/* ============================================================
   创通利达 · 企业官网样式系统
   主色：深科技蓝 #123E8C / 亮蓝 #1E6FE8 / 青色高光 #22D3EE
   ============================================================ */

:root {
  --primary: #123E8C;
  --primary-dark: #0B2A5B;
  --primary-light: #1E6FE8;
  --accent: #22D3EE;
  --ink: #16233A;
  --body: #4B5B73;
  --muted: #66788F;
  --bg: #FFFFFF;
  --bg-alt: #F4F7FB;
  --line: #E3EAF4;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 10px rgba(18, 62, 140, 0.06);
  --shadow-md: 0 10px 30px rgba(18, 62, 140, 0.10);
  --shadow-lg: 0 20px 50px rgba(11, 42, 91, 0.16);
  --font: 'Inter', "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --container: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--body);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

h1, h2, h3, h4 { color: var(--ink); line-height: 1.3; font-weight: 700; }

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

/* ---------- 通用区块 ---------- */
.section { padding: 88px 0; }
.section.alt { background: var(--bg-alt); }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head .kicker {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 4px;
  color: var(--primary-light);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-head h2 { font-size: 34px; margin-bottom: 14px; }
.section-head p { color: var(--body); font-size: 17px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
}
.btn-primary {
  background: linear-gradient(120deg, var(--primary), var(--primary-light));
  color: #fff;
  box-shadow: 0 8px 20px rgba(30, 111, 232, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(30, 111, 232, 0.45); }
.btn-ghost { border-color: rgba(255, 255, 255, 0.55); color: #fff; background: rgba(255,255,255,0.08); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.18); transform: translateY(-2px); }
.btn-outline { border-color: var(--primary); color: var(--primary); background: #fff; }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s ease, border-color .3s ease;
}
.site-header.scrolled { border-bottom-color: var(--line); box-shadow: var(--shadow-sm); }

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo {
  height: 40px;
  width: auto;
  display: block;
}
.brand-text { line-height: 1.2; }
.brand-text strong { display: block; font-size: 17px; color: var(--ink); letter-spacing: 1px; }
.brand-text span { font-size: 11px; color: var(--muted); letter-spacing: 2px; }

.nav-menu { display: flex; align-items: center; gap: 34px; }
.nav-menu a {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  padding: 6px 0;
  transition: color .2s ease;
}
.nav-menu a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--primary-light), var(--accent));
  transition: width .25s ease;
}
.nav-menu a:hover, .nav-menu a.active { color: var(--primary-light); }
.nav-menu a:hover::after, .nav-menu a.active::after { width: 100%; }

.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-phone { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--primary); font-size: 15px; }
.nav-phone svg { flex: none; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  align-items: center; justify-content: center;
  flex-direction: column; gap: 5px;
}
.nav-toggle span {
  display: block; width: 20px; height: 2px;
  background: var(--ink); border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 172px 0 96px;
  color: #fff;
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(34, 211, 238, 0.28), transparent 60%),
    radial-gradient(700px 500px at -10% 110%, rgba(30, 111, 232, 0.35), transparent 55%),
    linear-gradient(135deg, #0B2A5B 0%, #123E8C 55%, #1B5FC9 100%);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(closest-side at 70% 30%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(closest-side at 70% 30%, #000 0%, transparent 78%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  font-size: 13px; font-weight: 600; letter-spacing: 1px;
  margin-bottom: 24px;
}
.hero-badge i {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}
.hero h1 {
  color: #fff;
  font-size: 46px;
  letter-spacing: 2px;
  margin-bottom: 20px;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, #7DD3FC, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.82);
  max-width: 560px;
  margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero 右侧装饰面板 */
.hero-panel {
  position: relative;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-lg);
  padding: 30px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow-lg);
}
.hero-panel h3 { color: #fff; font-size: 16px; letter-spacing: 2px; margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.hero-panel h3::before { content: ""; width: 4px; height: 16px; border-radius: 2px; background: var(--accent); }
.hero-metric { display: flex; justify-content: space-between; align-items: baseline; padding: 14px 0; border-bottom: 1px dashed rgba(255,255,255,0.18); }
.hero-metric:last-child { border-bottom: none; }
.hero-metric span { color: rgba(255,255,255,0.72); font-size: 14px; }
.hero-metric strong { color: #fff; font-size: 22px; font-weight: 800; }
.hero-metric strong small { font-size: 12px; font-weight: 500; color: rgba(255,255,255,0.6); margin-left: 4px; }

