:root {
  --primary: #2563eb;
  --primary-bright: #3b82f6;
  --primary-dark: #1e4ed8;
  --accent: #06b6d4;
  --gradient: linear-gradient(135deg, #2563eb, #06b6d4);
  --gradient-strong: linear-gradient(135deg, #1d4ed8, #06b6d4);
  --bg: #f5f7fb;
  --bg-2: #ffffff;
  --bg-card: #ffffff;
  --bg-card-2: #f8fafc;
  --border: #e5e9f2;
  --border-light: #d5dcec;
  --text: #1a2333;
  --text-muted: #4b5563;
  --text-dim: #8b95a8;
  --radius: 16px;
  --shadow: 0 16px 40px rgba(30, 60, 120, 0.10);
  --shadow-sm: 0 6px 18px rgba(30, 60, 120, 0.08);
  --glow: 0 8px 28px rgba(37, 99, 235, 0.22);
  --max-w: 1240px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 15px;
  overflow-x: hidden;
}

.site-header, main, .site-footer { position: relative; z-index: 1; }

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

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo-img { height: 46px; width: auto; display: block; object-fit: contain; border-radius: 6px; }

.main-nav { display: flex; gap: 4px; }
.nav-link {
  padding: 8px 15px; border-radius: 8px; font-size: 14px;
  color: var(--text-muted); font-weight: 500; transition: all .25s;
  position: relative;
}
.nav-link::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 4px; height: 2px;
  background: var(--gradient-strong); border-radius: 2px; transform: scaleX(0); transform-origin: left;
  transition: transform .25s ease;
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-link.active::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: 12px; }
.lang-toggle {
  padding: 6px 16px; border: 1px solid var(--border-light); border-radius: 8px;
  background: #fff; color: var(--primary); font-weight: 600; font-size: 13px;
  cursor: pointer; transition: all .25s;
}
.lang-toggle:hover { background: #eff6ff; border-color: var(--primary); }

.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.menu-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: all .3s; }

/* ===== Hero ===== */
.hero { position: relative; overflow: hidden; min-height: 88vh; display: flex; align-items: center; }
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 15% 15%, rgba(37, 99, 235, 0.10), transparent 50%),
    radial-gradient(ellipse at 85% 70%, rgba(6, 182, 212, 0.10), transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(30, 100, 220, 0.06), transparent 55%);
}
.hero-grid-overlay {
  position: absolute; inset: 0; opacity: 0.4;
  background-image: linear-gradient(rgba(37,99,235,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(37,99,235,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}
.hero-inner { position: relative; padding: 96px 24px 100px; }
.hero-content { max-width: 720px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 18px; border-radius: 100px;
  background: #eff6ff; color: var(--primary-dark);
  font-size: 13px; font-weight: 600; margin-bottom: 24px;
  border: 1px solid #dbeafe;
}
.hero-badge::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.hero-title { font-size: 56px; line-height: 1.18; font-weight: 800; letter-spacing: -1px; margin-bottom: 24px; }
.hero-title span { display: block; }
.gradient-text {
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero-sub { font-size: 18px; color: var(--text-muted); max-width: 620px; margin-bottom: 36px; }
.hero-cta { display: flex; gap: 16px; margin-bottom: 56px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 30px; border-radius: 10px; font-size: 15px; font-weight: 600;
  cursor: pointer; border: none; transition: all .25s; font-family: inherit;
  position: relative;
}
.btn-primary { background: var(--gradient-strong); color: #fff; box-shadow: 0 6px 22px rgba(37, 99, 235, 0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(37, 99, 235, 0.45); }
.btn-ghost {
  background: #fff; color: var(--primary);
  border: 1px solid var(--border-light);
}
.btn-ghost:hover { border-color: var(--primary); background: #eff6ff; }
.btn-white { background: #fff; color: var(--primary-dark); }
.btn-block { width: 100%; }
.btn:active { transform: translateY(0) scale(0.98); }
.btn-loading { position: relative; pointer-events: none; opacity: 0.8; }
.btn-loading::after {
  content: ""; display: inline-block; width: 14px; height: 14px; margin-left: 10px;
  border: 2px solid rgba(255,255,255,0.4); border-top-color: #fff; border-radius: 50%;
  animation: spin 0.7s linear infinite; vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hero-stats { display: flex; gap: 56px; flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; position: relative; padding-left: 20px; }
.stat::before { content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 3px; border-radius: 3px; background: var(--gradient-strong); }
.stat strong { font-size: 38px; font-weight: 800; color: var(--text); line-height: 1.1; }
.stat strong small { font-size: 18px; color: var(--primary); }
.stat span { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

/* ===== 通用 section ===== */
.section { padding: 84px 24px; }
.section-alt { background: #fff; }
.section-head { text-align: center; margin-bottom: 56px; }
.section-head .kicker {
  display: inline-block; font-size: 13px; letter-spacing: 3px; text-transform: uppercase;
  color: var(--primary); font-weight: 700; margin-bottom: 12px;
}
.section-head h2 { font-size: 38px; font-weight: 800; margin-bottom: 14px; color: var(--text); }
.section-head p { color: var(--text-muted); font-size: 16px; max-width: 680px; margin: 0 auto; }

/* ===== 业务卡片 ===== */
.biz-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.biz-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 36px 32px; transition: all .35s cubic-bezier(.4,0,.2,1); cursor: pointer; position: relative; overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.biz-card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 0%, rgba(37, 99, 235, 0.08), transparent 60%);
  opacity: 0; transition: opacity .35s;
}
.biz-card:hover { transform: translateY(-8px); box-shadow: var(--shadow); border-color: var(--border-light); }
.biz-card:hover::before { opacity: 1; }
.biz-icon { font-size: 44px; margin-bottom: 20px; transition: transform .35s ease; display: inline-block; position: relative; }
.biz-card:hover .biz-icon { transform: scale(1.15); }
.biz-card h3 { font-size: 21px; margin-bottom: 14px; color: var(--text); position: relative; }
.biz-card p { color: var(--text-muted); font-size: 14px; margin-bottom: 20px; position: relative; }
.biz-link { color: var(--primary); font-weight: 600; font-size: 14px; position: relative; }

/* ===== 品牌标签 ===== */
.brand-badge, .brand-tag-schneider, .brand-tag-toppdu {
  display: inline-block; padding: 3px 12px; border-radius: 100px;
  font-size: 12px; font-weight: 600; margin-bottom: 12px;
}
.brand-badge.brand-schneider, .brand-tag-schneider { background: #ecfdf5; color: #059669; border: 1px solid #a7f3d0; }
.brand-badge.brand-toppdu, .brand-tag-toppdu { background: #eff6ff; color: #2563eb; border: 1px solid #bfdbfe; }
.product-badges { margin-bottom: 4px; }

/* ===== 产品卡片（首页亮点） ===== */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.prod-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; transition: all .3s; box-shadow: var(--shadow-sm);
}
.prod-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--border-light); }
.prod-card h3 { font-size: 17px; margin-bottom: 10px; color: var(--text); }
.prod-card p { color: var(--text-muted); font-size: 13px; }

/* ===== 数字指标背书 ===== */
.metrics-band { background: var(--gradient-strong); }
.metrics-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; padding: 60px 24px; text-align: center; }
.metric strong { display: block; font-size: 44px; font-weight: 800; color: #fff; line-height: 1.1; }
.metric strong small { font-size: 22px; }
.metric span { color: rgba(255,255,255,0.85); font-size: 14px; }

