: clamp(160px, 41.67vw, 800px); }
  .product-gallery__thumbs .swiper-slide { max-width: 72px; }
}

/* 面包屑（legacy 产品页见 legacy-product-overrides.css） */
.breadcrumbs { margin-bottom: 1.25rem; font-size: 13px; color: var(--color-text-muted); }
.breadcrumbs__list {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.35rem;
  list-style: none; margin: 0; padding: 0;
}
.breadcrumbs__list li:not(:last-child)::after {
  content: '/'; margin-left: 0.35rem; color: var(--color-border);
}
.breadcrumbs a { color: var(--color-text-muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--color-primary); }

/* 分页 */
.site-pagination { margin-top: 1.75rem; padding-top: 0.25rem; }
.section--list-articles .site-pagination { margin-top: 1.25rem; }
.site-pagination__inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 0.5rem;
}
.site-pagination__link,
.site-pagination__current {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 36px; height: 36px; padding: 0 0.65rem;
  border-radius: var(--radius-btn); font-size: 14px; text-decoration: none;
}
.site-pagination__link {
  background: var(--color-bg-alt); color: var(--color-text);
  border: 1px solid var(--color-border);
}
.site-pagination__link:hover { border-color: var(--color-primary); color: var(--color-primary); }
.site-pagination__current {
  background: var(--color-primary); color: #fff; font-weight: 600;
}
.site-pagination__info { font-size: 13px; color: var(--color-text-muted); margin-left: 0.5rem; }

/* 404 */
.section--404 .error-code { line-height: 1; }

/* 小屏手机 */
@media (max-width: 479px) {
  :root { --gutter: 1rem; }
  .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .site-topbar { display: none; }
  .site-logo img { height: 36px; }
  .card__body { padding: 0.75rem; }
  .modal__dialog { padding: 1rem; }
  .site-footer__bottom p { font-size: 11px; line-height: 1.6; }
}