/* ---------- 数据看板 ---------- */
.stats { margin-top: 40px; position: relative; z-index: 5; }
.stats-grid {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
}
.stat-item { padding: 34px 24px; text-align: center; position: relative; }
.stat-item + .stat-item::before {
  content: ""; position: absolute; left: 0; top: 26%;
  height: 48%; width: 1px; background: var(--line);
}
.stat-item .num {
  font-size: 40px; font-weight: 800; color: var(--primary);
  line-height: 1.1; letter-spacing: 1px;
}
.stat-item .num small { font-size: 16px; font-weight: 700; color: var(--primary-light); margin-left: 2px; }
.stat-item p { margin-top: 6px; font-size: 14px; color: var(--muted); }

/* ---------- 卡片网格 ---------- */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(30, 111, 232, 0.35);
}
.card-icon {
  width: 54px; height: 54px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(18, 62, 140, 0.10), rgba(30, 111, 232, 0.14));
  color: var(--primary-light);
  margin-bottom: 20px;
}
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--body); }
.card .tags { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; }
.card .tags span {
  font-size: 12px; color: var(--primary);
  background: rgba(30, 111, 232, 0.08);
  border-radius: 999px; padding: 4px 12px;
}

/* ---------- 行业条 ---------- */
.industry-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.industry-item {
  position: relative;
  border-radius: var(--radius);
  padding: 30px 24px;
  color: #fff;
  overflow: hidden;
  background: linear-gradient(140deg, var(--primary-dark), var(--primary) 60%, var(--primary-light));
  min-height: 150px;
  display: flex; flex-direction: column; justify-content: flex-end;
  transition: transform .3s ease, box-shadow .3s ease;
}
.industry-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.industry-item::after {
  content: ""; position: absolute; right: -30px; top: -30px;
  width: 110px; height: 110px; border-radius: 50%;
  background: rgba(34, 211, 238, 0.18);
}
.industry-item h3 { color: #fff; font-size: 20px; letter-spacing: 2px; }
.industry-item p { font-size: 13px; color: rgba(255,255,255,0.75); margin-top: 4px; }

/* ---------- 关于摘要 ---------- */
.about-split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.about-copy .kicker { color: var(--primary-light); font-weight: 600; letter-spacing: 3px; font-size: 14px; }
.about-copy h2 { font-size: 32px; margin: 10px 0 18px; }
.about-copy p { margin-bottom: 14px; }
.about-copy ul { margin: 18px 0 26px; display: grid; gap: 10px; }
.about-copy ul li { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; }
.about-copy ul li svg { flex: none; margin-top: 5px; color: var(--primary-light); }

.info-panel {
  background: linear-gradient(160deg, #0B2A5B, #123E8C 70%, #1B5FC9);
  border-radius: var(--radius-lg);
  color: #fff;
  padding: 36px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.info-panel::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(closest-side at 80% 0%, #000, transparent 80%);
  -webkit-mask-image: radial-gradient(closest-side at 80% 0%, #000, transparent 80%);
}
.info-panel h3 { color: #fff; font-size: 18px; margin-bottom: 20px; letter-spacing: 2px; position: relative; }
.info-panel dl { position: relative; display: grid; gap: 0; }
.info-panel .row {
  display: flex; justify-content: space-between; gap: 20px;
  padding: 13px 0;
  border-bottom: 1px dashed rgba(255,255,255,0.18);
  font-size: 14px;
}
.info-panel .row:last-child { border-bottom: none; }
.info-panel dt { color: rgba(255,255,255,0.65); flex: none; }
.info-panel dd { color: #fff; text-align: right; font-weight: 500; }