/* ===== 场景展示 ===== */
.scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.scene-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: all .35s cubic-bezier(.4,0,.2,1); box-shadow: var(--shadow-sm);
}
.scene-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--border-light); }
.scene-card .scene-body { padding: 24px; }
.scene-card h3 { font-size: 20px; margin-bottom: 10px; color: var(--text); }
.scene-card p { color: var(--text-muted); font-size: 14px; }

/* ===== 客户墙 ===== */
.client-grid { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.client-logo {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 22px; border: 1px solid var(--border); border-radius: 12px;
  font-size: 15px; font-weight: 600; color: var(--text-muted);
  background: #fff; box-shadow: var(--shadow-sm);
  transition: all .25s;
}
.client-ic {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 8px; color: #fff;
  font-size: 15px; font-weight: 700; font-style: normal; flex-shrink: 0;
}
.client-logo:hover { color: var(--primary); border-color: var(--primary); box-shadow: var(--glow); transform: translateY(-2px); }

/* ===== CTA band ===== */
.cta-band { background: linear-gradient(135deg, #1e4ed8, #0891b2); }
.cta-inner { text-align: center; padding: 84px 24px; }
.cta-inner h2 { font-size: 34px; font-weight: 800; margin-bottom: 14px; color: #fff; }
.cta-inner p { margin-bottom: 30px; color: rgba(255,255,255,0.85); }

/* ===== 页面 banner ===== */
.page { display: none; }
.page.active { display: block; animation: fadeIn .35s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.page-banner {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, #1e4ed8, #0891b2);
  padding: 80px 24px; color: #fff; text-align: center;
}
.page-banner h1 { font-size: 42px; font-weight: 800; }
.page-banner p { opacity: 0.85; margin-top: 10px; font-size: 16px; letter-spacing: 2px; }

/* ===== 关于 ===== */
.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 44px; }
.about-main h2 { font-size: 30px; font-weight: 800; margin-bottom: 20px; color: var(--text); }
.about-main p { color: var(--text-muted); margin-bottom: 16px; }
.about-main h3 { font-size: 22px; margin: 30px 0 16px; color: var(--text); }
.about-list { list-style: none; }
.about-list li { padding: 10px 0 10px 30px; position: relative; color: var(--text); }
.about-list li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.about-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; margin-bottom: 22px; box-shadow: var(--shadow-sm); }
.about-card h3 { font-size: 18px; margin-bottom: 16px; color: var(--text); }
.info-list dt { font-size: 13px; color: var(--text-dim); }
.info-list dd { font-size: 14px; margin-bottom: 10px; color: var(--text); }
.cert-item { display: flex; align-items: center; gap: 12px; padding: 10px 0; }
.cert-badge { background: #eff6ff; color: var(--primary); font-weight: 700; padding: 4px 12px; border-radius: 6px; font-size: 13px; border: 1px solid #bfdbfe; }

/* ===== 资质认证板块 ===== */
.certs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.cert-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; transition: all .3s; text-align: center; box-shadow: var(--shadow-sm);
}
.cert-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--border-light); }
.cert-card .cert-img {
  display: block; width: 100%; max-width: 176px; height: auto; margin: 0 auto 16px; border-radius: 6px; cursor: pointer;
  border: 1px solid var(--border); background: #fff; transition: transform .3s;
}
.cert-card .cert-img:hover { transform: scale(1.03); }
.cert-card h3 { font-size: 17px; color: var(--text); margin-bottom: 6px; }
.cert-card .cert-code { font-size: 12px; color: var(--text-dim); margin-bottom: 4px; font-family: monospace; }
.cert-card p { font-size: 13px; color: var(--text-muted); }

/* ===== 产品筛选 ===== */
.filter-bar { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 44px; justify-content: center; }
.filter-btn {
  padding: 9px 22px; border: 1px solid var(--border); border-radius: 100px;
  background: #fff; color: var(--text-muted); font-size: 14px; cursor: pointer; transition: all .25s;
  font-family: inherit;
}
.filter-btn:hover { border-color: var(--primary); color: var(--primary); }
.filter-btn.active { background: var(--gradient-strong); color: #fff; border-color: transparent; box-shadow: var(--glow); }
.products-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.product-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 0; overflow: hidden; transition: all .35s cubic-bezier(.4,0,.2,1);
  display: flex; flex-direction: column; position: relative; box-shadow: var(--shadow-sm);
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--border-light); }
.product-card .product-img-wrap {
  height: 220px; overflow: hidden; background: #f8fafc; position: relative;
  display: flex; align-items: center; justify-content: center;
}
.product-card .product-img-wrap img {
  width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease;
}
.product-card:hover .product-img-wrap img { transform: scale(1.08); }
.product-card .product-body { padding: 28px; display: flex; flex-direction: column; flex: 1; }
.product-card .brand-badge { align-self: flex-start; }
.product-card h3 { font-size: 20px; margin-bottom: 10px; color: var(--text); }
.product-card p { color: var(--text-muted); font-size: 14px; flex: 1; margin-bottom: 16px; }
.product-card .spec-list { list-style: none; margin: 0 0 18px; font-size: 13px; color: var(--text-muted); }
.product-card .spec-list li { padding: 4px 0; padding-left: 20px; position: relative; }
.product-card .spec-list li::before { content: "▸"; position: absolute; left: 4px; color: var(--accent); }
.product-card .inq-btn {
  margin-top: auto; padding: 12px; border-radius: 8px;
  background: #eff6ff; color: var(--primary);
  font-weight: 600; font-size: 14px; text-align: center; cursor: pointer;
  transition: all .25s; border: 1px solid #dbeafe;
}
.product-card .inq-btn:hover { background: var(--gradient-strong); color: #fff; box-shadow: var(--glow); transform: translateY(-2px); }

/* ===== 算力 ===== */
.compute-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; margin-bottom: 44px; }
.compute-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 34px 32px; transition: all .3s; box-shadow: var(--shadow-sm);
}
.compute-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--border-light); }
.compute-card h3 { font-size: 21px; margin-bottom: 12px; color: var(--primary); }
.compute-card p { color: var(--text-muted); }
.compute-cta { text-align: center; }

/* ===== 案例 ===== */
.cases-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.case-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px; transition: all .35s cubic-bezier(.4,0,.2,1); position: relative; overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.case-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient-strong); transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--border-light); }
.case-card:hover::before { transform: scaleX(1); }
.case-tag { display: inline-block; padding: 3px 14px; border-radius: 100px; background: #eff6ff; color: var(--primary); font-size: 12px; font-weight: 600; margin-bottom: 14px; border: 1px solid #dbeafe; }
.case-card h3 { font-size: 20px; margin-bottom: 12px; color: var(--text); }
.case-card p { color: var(--text-muted); font-size: 14px; margin-bottom: 16px; }
.case-meta { font-size: 13px; color: var(--text-dim); border-top: 1px solid var(--border); padding-top: 14px; }

