.hero-banner{padding:0;margin-bottom:0;position:relative;overflow:hidden}
.hero-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 18% -8%,rgba(230,50,46,.16),transparent 44%),radial-gradient(circle at 82% 12%,rgba(230,50,46,.12),transparent 48%);
  pointer-events:none;
}
.hero-banner-shell{width:min(var(--container),calc(100% - 52px));margin:0 auto}
.home-banner{position:relative;overflow:hidden;width:100%;aspect-ratio:1920 / 720;max-height:540px;background:#1a1a1a;border-radius:12px;border:1px solid rgba(0,0,0,.20);box-shadow:0 20px 42px rgba(18,18,18,.24)}
.home-banner::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(14,14,14,.72) 0%,rgba(14,14,14,.42) 46%,rgba(14,14,14,.08) 74%);z-index:2;pointer-events:none}
.home-banner-slide{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .35s ease;display:block}
.home-banner-slide.is-active{opacity:1;pointer-events:auto;z-index:1}
.home-banner-slide img{width:100%;height:100%;object-fit:cover}
.home-banner-overlay{position:absolute;left:46px;top:52%;transform:translateY(-50%);z-index:3;max-width:min(560px,62%);display:grid;gap:16px}
.home-banner-kicker{margin:0;color:rgba(255,255,255,.78);font-size:13px;letter-spacing:.12em;text-transform:uppercase}
.home-banner-title{margin:0;color:#fff;font-size:42px;line-height:1.22;font-weight:700;letter-spacing:.01em}
.home-banner-desc{margin:0;color:rgba(255,255,255,.88);font-size:15px;line-height:1.75;max-width:520px}
.home-banner-actions{display:flex;gap:12px;flex-wrap:wrap}
.home-banner-btn{display:inline-flex;align-items:center;justify-content:center;min-width:136px;height:42px;padding:0 18px;border-radius:999px;border:1px solid rgba(255,255,255,.58);color:#fff;text-decoration:none;background:rgba(255,255,255,.08);font-size:14px}
.home-banner-btn.is-primary{background:linear-gradient(135deg,#ef4642,#d52d29);border-color:transparent;color:#fff;box-shadow:0 10px 24px rgba(230,50,46,.35)}
.home-banner-btn:hover{filter:brightness(1.06)}
.home-banner-dots{position:absolute;left:50%;bottom:18px;transform:translateX(-50%);display:flex;gap:10px;z-index:3}
.home-banner-dot{width:11px;height:11px;border-radius:999px;background:rgba(255,255,255,.46);border:1px solid rgba(0,0,0,.28)}
.home-banner-dot.is-active{background:#ffffff;border-color:rgba(0,0,0,.58)}
.home-products .card .placeholder-image-4x3,.home-products .card .slot-image-4x3{border-radius:0}
.product-matrix-filter{margin-bottom:18px}
.product-matrix{display:grid;grid-template-columns:1.24fr .76fr;gap:var(--module-gap)}
.home-products .product-matrix{grid-template-columns:1fr}
.home-products .product-matrix-side{display:none}
.product-matrix-main .card-body{padding:22px}
.product-matrix-side{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.brand-panels{display:grid;grid-template-columns:1fr 1fr;gap:var(--module-gap)}

/* 修改说明：公司介绍模块文字层级优化，提升可读性并增加红色装饰呼应导航。 */
.brand-intro{max-width:980px;font-family:"Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}
.brand-intro-title{margin:0 0 20px;font-size:40px;line-height:1.18;font-weight:700;color:#1f1f1f;letter-spacing:.022em;position:relative;display:inline-block;padding-left:14px}
.brand-intro-title::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:999px;background:#e6322e}
.brand-intro-content{display:grid;gap:16px}
.brand-intro-content p{margin:0;font-size:19px;line-height:2;letter-spacing:.014em;color:#333}
.advantage-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--card-gap)}
.list-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--card-gap)}
.news-list{display:grid;gap:16px}
.news-item{display:grid;grid-template-columns:220px 1fr;gap:20px;padding:16px;border:1px solid rgba(0,0,0,.12);border-radius:var(--card-radius);background:#ffffff}
.support-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.contact-page-main{background:#f8f8f8}
.contact-page-shell{position:relative}
.contact-page-shell::before{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(112deg,rgba(255,255,255,.22),rgba(255,255,255,0))}
/* 修改说明：联系页主标题增加视觉层级与红色装饰呼应导航主色。 */
.contact-page-heading .contact-title{margin:0;font-size:34px;line-height:1.2;font-weight:700;color:#1e1e1e;letter-spacing:.02em;position:relative;display:inline-block;padding-left:14px}
.contact-page-heading .contact-title::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:999px;background:#e6322e}
.contact-page-heading .contact-subtitle{margin-top:10px;font-size:17px;line-height:1.85;color:#595959;max-width:760px;letter-spacing:.01em}