/* ---------- 新闻卡片 ---------- */
.news-card { display: flex; flex-direction: column; padding: 0; overflow: hidden; }
.news-cover {
  height: 150px;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary) 55%, var(--primary-light));
  position: relative;
  display: flex; align-items: flex-end;
  padding: 18px 22px;
}
.news-cover::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 28px 28px;
}
.news-cover .cat {
  position: relative;
  font-size: 12px; font-weight: 600;
  color: #fff;
  background: rgba(255,255,255,0.16);
  border: 1px solid rgba(255,255,255,0.3);
  padding: 4px 12px; border-radius: 999px;
  backdrop-filter: blur(4px);
}
.news-body { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.news-body time { font-size: 13px; color: var(--muted); margin-bottom: 8px; }
.news-body h3 { font-size: 17px; margin-bottom: 10px; transition: color .2s ease; }
.news-card:hover .news-body h3 { color: var(--primary-light); }
.news-body p { font-size: 14px; color: var(--body); flex: 1; }
.news-body .more {
  margin-top: 16px; font-size: 14px; font-weight: 600; color: var(--primary-light);
  display: inline-flex; align-items: center; gap: 6px;
}

/* ---------- CTA 横幅 ---------- */
.cta-band {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    radial-gradient(600px 260px at 90% 0%, rgba(34, 211, 238, 0.25), transparent 60%),
    linear-gradient(120deg, #0B2A5B, #123E8C 60%, #1B5FC9);
  color: #fff;
  padding: 60px 56px;
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
  box-shadow: var(--shadow-lg);
}
.cta-band h2 { color: #fff; font-size: 30px; margin-bottom: 8px; }
.cta-band p { color: rgba(255,255,255,0.8); }

/* ---------- 页脚 ---------- */
.site-footer {
  background: #0A1F42;
  color: rgba(255, 255, 255, 0.72);
  padding: 64px 0 0;
  margin-top: 0;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 44px;
}
.footer-brand strong { color: #fff; font-size: 18px; display: block; margin-bottom: 12px; letter-spacing: 1px; }
.footer-brand p { max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; letter-spacing: 1px; }
.footer-col ul { display: grid; gap: 10px; }
.footer-col a:hover { color: var(--accent); }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; }
.footer-contact svg { flex: none; margin-top: 4px; color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  padding: 20px 0;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  color: rgba(255, 255, 255, 0.45);
  font-size: 13px;
}

/* ---------- 内页横幅 ---------- */
.page-banner {
  position: relative;
  padding: 168px 0 84px;
  color: #fff;
  background:
    radial-gradient(700px 320px at 85% 0%, rgba(34, 211, 238, 0.25), transparent 60%),
    linear-gradient(135deg, #0B2A5B, #123E8C 60%, #1B5FC9);
  overflow: hidden;
}
.page-banner::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(closest-side at 75% 25%, #000, transparent 80%);
  -webkit-mask-image: radial-gradient(closest-side at 75% 25%, #000, transparent 80%);
}
.page-banner .crumb { position: relative; font-size: 13px; color: rgba(255,255,255,0.7); margin-bottom: 14px; letter-spacing: 1px; }
.page-banner .crumb a:hover { color: var(--accent); }
.page-banner h1 { position: relative; color: #fff; font-size: 40px; letter-spacing: 2px; margin-bottom: 12px; }
.page-banner p { position: relative; max-width: 640px; color: rgba(255,255,255,0.8); }

/* ---------- 时间轴 ---------- */
.timeline { position: relative; max-width: 820px; margin: 0 auto; padding-left: 34px; }
.timeline::before {
  content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px;
  width: 2px; border-radius: 2px;
  background: linear-gradient(180deg, var(--primary-light), var(--accent));
}
.timeline-item { position: relative; padding: 0 0 40px 26px; }
.timeline-item::before {
  content: ""; position: absolute; left: -34px; top: 6px;
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff;
  border: 4px solid var(--primary-light);
  box-shadow: 0 0 0 5px rgba(30, 111, 232, 0.12);
}
.timeline-item .year { font-size: 22px; font-weight: 800; color: var(--primary); letter-spacing: 1px; }
.timeline-item h3 { font-size: 17px; margin: 6px 0 6px; }
.timeline-item p { font-size: 14.5px; }