/* ===== 新闻 ===== */
.news-list { display: flex; flex-direction: column; gap: 22px; }
.news-item {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 0; overflow: hidden; display: flex; align-items: stretch; gap: 0;
  transition: all .3s cubic-bezier(.4,0,.2,1); cursor: pointer;
  box-shadow: var(--shadow-sm);
}
.news-item:hover { box-shadow: var(--shadow); border-color: var(--border-light); transform: translateY(-4px); }
.news-img {
  flex: 0 0 260px; position: relative; overflow: hidden; background: var(--border);
}
.news-img img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .5s ease;
}
.news-item:hover .news-img img { transform: scale(1.06); }
.news-body { padding: 24px 26px; flex: 1; display: flex; flex-direction: column; justify-content: center; }
.news-item h3 { font-size: 19px; margin-bottom: 8px; transition: color .2s; color: var(--text); }
.news-item:hover h3 { color: var(--primary); }
.news-item .news-date { font-size: 13px; color: var(--text-dim); }
.news-item p { color: var(--text-muted); font-size: 14px; line-height: 1.7; }
.news-top { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.news-cat {
  display: inline-block; padding: 3px 12px; border-radius: 999px;
  font-size: 12px; font-weight: 600; line-height: 1.6;
}
.cat-company { background: #eef2ff; color: #4338ca; }
.cat-industry { background: #ecfdf5; color: #047857; }
.cat-milestone { background: #fff7ed; color: #c2410c; }
@media (max-width: 640px) {
  .news-item { flex-direction: column; }
  .news-img { flex: 0 0 auto; height: 180px; }
  .news-body { padding: 18px 20px; }
}

/* ===== 联系 ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: 44px; }
.contact-info h2 { font-size: 28px; font-weight: 800; margin-bottom: 14px; color: var(--text); }
.contact-info > p { color: var(--text-muted); margin-bottom: 28px; }
.contact-item { display: flex; gap: 16px; padding: 14px 0; }
.c-icon { font-size: 22px; width: 36px; text-align: center; }
.contact-item strong { display: block; font-size: 14px; color: var(--text); }
.contact-item p { color: var(--text-muted); font-size: 14px; }

.contact-form-wrap { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow-sm); }
.form-tabs { display: flex; gap: 8px; margin-bottom: 26px; border-bottom: 1px solid var(--border); }
.form-tab {
  padding: 11px 18px; background: none; border: none; border-bottom: 2px solid transparent;
  font-size: 15px; color: var(--text-muted); cursor: pointer; font-weight: 500; font-family: inherit;
  transition: all .2s;
}
.form-tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { margin-bottom: 16px; }
.form-field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px;
  font-size: 14px; font-family: inherit; transition: all .2s;
  background: #fff; color: var(--text);
}
.form-field input::placeholder, .form-field textarea::placeholder { color: var(--text-dim); }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}
.form-tip { margin-top: 12px; font-size: 13px; text-align: center; }
.form-tip.success { color: #16a34a; animation: fadeIn 0.3s ease; }
.form-tip.error { color: #dc2626; animation: shake 0.4s ease; }
@keyframes shake { 0%,100%{transform:translateX(0)} 20%,60%{transform:translateX(-6px)} 40%,80%{transform:translateX(6px)} }

/* ===== 页脚 ===== */
.site-footer { background: #111827; color: #cbd5e1; margin-top: 56px; border-top: 1px solid #1f2937; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr 1.2fr; gap: 40px; padding: 60px 24px 44px; }
.footer-logo { margin-bottom: 16px; }
.footer-logo-img {
  height: 58px; width: auto; display: block; object-fit: contain;
  background: #fff; border-radius: 10px; padding: 6px 10px;
}
.footer-about p { font-size: 13px; color: #9ca3af; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer-col a { display: block; color: #9ca3af; font-size: 13px; padding: 5px 0; transition: all .2s; }
.footer-col a:hover { color: #60a5fa; }
.footer-col p { color: #9ca3af; font-size: 13px; padding: 5px 0; }
.footer-bottom { border-top: 1px solid #1f2937; padding: 20px 24px; }
.footer-bottom p { font-size: 12px; color: #6b7280; text-align: center; }
.footer-bottom a { color: #9ca3af; }

/* ===== 图片查看器（证书放大） ===== */
.lightbox {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: rgba(0, 0, 0, 0.9); align-items: center; justify-content: center; cursor: zoom-out;
  padding: 40px;
}
.lightbox.open { display: flex; }
.lightbox img { width: auto; height: auto; object-fit: contain; max-width: 92vw; max-height: 88vh; border-radius: 8px; box-shadow: 0 0 60px rgba(0,0,0,0.8); }

/* ===== 无障碍与表单增强 ===== */
/* 蜜罐字段：对真人不可见，但对自动脚本可被填充，用于识别垃圾提交 */
.hp-field {
  position: absolute !important;
  left: -9999px !important;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

/* 键盘聚焦可见性（提升可访问性） */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.inq-btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 6px;
}

/* 联系信息中的电话/邮件链接 */
.contact-item a,
.footer-col a[href^="tel"],
.footer-col a[href^="mailto"] {
  color: inherit;
  transition: color .2s;
}
.contact-item a:hover,
.footer-col a[href^="tel"]:hover,
.footer-col a[href^="mailto"]:hover { color: var(--primary); }
.footer-col a[href^="tel"]:hover,
.footer-col a[href^="mailto"]:hover { color: #60a5fa; }

/* 提交失败时的邮件兜底链接 */
.form-tip a { color: inherit; text-decoration: underline; }

/* 客户墙改为纯文字展示后，保持卡片视觉均衡 */
.client-logo { min-width: 118px; justify-content: center; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .hero-title { font-size: 40px; }
  .biz-grid, .prod-grid, .metrics-inner { grid-template-columns: repeat(2, 1fr); }
  .products-grid, .compute-grid, .cases-grid, .certs-grid, .scene-grid { grid-template-columns: 1fr; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .main-nav {
    display: none; position: absolute; top: 72px; left: 0; right: 0;
    background: #fff; flex-direction: column; padding: 16px 24px;
    border-bottom: 1px solid var(--border); box-shadow: var(--shadow);
  }
  .main-nav.open { display: flex; }
  .menu-toggle { display: flex; }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .hero-title { font-size: 32px; }
  .biz-grid, .prod-grid, .metrics-inner { grid-template-columns: 1fr; }
  .hero-stats { gap: 28px; }
  .stat strong { font-size: 28px; }
}

/* ===== 导航 8 项时的紧凑显示 ===== */
@media (max-width: 1150px) {
  .nav-link { padding: 8px 10px; font-size: 13px; }
}

/* ===== 在线选型入口（首页/产品页） ===== */
.calc-cta { margin-top: 42px; }
.calc-cta a {
  display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  padding: 22px 30px; border-radius: var(--radius);
  background: linear-gradient(135deg, #eff6ff, #e0f2fe);
  border: 1px dashed #93c5fd; transition: all .25s;
}
.calc-cta a span { color: var(--text-muted); font-size: 15px; }
.calc-cta a strong { color: var(--primary); font-size: 15px; white-space: nowrap; }
.calc-cta a:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); transform: translateY(-2px); }

/* ===== 产品参数对比表 ===== */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius); }
.spec-table {
  width: 100%; border-collapse: collapse; background: #fff;
  box-shadow: var(--shadow-sm); border: 1px solid var(--border); font-size: 13.5px;
}
.spec-table th {
  background: #f1f5fb; color: var(--text); font-weight: 700;
  padding: 14px 16px; text-align: left; white-space: nowrap;
  border-bottom: 2px solid var(--border-light);
}
.spec-table td { padding: 13px 16px; color: var(--text-muted); border-bottom: 1px solid var(--border); vertical-align: top; }
.spec-table tbody tr:last-child td { border-bottom: none; }
.spec-table tbody tr:hover { background: #f8fafc; }
.spec-table td:first-child { color: var(--text); font-weight: 600; white-space: nowrap; }
.table-note { text-align: center; color: var(--text-dim); font-size: 12.5px; margin-top: 14px; }