/* 修改说明：强化联系页标题层级与可读性。 */
.contact-company{margin:0;font-size:24px;line-height:1.35;font-weight:600;color:#1f1f1f;letter-spacing:.015em}
.contact-company-en{margin-top:10px;font-size:13px;line-height:1.75;color:#777;letter-spacing:.08em}
/* 修改说明：联系页桌面布局与地图尺寸重构，保证PC端地图完整展示且不挤压。 */
.contact-layout{display:grid;grid-template-columns:minmax(260px,.75fr) minmax(0,1.25fr);gap:18px;align-items:stretch}
.contact-info-slab{background:#f8f8f8;border:1px solid rgba(0,0,0,.10);border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,.06);min-width:260px}
.contact-map-slab{background:#fff;border:1px solid rgba(0,0,0,.10);border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,.06);min-width:0;overflow:hidden}
.contact-map-frame{height:450px;min-height:450px;position:relative;width:100%;overflow:hidden}
.contact-map-frame iframe{width:100% !important;height:100% !important;min-height:430px !important;border:none !important;display:block !important}
.contact-map-slab iframe{filter:none}
[data-contact-map-footer]{background:#fff;border-top:1px solid rgba(0,0,0,.08);box-shadow:none}
.sub-hero{padding:38px 0 24px}
.promo-strip{
  margin-top:22px;
  padding:var(--promo-pad-y) var(--promo-pad-x);
  border:1px solid rgba(230,50,46,.14);
  border-radius:var(--card-radius);
  background:linear-gradient(180deg,#ffffff,#fff7f6);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.promo-strip::after{content:none}
.promo-strip .placeholder-block-sm{min-width:240px}
.promo-actions{display:flex;gap:12px}
.promo-actions .placeholder-block-sm{width:120px}
.home-bottom-intro .container{display:grid;gap:20px}
.home-contact-card{margin-top:12px;padding:24px;border:1px solid rgba(0,0,0,.18);border-radius:12px;background:linear-gradient(145deg,#fff8f8 0%,#fff2f1 50%,#ffeceb 100%);box-shadow:0 16px 32px rgba(20,20,20,.12);display:grid;grid-template-columns:1.35fr .65fr;gap:20px;align-items:stretch}
.contact-summary{display:grid;gap:8px}
.contact-summary-kicker{margin:0;color:#8a6462;font-size:12px;letter-spacing:.12em;text-transform:uppercase}
.contact-summary-item{margin:0;color:#3c3232;line-height:1.58;font-size:15px}
.contact-summary-item strong{color:#231f1f}
.contact-summary-item a{color:#d12f2b;text-decoration:none}
.contact-summary-item a:hover{text-decoration:underline}
.contact-map-panel{border:1px solid rgba(0,0,0,.20);border-radius:14px;background:linear-gradient(180deg,#fffdfd,#fff5f4);display:grid;gap:10px;padding:18px;align-content:start}
.contact-map-title{margin:0;font-size:18px;color:#231f1f;font-weight:600}
.contact-map-desc{margin:0;color:#7a6766;font-size:13px;line-height:1.55}
.contact-map-btn{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 14px;border-radius:10px;background:linear-gradient(135deg,#eb4a46,#d42f2b);color:#fff;text-decoration:none;font-weight:600;box-shadow:0 8px 18px rgba(230,50,46,.26)}
.contact-map-btn:hover{filter:brightness(1.04)}
[data-contact-map-footer]{box-shadow:0 8px 18px rgba(230,50,46,.10)}
[data-contact-map-meta]{display:flex;flex-direction:column;justify-content:space-between;gap:12px}
@media (min-width:768px){
  [data-contact-map-meta]{flex-direction:row;align-items:flex-end}
}
[data-contact-nav-wrap]{display:flex;justify-content:flex-end;margin-left:auto;align-self:flex-end}
[data-contact-nav-cta]{white-space:nowrap}
.product-dynamic-card .card-body{padding:14px 16px}
.product-dynamic-title{margin:0;font-size:16px;line-height:1.4}
.product-dynamic-meta{margin:8px 0 0;color:var(--text-subtle);font-size:13px}
.product-matrix-main .product-dynamic-card .placeholder-image-16x9{aspect-ratio:4/3;max-height:260px;object-fit:cover}
.product-matrix-side .product-dynamic-card .placeholder-image-4x3{aspect-ratio:4/3;max-height:180px;object-fit:cover}
.product-matrix-side[data-home-product-list]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.home-horizontal-products{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;align-items:stretch}
.home-horizontal-products .product-dynamic-card{min-width:0}
.home-horizontal-products .product-dynamic-card .placeholder-image-4x3{aspect-ratio:4/3;height:168px;object-fit:contain;padding:6px 8px;background:#fff}
.home-horizontal-products .product-dynamic-card .card-body{min-height:76px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:10px}
.home-horizontal-products .product-dynamic-card .product-dynamic-title{font-size:14px;line-height:1.35}