/* ---------- 业务详情块 ---------- */
.biz-block {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
}
.biz-block[id] { scroll-margin-top: 110px; }
.biz-block:last-of-type { border-bottom: none; }
.biz-block:nth-child(even) { direction: rtl; }
.biz-block:nth-child(even) > * { direction: ltr; }
.biz-visual {
  border-radius: var(--radius-lg);
  min-height: 260px;
  background:
    radial-gradient(320px 200px at 80% 10%, rgba(34, 211, 238, 0.22), transparent 60%),
    linear-gradient(140deg, #0B2A5B, #123E8C 65%, #1B5FC9);
  position: relative;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
}
.biz-visual::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 30px 30px;
}
.biz-visual .icon-wrap {
  position: relative;
  width: 96px; height: 96px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.25);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  backdrop-filter: blur(6px);
}
.biz-copy .no { font-size: 14px; font-weight: 800; letter-spacing: 3px; color: var(--accent); }
.biz-copy h3 { font-size: 26px; margin: 8px 0 12px; }
.biz-copy > p { margin-bottom: 18px; }
.biz-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 20px; }
.biz-list li { display: flex; gap: 9px; align-items: flex-start; font-size: 14.5px; }
.biz-list svg { flex: none; margin-top: 5px; color: var(--primary-light); }

/* ---------- 流程步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.step {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 24px 26px;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease;
}
.step:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.step .idx {
  width: 46px; height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-weight: 800; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
  box-shadow: 0 6px 14px rgba(30, 111, 232, 0.3);
}
.step h3 { font-size: 17px; margin-bottom: 8px; }
.step p { font-size: 13.5px; }

/* ---------- 新闻筛选 ---------- */
.news-filter { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin-bottom: 44px; }
.news-filter button {
  padding: 9px 22px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--body);
  font-size: 14px; font-weight: 600;
  cursor: pointer;
  transition: all .25s ease;
  font-family: var(--font);
}
.news-filter button:hover { border-color: var(--primary-light); color: var(--primary-light); }
.news-filter button.active {
  background: linear-gradient(120deg, var(--primary), var(--primary-light));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 6px 16px rgba(30, 111, 232, 0.3);
}
.news-item { transition: opacity .3s ease, transform .3s ease; }
.news-item.hide { display: none; }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 40px; align-items: start; }
.contact-cards { display: grid; gap: 18px; }
.contact-card {
  display: flex; gap: 18px; align-items: flex-start;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.contact-card .card-icon { margin-bottom: 0; width: 48px; height: 48px; }
.contact-card h3 { font-size: 16px; margin-bottom: 4px; }
.contact-card p { font-size: 14.5px; }

.form-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
}
.form-panel h3 { font-size: 20px; margin-bottom: 6px; }
.form-panel > p { font-size: 14px; color: var(--muted); margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; display: grid; gap: 7px; }
.form-group label { font-size: 14px; font-weight: 600; color: var(--ink); }
.form-group label i { color: #E5484D; font-style: normal; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 14.5px;
  font-family: var(--font);
  color: var(--ink);
  background: #FBFCFE;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.form-group textarea { resize: vertical; min-height: 110px; }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(30, 111, 232, 0.14);
  background: #fff;
}
.form-tip { font-size: 13px; color: var(--muted); margin-top: 12px; }
.form-success {
  display: none;
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: 10px;
  background: rgba(23, 163, 74, 0.10);
  border: 1px solid rgba(23, 163, 74, 0.35);
  color: #157347;
  font-size: 14px;
}
.form-success.show { display: block; }

/* ---------- 表格（工商信息） ---------- */
.info-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--line);
  font-size: 14.5px;
}
.info-table th, .info-table td {
  padding: 15px 22px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.info-table tr:last-child th, .info-table tr:last-child td { border-bottom: none; }
.info-table th {
  width: 220px;
  background: var(--bg-alt);
  color: var(--ink);
  font-weight: 600;
  white-space: nowrap;
}

/* ---------- 价值观 ---------- */
.value-card { text-align: center; padding: 36px 26px; }
.value-card .card-icon { margin: 0 auto 18px; }
.value-card h3 { letter-spacing: 2px; }