/* ===== 服务流程 ===== */
.process-list { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; counter-reset: step; }
.process-item {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; position: relative; box-shadow: var(--shadow-sm); overflow: hidden;
}
.process-item::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  position: absolute; top: 20px; right: 22px; font-size: 32px; font-weight: 800;
  color: #e2e8f0; line-height: 1;
}
.process-item h3 { font-size: 17px; margin-bottom: 8px; color: var(--primary-dark); }
.process-item p { color: var(--text-muted); font-size: 13px; }

/* ===== 服务承诺 SLA ===== */
.sla-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.sla-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 22px; text-align: center; box-shadow: var(--shadow-sm);
}
.sla-card strong { display: block; font-size: 30px; font-weight: 800; color: var(--primary); line-height: 1.15; }
.sla-card strong small { font-size: 14px; font-weight: 700; }
.sla-card span { display: block; margin-top: 8px; font-size: 13px; color: var(--text-muted); }
.sla-note { text-align: center; color: var(--text-dim); font-size: 12.5px; margin-top: 16px; }

/* ===== FAQ ===== */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: 12px; margin-bottom: 14px; overflow: hidden; }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 18px 24px; font-weight: 600;
  font-size: 15px; color: var(--text); display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--primary); font-size: 20px; font-weight: 700; flex-shrink: 0; transition: transform .25s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-a { padding: 0 24px 20px; color: var(--text-muted); font-size: 14px; line-height: 1.9; }

/* ===== 技术洞察 ===== */
.ins-intro { text-align: center; color: var(--text-muted); max-width: 720px; margin: -28px auto 10px; }
.zh-only-note { display: none; text-align: center; color: var(--text-dim); font-size: 12.5px; margin-bottom: 22px; }
html[lang="en"] .zh-only-note { display: block; }
.ins-list { display: flex; flex-direction: column; gap: 20px; max-width: 920px; margin: 0 auto; }
.ins-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); overflow: hidden; }
.ins-item summary { list-style: none; cursor: pointer; padding: 26px 54px 26px 30px; position: relative; }
.ins-item summary::-webkit-details-marker { display: none; }
.ins-item summary::after {
  content: "+"; position: absolute; top: 22px; right: 26px;
  color: var(--primary); font-size: 22px; font-weight: 700; line-height: 1;
  transition: transform .25s;
}
.ins-item[open] summary::after { transform: rotate(45deg); }
.ins-item summary:hover h3 { color: var(--primary); }
.ins-item summary h3 { font-size: 19px; color: var(--text); margin-bottom: 8px; transition: color .2s; }
.ins-item summary p { color: var(--text-muted); font-size: 14px; }
.ins-meta { display: flex; gap: 14px; align-items: center; font-size: 12.5px; color: var(--text-dim); margin-bottom: 10px; }
.ins-cat { padding: 2px 10px; border-radius: 999px; background: #eff6ff; color: var(--primary); font-weight: 600; }
.ins-body { padding: 6px 30px 28px; border-top: 1px dashed var(--border); }
.ins-body h4 { color: var(--text); font-size: 15px; margin: 18px 0 8px; }
.ins-body p { color: var(--text-muted); font-size: 14.5px; line-height: 2; margin-bottom: 12px; }

/* ===== 在线选型计算器 ===== */
.calc-grid { display: grid; grid-template-columns: 380px 1fr; gap: 30px; align-items: stretch; }
.calc-panel { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-sm); }
.calc-result { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-sm); }
.calc-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-height: 300px; color: var(--text-dim); font-size: 14px; text-align: center; gap: 12px; padding: 20px;
}
.calc-empty::before { content: "⚙️"; font-size: 36px; }
.calc-res-head { font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 14px; }
.calc-res-line { display: flex; justify-content: space-between; gap: 18px; padding: 12px 0; border-bottom: 1px dashed var(--border); font-size: 14px; }
.calc-res-line .k { color: var(--text-muted); flex-shrink: 0; }
.calc-res-line .v { color: var(--text); font-weight: 600; text-align: right; }
.calc-res-tag {
  display: inline-block; background: #eff6ff; color: var(--primary-dark); font-weight: 700;
  padding: 8px 14px; border-radius: 8px; font-size: 14px; margin: 6px 0;
}
.calc-tips { list-style: none; margin-top: 14px; }
.calc-tips li { padding: 6px 0 6px 22px; position: relative; color: var(--text-muted); font-size: 13px; }
.calc-tips li::before { content: "▸"; position: absolute; left: 2px; color: var(--accent); }
.calc-note { margin-top: 16px; font-size: 12.5px; color: var(--text-dim); }
.calc-actions { margin-top: 22px; }
.calc-disclaimer { text-align: center; color: var(--text-dim); font-size: 12.5px; margin-top: 18px; }
.check-field { display: flex; align-items: center; gap: 10px; margin: 18px 0 20px; }
.check-field input { width: 16px; height: 16px; accent-color: var(--primary); }
.check-field label { font-size: 14px; font-weight: 600; margin: 0; }

/* ===== 隐私声明 ===== */
.privacy-note { margin-top: 14px; font-size: 12.5px; color: var(--text-dim); text-align: center; }
.privacy-note details { margin-top: 6px; text-align: left; }
.privacy-note summary { cursor: pointer; color: var(--text-dim); text-decoration: underline dotted; }
.privacy-note p { margin-top: 6px; line-height: 1.8; text-align: left; }

/* ===== 企业信息卡 / 授权说明 ===== */
.about-side .about-card { margin-bottom: 22px; }
.about-side .about-card:last-child { margin-bottom: 0; }
.partner-note { margin-top: 14px; font-size: 12.5px; color: var(--text-dim); line-height: 1.8; }

/* ===== 响应式补充 ===== */
@media (max-width: 900px) {
  .process-list { grid-template-columns: 1fr 1fr; }
  .sla-grid { grid-template-columns: 1fr 1fr; }
  .calc-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .process-list { grid-template-columns: 1fr; }
  .sla-grid { grid-template-columns: 1fr; }
}

/* Equipment categories above the featured product catalog */
.equipment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: 20px;
}
.equipment-card {
  padding: 24px;
  border: 1px solid var(--border, #dbe3ef);
  border-radius: 12px;
  background: var(--bg-card, transparent);
}
.equipment-card h3 { margin-bottom: 8px; }
.equipment-card p { color: var(--text-muted); }
.equipment-featured { margin: 48px 0 20px; }