.home-horizontal-products .product-dynamic-card .product-dynamic-meta{margin-top:4px;font-size:12px}

.pc-page{background:#f3f7ff}
.pc-page-title{margin:0;color:#12305f;font-size:34px;line-height:1.2;font-weight:700;letter-spacing:.01em}
.pc-main{width:min(var(--container),calc(100% - 52px));margin:0 auto 80px}
.pc-home-grid{display:grid;gap:18px;background:transparent}
.pc-filter-bar{padding:4px 0 8px}
.pc-filter-chip{display:inline-flex;align-items:center;justify-content:center;height:34px;padding:0 14px;border-radius:999px;border:1px solid rgba(22,93,255,.24);font-size:13px;color:#2b4670;text-decoration:none;background:#fff;transition:all .2s ease;white-space:nowrap}
.pc-filter-chip:hover{border-color:rgba(22,93,255,.5);color:#165dff;transform:translateY(-1px)}
.pc-filter-chip.is-active{background:#165dff;color:#fff;border-color:#165dff;box-shadow:0 8px 18px rgba(22,93,255,.24)}
.pc-center-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:20px;align-items:start}
/* 修改说明：产品中心侧边导航吸顶高度改为跟随站点头部高度变量，避免点击产品中心后布局错位。 */
.pc-tree-panel{padding:14px;background:linear-gradient(180deg,#fff,#f9fbff);position:sticky;top:calc(var(--header-h) + 14px);border:1px solid rgba(22,93,255,.16);max-height:calc(100vh - var(--header-h) - 40px);overflow:auto}
.pc-tree-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}
.pc-tree-title{margin:0;font-size:15px;line-height:1.4;color:#183b73}
.pc-tree-toggle{height:28px;padding:0 10px;border-radius:999px;border:1px solid rgba(22,93,255,.22);background:#fff;color:#2a4f85;font-size:12px;cursor:pointer;transition:all .2s ease}
.pc-tree-toggle:hover{color:#165dff;border-color:rgba(22,93,255,.48)}
.pc-tree-panel .product-tree-root,.pc-tree-panel .product-tree-children{list-style:none;margin:0;padding-left:12px}
.pc-tree-panel .product-tree-root{padding-left:0}
.pc-tree-panel .product-tree-root.is-collapsed{display:none}
.pc-tree-panel .product-tree-item{margin:2px 0}
.pc-tree-panel .product-tree-link{display:block;padding:7px 9px;border-radius:8px;font-size:13px;line-height:1.35;color:#2a4162;text-decoration:none;transition:all .2s ease}
.pc-tree-panel .product-tree-link:hover,.pc-tree-panel .product-tree-link.is-active{background:rgba(22,93,255,.10);color:#165dff}
.pc-uniform-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;align-items:stretch}
.pc-uniform-grid .product-dynamic-card{position:relative;display:flex;flex-direction:column;overflow:hidden;border:1px solid rgba(22,93,255,.12);border-radius:14px;background:linear-gradient(180deg,#ffffff,#f8fbff);text-decoration:none;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.pc-uniform-grid .product-dynamic-card:hover{transform:translateY(-4px);border-color:rgba(22,93,255,.35);box-shadow:0 14px 28px rgba(17,54,118,.16)}
.product-image-shell{height:186px;display:flex;align-items:center;justify-content:center;background:#eef4ff;padding:10px}
.pc-uniform-grid .product-dynamic-card .placeholder-image-4x3{width:100%;height:100%;object-fit:contain;background:transparent;padding:0}
.pc-uniform-grid .product-dynamic-card .card-body{padding:12px 12px 14px;display:grid;gap:6px;min-height:84px;align-content:start}
.pc-uniform-grid .product-dynamic-title{font-size:14px;line-height:1.4;margin:0;color:#172f55}
.pc-uniform-grid .product-dynamic-meta{font-size:12px;color:#4b648b;margin:0}
.product-card-cta{position:absolute;left:50%;bottom:14px;transform:translateX(-50%) translateY(8px);height:30px;line-height:30px;padding:0 14px;border-radius:999px;background:#165dff;color:#fff;font-size:12px;opacity:0;pointer-events:none;transition:all .2s ease;box-shadow:0 10px 20px rgba(22,93,255,.28)}
.pc-uniform-grid .product-dynamic-card:hover .product-card-cta{opacity:1;transform:translateX(-50%) translateY(0)}
.pc-fixed-rail{position:fixed;right:20px;top:42%;transform:translateY(-50%);z-index:1200;display:grid;gap:10px}
.pc-fixed-item{width:58px;height:58px;border-radius:8px;background:#fff;border:1px solid #e8e8e8;display:flex;flex-direction:column;align-items:center;justify-content:center;text-decoration:none;color:#222;font-size:11px;line-height:1.1;box-shadow:0 8px 20px rgba(0,0,0,.08)}
.pc-fixed-item span{font-size:16px;margin-bottom:4px}
.pc-fixed-item em{font-style:normal}
.pc-fixed-call{position:fixed;right:20px;bottom:24px;height:44px;line-height:44px;padding:0 20px;background:#d60b12;color:#fff;text-decoration:none;border-radius:4px;z-index:1200;font-size:14px}