/* ---------- 滚动动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .industry-strip { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-panel { max-width: 520px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 960px) {
  .nav-menu, .nav-phone { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-menu.open {
    display: flex;
    position: absolute;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    padding: 8px 24px 16px;
  }
  .nav-menu.open a { padding: 13px 4px; border-bottom: 1px solid var(--line); }
  .nav-menu.open a:last-child { border-bottom: none; }
  .about-split, .contact-grid, .biz-block { grid-template-columns: 1fr; gap: 32px; }
  .biz-block:nth-child(even) { direction: ltr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item + .stat-item::before { display: none; }
  .cta-band { flex-direction: column; align-items: flex-start; padding: 44px 32px; }
  .section { padding: 64px 0; }
  .section-head h2 { font-size: 28px; }
}

@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2, .steps, .industry-strip { grid-template-columns: 1fr; }
  .hero { padding: 148px 0 72px; }
  .hero h1 { font-size: 32px; }
  .page-banner h1 { font-size: 30px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .biz-list { grid-template-columns: 1fr; }
  .stats { margin-top: 28px; }
  .stat-item .num { font-size: 32px; }
}

/* ---------- 无障碍：键盘焦点指示 ---------- */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--primary-light);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- 无障碍：页脚细字对比度 ---------- */
.footer-bottom { color: rgba(255, 255, 255, 0.6); }

/* ---------- 无障碍：尊重减弱动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    transition-delay: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ============================================================
   首页视频 Hero（VEX 风格融合）
   ============================================================ */

/* ---------- 液态玻璃 ---------- */
.liquid-glass {
  background: rgba(0, 0, 0, 0.4);
  background-blend-mode: luminosity;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: none;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}
.liquid-glass::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.4px;
  background: linear-gradient(180deg,
    rgba(255,255,255,0.3) 0%, rgba(255,255,255,0.1) 20%,
    rgba(255,255,255,0) 40%, rgba(255,255,255,0) 60%,
    rgba(255,255,255,0.1) 80%, rgba(255,255,255,0.3) 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* ---------- 视频 Hero 主体 ---------- */
.hero-video {
  position: relative;
  height: 100dvh;
  min-height: 620px;
  overflow: hidden;
  background: #000;
  color: #fff;
}
.hero-video-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-video-inner {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-bottom: 72px;
}
.hero-video-grid { display: grid; gap: 36px; }
.hero-video h1 {
  color: #fff;
  font-weight: 400;
  letter-spacing: -0.04em;
  font-size: 42px;
  line-height: 1.18;
  margin-bottom: 16px;
}
.char-anim .line { display: block; }
.char-anim .char {
  display: inline-block;
  opacity: 0;
  transform: translateX(-18px);
  transition: opacity .5s ease, transform .5s ease;
}
.char-anim.on .char { opacity: 1; transform: translateX(0); }
.hero-video-sub {
  color: #E5E7EB;
  font-size: 17px;
  max-width: 560px;
  margin-bottom: 22px;
}
.fade-in { opacity: 0; transition: opacity 1s ease; }
.fade-in.on { opacity: 1; }
.hero-video-actions { display: flex; flex-wrap: wrap; gap: 16px; }

.btn.btn-white { background: #fff; color: #0A0A0A; box-shadow: none; }
.btn.btn-white:hover { background: #F3F4F6; transform: translateY(-2px); }
.btn.btn-glass { color: #fff; }
.btn.btn-glass:hover { background: #fff; color: #0A0A0A; transform: translateY(-2px); }

.hero-tag { display: flex; align-items: flex-end; }
.hero-tag .tag-card { padding: 14px 26px; border-radius: 16px; }
.hero-tag .tag-card span { font-weight: 300; font-size: 20px; letter-spacing: 1px; color: #fff; }

@media (min-width: 1024px) {
  .hero-video-grid { grid-template-columns: 1fr 1fr; align-items: end; }
  .hero-video h1 { font-size: 64px; }
  .hero-tag { justify-content: flex-end; }
}
@media (max-width: 640px) {
  .hero-video h1 { font-size: 34px; }
  .hero-video-inner { padding-bottom: 48px; }
}

/* ---------- 关于页 Logo ---------- */
.about-logo { height: 96px; width: auto; margin-bottom: 24px; }