.case-intro { margin-bottom: 24px; color: var(--text-muted); }

/* Homepage */
#page-home .hero {
  min-height: 0;
  color: #f5f9ff;
  background: #08182d;
}
#page-home .hero-bg {
  background: radial-gradient(ellipse at 75% 80%, #143e64, transparent 65%);
}
#page-home .hero-inner {
  width: 100%;
  z-index: 1;
  padding: clamp(30px, 4vw, 54px) clamp(24px, 5vw, 64px);
}
#page-home .hero-content { --animate-duration: 550ms; min-width: 0; }
#page-home .hero-title { font-size: clamp(32px, 4vw, 54px); }
#page-home .hero-title .gradient-text { background-image: linear-gradient(110deg, #88c6ff, #67e8e0); }
#page-home .hero-sub { color: #c0d2e6; }
#page-home .hero-cta { flex-wrap: wrap; margin-bottom: 0; }
#page-home .hero {
  min-height: 0;
  margin-top: 12px;
  isolation: isolate;
}
.hero-backdrop, #page-home .hero::after {
  position: absolute; inset: 0; width: 100%; height: 100%;
}
.hero-backdrop { object-fit: cover; object-position: 65% center; }
#page-home .hero::after {
  content: "";
  background: linear-gradient(90deg, #061426f5 0%, #061426d9 34%, #06142640 76%), linear-gradient(0deg, #06142680, transparent 55%);
  pointer-events: none;
}
body:has(#page-home.active) .site-header {
  position: sticky; top: 10px;
  width: min(calc(100% - 32px), var(--max-w));
  margin: 10px auto 0;
  border-radius: 12px;
  border: 1px solid #ffffff70; background: #f4f8f3ed;
}
.home-case-showcase {
  display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
  gap: clamp(16px, 4vw, 56px); align-items: stretch;
}
.home-case-choices { display: grid; align-content: start; }
.home-case-choices button {
  min-height: 58px; padding: 12px 16px; text-align: start;
  border: 0; border-bottom: 1px solid var(--border);
  background: transparent; color: var(--text); font: inherit; cursor: pointer;
}
.home-case-choices button:hover, .home-case-choices button[aria-pressed="true"] {
  background: #dce9f8; color: var(--primary-dark);
}
.home-case-showcase .case-card { height: 100%; }
.home-icon { display: block; flex: 0 0 auto; filter: invert(32%) sepia(75%) saturate(2500%) hue-rotate(205deg); }
.home-editorial { padding: clamp(44px, 6vw, 82px) 0; }
.home-editorial:has(#home-systems), .home-editorial:has(#home-cases) { background: #eaf0f8; }
.home-section-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}
.home-section-header h2 { margin: 4px 0 8px; font-size: clamp(26px, 3.4vw, 40px); line-height: 1.2; }
.home-section-header p, .home-scenario p, .home-system p, .home-steps p { color: var(--text-muted); }
.home-eyebrow, .home-index, .home-step-number { color: var(--primary-dark); font-size: 12px; font-weight: 750; letter-spacing: .1em; }
.home-text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  padding: 6px 0;
  color: var(--primary-dark);
  font-weight: 700;
}
.home-text-link:hover, .home-text-link:focus-visible { text-decoration: underline; }
.home-text-link .home-icon { width: 17px; height: 17px; }
.home-scenarios, .home-systems-grid, .home-steps { display: grid; gap: 14px; }
.home-scenarios { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.home-systems-grid, .home-steps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.home-scenario, .home-system, .home-steps li {
  padding: 21px;
  background: #fff;
  border: 1px solid #d8e4f2;
  border-radius: 12px;
}
.home-scenario h3, .home-steps h3 { margin: 6px 0; }
.home-system { display: flex; gap: 12px; align-items: start; }
.home-system h3 { margin-bottom: 4px; }
.home-scenario p, .home-system p, .home-steps p { font-size: 14px; }
.home-steps { list-style: none; padding: 0; }
.home-steps li { border-top: 2px solid #6da5f4; }
@media (max-width: 900px) {
  .home-scenarios, .home-systems-grid, .home-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 680px) {
  body:has(#page-home.active) .site-header { width: calc(100% - 20px); top: 10px; }
  #page-home .hero::after { background: linear-gradient(90deg, #061426ed, #06142699); }
  .home-case-showcase { grid-template-columns: 1fr; }
  #page-home .hero-sub { margin-bottom: 20px; }
  #page-home .hero-cta { gap: 8px; }
  #page-home .hero-cta .btn { padding-inline: 15px; }
  .home-section-header { align-items: start; flex-direction: column; gap: 8px; }
}
@media (max-width: 460px) {
  .home-scenarios, .home-systems-grid, .home-steps { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  #page-home .hero-content { animation: none; }
}

@media (max-width: 560px) {
  #page-home .metrics-inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  #page-home .metric strong { font-size: 30px; }
}

#page-home .hero-company {
  display: table;
  margin-bottom: 14px;
  color: #e2effc;
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 700;
}
#page-home .hero-company:hover, #page-home .hero-company:focus-visible {
  color: #91e4f0;
  text-decoration: underline;
}

/* Keep homepage sections on a common reading grid. */
#page-home > .section { padding-block: clamp(44px, 6vw, 78px); }
#page-home > .section .section-head { margin-bottom: clamp(22px, 4vw, 38px); }
#page-home .section-head h2 { font-size: clamp(26px, 3.4vw, 40px); line-height: 1.2; }
#page-home .biz-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
#page-home .biz-card { display: flex; flex-direction: column; align-items: flex-start; padding: 24px; }
#page-home .biz-card h3 { font-size: clamp(17px, 1.65vw, 21px); line-height: 1.35; margin-bottom: 10px; }
#page-home .biz-card p { line-height: 1.65; }
#page-home .biz-icon { margin-bottom: 14px; }
#page-home .biz-link { margin-top: auto; }
#page-home .metrics-inner { padding-block: clamp(28px, 4vw, 48px); }
@media (max-width: 960px) {
  #page-home .biz-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 520px) {
  #page-home .biz-grid { grid-template-columns: 1fr; }
  #page-home .biz-card { padding: 20px; }
}

/* Equal content edges and complete rows across homepage sections. */
#page-home { --home-gap: clamp(14px, 1.6vw, 22px); }
#page-home > .section, #page-home > .home-editorial { padding-block: clamp(44px, 6vw, 80px); }
#page-home > .section-alt { padding-inline: 0; }
#page-home > .section-alt > .section-head { padding-inline: 24px; }
#page-home .home-section-header { justify-content: center; text-align: center; flex-direction: column; align-items: center; gap: 8px; }
#page-home .home-section-header p { max-width: 640px; margin-inline: auto; }
#page-home :is(.biz-grid, .home-scenarios, .home-systems-grid, .home-steps, .scene-grid, .prod-grid, .cases-grid) { gap: var(--home-gap); }
#page-home :is(.home-scenario, .home-system, .home-steps li, .scene-card, .prod-card, .case-card) {
  border-radius: 12px;
  border: 1px solid #d8e4f2;
  box-shadow: none;
}
#page-home :is(.biz-card, .scene-card, .prod-card, .case-card):hover { transform: translateY(-2px); }
#page-home :is(.scene-grid, .cases-grid) { grid-template-columns: repeat(3, minmax(0, 1fr)); }
#page-home .scene-icon { margin: 24px 24px 0; }
#page-home .scene-body { padding-top: 12px; }
#page-home .client-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; }
#page-home .client-logo { min-width: 0; text-align: center; }
#page-home .hero { background: #0a1b30; }
#page-home .hero-bg { background: radial-gradient(ellipse at 75% 65%, #183e60, transparent 65%); }
#page-home .metrics-band { background: #102d4c; }
#page-home .cta-band { background: #102d4c; }
.photo-credit { font-size: 12px; }
:is(#page-solutions, #page-operations, #page-products, #page-service) .equipment-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 960px) {
  #page-home :is(.home-scenarios, .prod-grid) { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  #page-home .client-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  :is(#page-solutions, #page-operations, #page-products) .equipment-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 680px) {
  #page-home :is(.scene-grid, .cases-grid), #page-service .equipment-grid { grid-template-columns: 1fr; }
  #page-home .client-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 520px) {
  #page-home :is(.home-scenarios, .home-systems-grid, .home-steps, .prod-grid),
  :is(#page-solutions, #page-operations, #page-products) .equipment-grid { grid-template-columns: 1fr; }
  #page-home .client-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* Full-page starfield behind the site's reading surfaces. */
#starfield {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
body { background: #eaf2fb; }
#app { background: transparent; }
.section-alt { background: #ffffff66; }
.home-editorial:has(#home-systems), .home-editorial:has(#home-cases) { background: #d6e5f84d; }
#page-home .hero, .page-banner { background: #0b2139b5; }
#page-home .hero-bg { background: radial-gradient(ellipse at 22% 55%, #081b33c9, transparent 82%); }
#page-home .hero-grid-overlay { display: none; }
#page-home .metrics-band, #page-home .cta-band { background: #102d4cdd; }

/* Shared footer */
.site-footer { margin-top: 0; background: #0a1b30; color: #cedded; border-color: #264461; }
.footer-inner {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 60px);
  padding-block: clamp(34px, 5vw, 62px);
}
.footer-brand { display: flex; align-items: center; gap: 12px; color: #fff; font-size: 16px; font-weight: 700; }
.footer-brand img { flex: 0 0 auto; width: 52px; height: 44px; object-fit: contain; border-radius: 6px; background: #fff; }
.footer-about p { margin: 14px 0 18px; color: #b7ccdf; font-size: 14px; }
.footer-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid #6585a5;
  border-radius: 7px;
  color: #e6f4ff;
  font-size: 14px;
}
.footer-action img { filter: invert(1); }
.footer-inner h2 { margin: 0 0 14px; color: #fff; font-size: 16px; }
.footer-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 14px; list-style: none; padding: 0; }
.footer-links a, .footer-contact a { color: #d5e7f8; }
.footer-links a { display: inline-block; padding-block: 4px; }
.footer-inner a:hover, .footer-inner a:focus-visible { color: #98dcff; text-decoration: underline; }
.footer-contact dl { display: grid; gap: 8px; margin: 0; }
.footer-contact dl > div { display: grid; grid-template-columns: minmax(54px, auto) 1fr; gap: 8px; }
.footer-contact dt { color: #9eb8d1; }
.footer-contact dd { margin: 0; overflow-wrap: anywhere; }
.footer-bottom { padding: 14px 0; border-color: #29445f; }
.footer-bottom > .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 20px; }
.footer-bottom p { color: #b3c8df; text-align: start; }
.footer-bottom a { color: #d5e7f8; }
@media (max-width: 900px) {
  .footer-inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-about { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
  .footer-about { grid-column: auto; }
  .footer-inner > :not(:first-child) { border-top: 1px solid #29445f; padding-top: 18px; }
}

/* Short, one-time entrances and feedback on interactive elements. */
@keyframes card-enter {
  from { opacity: .55; translate: 0 12px; }
  to { opacity: 1; translate: 0 0; }
}
.card-entered {
  animation: card-enter 480ms cubic-bezier(.2, .75, .35, 1) var(--card-enter-delay, 0ms) backwards;
}
.home-text-link .home-icon, .footer-action img { transition: translate 180ms ease; }
.home-text-link:is(:hover, :focus-visible) .home-icon,
.footer-action:is(:hover, :focus-visible) img { translate: 3px -3px; }
#page-home .biz-card:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
#page-home .biz-card:active { transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .card-entered { animation: none; }
  .home-text-link .home-icon, .footer-action img { transition: none; }
  .home-text-link:is(:hover, :focus-visible) .home-icon,
  .footer-action:is(:hover, :focus-visible) img { translate: none; }
  #page-home .biz-card { transition: none; }
  #page-home .biz-card:hover { transform: none; }
}

/* Interactive system chains */
.systems-map { background: #0e2945eb; color: #e4effb; padding-block: clamp(45px, 6.5vw, 94px); }
.systems-map-inner { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(24px, 5vw, 72px); align-items: center; }
.systems-map-kicker { color: #8ad8f3; font-size: 12px; font-weight: 700; letter-spacing: .12em; }
.systems-map-intro h2 { color: #fff; font-size: clamp(27px, 3.5vw, 43px); line-height: 1.18; margin: 9px 0 16px; }
.systems-map-intro > p:not(.systems-map-kicker) { color: #c4d8ee; }
.systems-map-link { color: #a6e4fa; display: inline-flex; align-items: center; gap: 7px; margin-top: 18px; font-weight: 700; }
.systems-map-link:hover, .systems-map-link:focus-visible { text-decoration: underline; }
.systems-map-link img, .system-chain summary img { filter: invert(89%) sepia(24%) saturate(1015%) hue-rotate(163deg); flex: none; }
.systems-map-diagrams { display: grid; gap: 10px; }
.system-chain { border: 1px solid #456a89; border-radius: 10px; background: #0b2037; }
.system-chain[open] { border-color: #76bad9; }
.system-chain summary { min-height: 50px; display: flex; align-items: center; gap: 10px; padding: 9px 14px; color: #f2f8ff; font-weight: 700; cursor: pointer; list-style: none; }
.system-chain summary::-webkit-details-marker { display: none; }
.system-chain summary:focus-visible { outline: 2px solid #b4e9ff; outline-offset: 2px; border-radius: 8px; }
.chain-chevron { width: 8px; height: 8px; margin-left: auto; border-right: 2px solid #a6e4fa; border-bottom: 2px solid #a6e4fa; transform: rotate(45deg); }
.system-chain[open] .chain-chevron { transform: rotate(225deg); }
.chain-content { padding: 0 14px 15px; color: #c3d9ed; font-size: 14px; }
.chain-nodes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); list-style: none; padding: 0; margin: 12px 0 0; gap: 20px; }
.chain-nodes li { position: relative; display: grid; place-items: center; min-height: 56px; padding: 8px; text-align: center; color: #e8f8ff; background: #163c58; border: 1px solid #5c9eb8; border-radius: 7px; }
.chain-nodes li:not(:last-child)::after { content: ""; position: absolute; top: 50%; left: 100%; width: 21px; height: 2px; background: #8ce8ff; transform-origin: left; animation: chain-connect 480ms ease-out both; }
@keyframes chain-connect { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@media (max-width: 760px) { .systems-map-inner { grid-template-columns: 1fr; } }
@media (max-width: 420px) {
  .chain-nodes { gap: 14px; }
  .chain-nodes li { font-size: 12px; }
  .chain-nodes li:not(:last-child)::after { width: 15px; }
}
@media (prefers-reduced-motion: reduce) { .chain-nodes li:not(:last-child)::after { animation: none; } }

/* Interactive equipment placement plan */
.floorplan { padding-block: clamp(44px, 6vw, 80px); background: #d6e5f84d; }
.floorplan-header { text-align: center; margin: 0 auto 25px; }
.floorplan-header h2 { margin: 5px 0 8px; font-size: clamp(26px, 3.4vw, 40px); line-height: 1.2; }
.floorplan-header p { color: var(--text-muted); }
.floorplan-layout { display: grid; grid-template-columns: minmax(0, 3fr) minmax(230px, 1fr); gap: 16px; align-items: stretch; }
.floorplan-board { border: 1px solid #426686; border-radius: 14px; padding: 16px; background: #0b223a; color: #e2f0fc; }
.floorplan-legend { color: #b3cde5; font-size: 13px; margin-bottom: 12px; }
.floorplan-detail { border: 1px solid #c5d9ec; border-radius: 14px; padding: clamp(16px, 2.3vw, 28px); background: #f8fbff; }
.floorplan-detail-label { color: #355d83; font-size: 13px; font-weight: 700; }
.floorplan-detail h3 { font-size: clamp(20px, 2vw, 29px); line-height: 1.24; margin: 10px 0; }
.floorplan-detail-zone { display: table; padding: 3px 8px; border-radius: 6px; color: #254e77; background: #dfeefa; font-size: 13px; margin-bottom: 12px; }
.floorplan-detail [data-floor-detail="description"] { color: var(--text-muted); }
.floorplan-more { display: inline-block; margin-top: 15px; color: var(--primary-dark); font-weight: 700; }
.floorplan-more:hover, .floorplan-more:focus-visible { text-decoration: underline; }
@media (max-width: 850px) { .floorplan-layout { grid-template-columns: minmax(0, 1fr); } }
.floorplan-scroll { overflow-x: auto; scrollbar-color: #7499b7 #102a40; border-radius: 8px; }
.floorplan-scroll:focus-visible { outline: 2px solid #a7e2f9; outline-offset: 2px; }
.floorplan-stage { position: relative; width: 100%; min-width: 670px; aspect-ratio: 960 / 590; }
.floorplan-drawing { display: block; width: 100%; height: 100%; }
.plan-equipment-frame { fill: #213d55; stroke: #7396af; stroke-width: 1.5; }
.plan-equipment-detail { fill: none; stroke: #9ac2d5; stroke-width: 1.65; }
.plan-asset-selected .plan-equipment-frame { fill: #216781; stroke: #b4f5ff; stroke-width: 3; }
.plan-asset-selected .plan-equipment-detail { stroke: #dbfbff; }
.floorplan-zone, .floorplan-hotspot {
  position: absolute; left: var(--plan-x); top: var(--plan-y); width: var(--plan-w); height: var(--plan-h);
}
.floorplan-zone { display: grid; place-items: center start; color: #e8f4fd; font-size: 13px; font-weight: 700; pointer-events: none; }
.floorplan-zone-corridor { place-items: center; background: #0c2135; color: #b5cfdf; font-size: 12px; }
.floorplan-hotspot { border: 0; border-radius: 4px; background: transparent; color: #e9f5ff; cursor: pointer; font: inherit; }
.floorplan-hotspot:hover { background: #92e5ff28; }
.floorplan-hotspot:focus-visible { outline: 2px solid #c2f3ff; outline-offset: 2px; z-index: 1; }
.floorplan-pin { position: absolute; top: -6px; left: -4px; display: grid; place-items: center; min-width: 20px; height: 20px; padding-inline: 3px; border-radius: 50%; background: #a6d9ec; color: #102a40; font-size: 9px; font-weight: 800; }
.floorplan-hotspot[aria-pressed="true"] .floorplan-pin { color: #0b2037; background: #b8f5ff; box-shadow: 0 0 0 3px #67d4ee66; }
.floorplan-device-label {
  position: absolute; left: 50%; bottom: 1px; transform: translateX(-50%);
  padding: 0 3px; border-radius: 2px; white-space: nowrap; background: #0b223ae8; color: #edf9ff;
  font-size: 9px; font-weight: 700; line-height: 1.25;
}
.floorplan-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.floorplan-pan-hint { display: none; margin-top: 8px; color: #b5cfdf; font-size: 12px; }
@media (max-width: 1020px) { .floorplan-pan-hint { display: block; } }
@media (max-width: 560px) { .floorplan-board { padding: 10px; } }

/* Isometric equipment cutaway and external callouts */
.floorplan-stage { aspect-ratio: 900 / 550; }
.floorplan-board { background: #eaf2fa; border-color: #c0d4e6; }
.floorplan-legend, .floorplan-pan-hint { color: #395776; }
.floorplan-scroll { scrollbar-color: #7499b7 #dbe8f4; }
.plan-side { stroke: #17344e; stroke-width: 1.25; }
.plan-front { fill: #52768d; }
.plan-right { fill: #304f68; }
.plan-wall { fill: #91adc1; stroke: #c0d7e7; stroke-width: 1; opacity: .82; }
.plan-asset-selected .plan-side { fill: #2b94b3; stroke: #b4f5ff; stroke-width: 2; }
.plan-liquid-route { fill: none; stroke: #61cfff; stroke-width: 3; stroke-dasharray: 6 5; }
.plan-leader { fill: none; stroke: #285f88; stroke-width: 1.5; stroke-dasharray: 4 3; }
.plan-leader-dot { fill: #b4f5ff; stroke: #285f88; }
.floorplan-hotspot { transform: translate(-50%, -50%); width: 23px; height: 23px; border-radius: 50%; }
.floorplan-pin { position: static; min-width: 22px; height: 22px; border: 1px solid #143d5a; }
.floorplan-device-label { display: none; }
.floorplan-callout {
  display: flex; align-items: center; gap: 4px; width: max-content; height: auto; min-height: 30px;
  padding: 3px 7px 3px 4px; border: 1px solid #8eacc5; border-radius: 6px; background: #f9fcff; color: #163957;
}
.floorplan-callout .floorplan-device-label { display: block; position: static; transform: none; background: none; color: inherit; font-size: 11px; }
.floorplan-callout:hover, .floorplan-callout[aria-pressed="true"] { background: #d6f4ff; border-color: #3e85a5; }
.floorplan-hotspot:focus-visible { outline-color: #236491; }

/* Match each numbered marker, piece of equipment and index entry. */
[data-plan-asset] .plan-equipment-frame { fill: color-mix(in srgb, var(--device-color) 44%, #132e48); stroke: var(--device-color); }
[data-plan-asset] .plan-front { fill: color-mix(in srgb, var(--device-color) 53%, #162e44); }
[data-plan-asset] .plan-right { fill: color-mix(in srgb, var(--device-color) 31%, #102a42); }
[data-plan-asset] .plan-equipment-detail { stroke: color-mix(in srgb, var(--device-color) 72%, white); }
[data-plan-asset="racks"] .plan-equipment-detail rect { fill: color-mix(in srgb, var(--device-color) 58%, #173955); }
[data-plan-asset].plan-asset-selected :is(.plan-side, .plan-equipment-frame, .plan-equipment-detail rect) { stroke: #fff; stroke-width: 2.2; }
.plan-panel-line { fill: none; stroke: #102739; stroke-width: 1; opacity: .65; }
.plan-panel-light { fill: #ecf9ff; }
.floorplan-hotspot .floorplan-pin, .floorplan-index-number { background: var(--device-color); color: #102538; }
.floorplan-hotspot[aria-pressed="true"] .floorplan-pin { background: var(--device-color); box-shadow: 0 0 0 2px #fff, 0 0 0 4px #1b506d; }
.floorplan-index { margin-top: 15px; padding: 16px; background: #f8fbff; border: 1px solid #c5d9ec; border-radius: 12px; }
.floorplan-index h3 { font-size: 16px; margin-bottom: 10px; }
.floorplan-index-list { list-style: none; display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 6px; padding: 0; margin: 0; }
.floorplan-index button { display: flex; align-items: center; gap: 7px; text-align: start; width: 100%; min-height: 38px; border: 1px solid #d3e2ee; border-radius: 6px; background: #fff; color: #15354e; padding: 4px 7px; font: inherit; font-size: 13px; cursor: pointer; }
.floorplan-index button:hover, .floorplan-index button[aria-pressed="true"] { border-color: #467a9e; background: #e9f4fc; }
.floorplan-index-number { flex: none; display: grid; place-items: center; border-radius: 50%; width: 22px; height: 22px; font-size: 10px; font-weight: 800; }
@media (max-width: 800px) { .floorplan-index-list { grid-template-columns: repeat(2,minmax(0,1fr)); } }

/* Named callouts around the cutaway. */
.floorplan-stage { aspect-ratio: 1140 / 640; min-width: 840px; }
.floorplan-callout { max-width: 110px; min-height: 26px; gap: 3px; padding: 2px 4px; }
.floorplan-callout .floorplan-device-label { white-space: normal; text-align: start; font-size: 10px; }
.floorplan-callout .floorplan-pin { flex: none; min-width: 19px; height: 19px; }
.floorplan-drawing .plan-leader { stroke: #496b88; stroke-width: 1.4; opacity: .82; }
.floorplan-drawing .plan-leader-dot { fill: #fff; stroke: #254e71; }
@media (max-width: 1180px) { .floorplan-pan-hint { display: block; } }

.article-entry { display: inline-block; margin-top: .7rem; color: #17598f; font-weight: 700; text-decoration: underline; text-underline-offset: .18em; }
.product-body .article-entry { margin-bottom: .65rem; }
.floorplan-detail .article-entry { display: table; }

@media (prefers-reduced-motion: no-preference) {
  #page-home.active .hero-build [data-plan-asset] {
    animation: room-install .3s ease-out var(--build-delay) both;
  }
  #page-home.active .hero-build .plan-liquid-route {
    stroke-dasharray: 1;
    animation: room-pipe .8s ease-out var(--pipe-delay) both;
  }
  #page-home.active .hero-build-labels span {
    animation: room-label var(--step-duration) step-end var(--label-delay) both;
  }
  #page-home.active .hero-build-labels span:last-child {
    animation-name: room-label-last;
  }
  #homeCasesGrid .case-card { animation: case-appear .28s ease-out both; }
}
@keyframes room-install {
  0% { opacity: 0; transform: translateY(-55px); }
  72% { opacity: 1; filter: brightness(1.4); }
  100% { opacity: 1; transform: translateY(0); }
}
@keyframes room-label {
  from { visibility: hidden; }
  1% { visibility: visible; }
  to { visibility: hidden; }
}
@keyframes room-label-last {
  from { visibility: hidden; }
  1% { visibility: visible; }
  to { visibility: visible; }
}
@keyframes room-pipe {
  0% { opacity: 0; stroke-dashoffset: 1; }
  12% { opacity: 1; }
  100% { opacity: 1; stroke-dashoffset: 0; }
}
@keyframes case-appear {
  from { opacity: .45; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Homepage photography and section rhythm */
#page-home .home-editorial:has(#home-solutions) {
  background: #0b1b2c;
  color: #f5f9ff;
}
#page-home :is(.home-section-header, .scenario-copy) p { max-width: 48rem; }
#page-home #home-solutions + p,
#page-home .scenario-copy p { color: #c5d6e7; }
#page-home .home-editorial:has(#home-solutions) :is(.home-eyebrow, .home-text-link, .article-entry) {
  color: #91d7ff;
}
#page-home .home-scenarios {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}
#page-home .home-scenario {
  overflow: hidden;
  padding: 0;
  background: #12273c;
  border: 1px solid #34516b;
}
.scenario-media, .scene-media {
  overflow: hidden;
  aspect-ratio: 16 / 8;
  background: #193149;
}
.scenario-media img, .scene-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.home-scenario:hover .scenario-media img, .scene-card:hover .scene-media img {
  transform: scale(1.03);
}
.scenario-copy { padding: clamp(20px, 3vw, 34px); }
.scenario-copy h3 { font-size: clamp(21px, 2.5vw, 30px); }
#page-home .scene-card:has(.scene-media) {
  display: block;
  overflow: hidden;
  padding: 0;
}
.scene-card:has(.scene-media) .scene-body { padding: 24px; }

/* The room model occupies its own visual column beside the headline. */
#page-home .hero:has(.hero-build) .hero-backdrop { opacity: .24; }
#page-home .hero-build-stage {
  position: absolute;
  right: max(4%, calc((100% - var(--max-w)) / 2 + 32px));
  top: 9%;
  width: min(45%, 560px);
  height: 82%;
  z-index: 1;
  pointer-events: none;
}
#page-home .hero-build {
  filter: drop-shadow(0 16px 24px #020b1c);
}
.hero-build-labels {
  position: absolute;
  inset: auto 0 0;
  display: grid;
  justify-items: center;
  color: #fff;
}
.hero-build-labels span {
  grid-area: 1 / 1;
  visibility: hidden;
  padding: .4rem .85rem;
  border: 1px solid #78c3ed80;
  border-radius: 6px;
  background: #071c30;
  font-size: clamp(15px, 1.35vw, 19px);
  font-weight: 650;
  text-align: center;
}
#page-home .hero:has(.hero-build) .hero-content { max-width: min(51%, 595px); }
#page-home .hero:has(.hero-build) .hero-sub { color: #e0eaf5; }
.page-banner:has(.page-banner-media) {
  text-align: left;
  background: #132a42;
  padding: clamp(28px, 4vw, 54px) max(24px, calc((100% - var(--max-w)) / 2 + 24px));
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 72px);
  align-items: center;
}
.page-banner:has(.page-banner-media) .container {
  grid-column: 1;
  grid-row: 1;
  width: 100%;
  padding: 0;
}
.page-banner:has(.page-banner-media) h1 {
  font-size: clamp(28px, 3.5vw, 48px);
  line-height: 1.2;
  text-wrap: balance;
}
.page-banner:has(.page-banner-media) p { letter-spacing: normal; max-width: 38em; }
.page-banner-media {
  grid-column: 2;
  grid-row: 1;
  width: 100%;
  height: clamp(150px, 15vw, 230px);
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid #ffffff38;
}
#page-products .page-banner-media, #page-selector .page-banner-media {
  object-fit: contain;
  background: #f4f8fc;
}
@media (max-width: 760px) {
  #page-home .hero:has(.hero-build) .hero-content { max-width: 100%; }
  #page-home .hero:has(.hero-build) .hero-inner { padding-bottom: min(64vw, 330px); }
  #page-home .hero-build-stage { inset: auto 7% 24px; width: 86%; height: min(53vw, 270px); }
  .page-banner:has(.page-banner-media) { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .page-banner-media { grid-column: 1; grid-row: 2; height: clamp(120px, 34vw, 190px); }
}
@media (max-width: 680px) {
  #page-home .home-scenarios { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .scenario-media img, .scene-media img { transition: none; }
  .home-scenario:hover .scenario-media img, .scene-card:hover .scene-media img { transform: none; }
}

#page-about > .section { padding-block: clamp(28px, 4vw, 56px); }
#page-about .about-grid { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: clamp(20px, 4vw, 48px); align-items: start; }
#page-about .about-side { display: grid; gap: 16px; }
#page-about .about-side .about-list { margin-bottom: 0; }
#page-about .section-head { text-align: left; margin-bottom: 24px; }
#page-about .section-head p { margin-inline: 0; }
#page-about .certs-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
#page-about .cert-card { display: flex; flex-direction: column; padding: 18px 12px; }
#page-about .cert-img { width: auto; max-width: 100%; height: 176px; object-fit: contain; }
.cert-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: auto; padding-top: 14px; }
.cert-link { display: inline-block; padding: 5px 10px; border: 1px solid var(--border); border-radius: 6px; color: var(--text); font-size: 13px; }
.cert-link:hover, .cert-link:focus-visible { text-decoration: underline; }
@media (max-width: 900px) {
  #page-about .certs-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  #page-about .about-grid { grid-template-columns: 1fr; }
}
@media (max-width: 360px) {
  #page-about .certs-grid { grid-template-columns: 1fr; }
}