/* ---------- 视频页液态玻璃导航 ---------- */
.site-header.header-video {
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: none;
}
.site-header.header-video.scrolled { border-bottom-color: transparent; box-shadow: none; }
.header-video .nav-bar {
  height: auto;
  margin-top: 24px;
  padding: 8px 16px;
  border-radius: 16px;
}
.header-video .brand-text strong { color: #fff; }
.header-video .brand-text span { color: rgba(255, 255, 255, 0.6); }
.header-video .nav-menu a { color: #fff; }
.header-video .nav-menu a:hover,
.header-video .nav-menu a.active { color: #D1D5DB; }
.header-video .nav-menu a::after { background: #fff; }
.header-video .nav-phone { color: #fff; }
.header-video .nav-toggle {
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(255, 255, 255, 0.30);
}
.header-video .nav-toggle span { background: #fff; }
@media (max-width: 960px) {
  .header-video .nav-menu.open {
    top: 96px;
    left: 24px;
    right: 24px;
    border-radius: 16px;
  }
}

/* ============================================================
   核心业务整屏动效画布（HeroAnimation 复刻）
   ============================================================ */
.biz-hero {
  position: relative;
  height: 879px;
  min-height: 800px;
  overflow: hidden;
  background: #fff;
}
.biz-hero-canvas { position: absolute; inset: 0; overflow: hidden; }
.biz-hero-svg {
  --x: 0px;
  --y: 0px;
  display: block;
  min-height: 800px;
  width: 100%;
  height: 100%;
}
.biz-skew { transform-origin: center center; }
.biz-y-container { transform: translateY(calc(100% + var(--y))); }
.biz-x-container { transform: translateX(calc(100% + var(--x))); }
.biz-row { transform: translate(var(--x), var(--y)); }
.biz-hero-svg.biz-is-animating .biz-y-container {
  transition: transform 1s cubic-bezier(.165, .84, .44, 1);
}
.biz-hero-svg.biz-is-animating .biz-row {
  transition: transform .75s cubic-bezier(.23, 1, .32, 1);
}
.biz-hero-svg.biz-is-animating .biz-row.is-hidden {
  transform: translate(var(--x), calc(72px + var(--y)));
}
.biz-shadow {
  transition: opacity .75s cubic-bezier(.23, 1, .32, 1);
}
.biz-shadow.is-hidden { opacity: 0; }

.biz-hero-copy { position: relative; z-index: 2; height: 100%; padding: 210px 24px 0 267px; }
.biz-hero-copy .kicker {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 4px;
  color: var(--primary-light);
  margin-bottom: 12px;
}
.biz-hero-copy h2 { font-size: 36px; margin-bottom: 14px; }
.biz-hero-copy p { max-width: 340px; font-size: 16.5px; color: var(--body); }

/* 业务卡片区块（第三屏） */
.biz-cards { padding-top: 72px; }

@media (min-width: 1200px) {
  .biz-hero { height: 889px; }
}

@media (min-width: 1500px) {
  .biz-hero { height: 914px; }
}

@media (min-width: 1800px) {
  .biz-hero { height: 964px; }
}

@media (max-width: 960px) {
  .biz-hero { height: 760px; min-height: 760px; }
  .biz-hero-canvas { top: 130px; }
  .biz-hero-svg { width: 860px; height: 680px; max-width: none; transform: translateX(-235px); }
  .biz-hero-copy { height: auto; padding: 64px 24px 0; }
  .biz-hero-copy h2 { font-size: 28px; }
  .biz-hero-copy p { max-width: 100%; font-size: 15px; }
}

@media (max-width: 640px) {
  .biz-hero { height: 700px; min-height: 700px; }
  .biz-hero-canvas { top: 155px; }
  .biz-hero-svg { width: 780px; height: 620px; transform: translateX(-245px); }
  .biz-hero-copy { padding-top: 52px; }
}
.hero-video {
  position: relative;
  height: 100dvh;
  min-height: 620px;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 42%, rgba(19, 115, 222, 0.34), transparent 0 18%, rgba(19, 115, 222, 0) 38%),
    radial-gradient(circle at 22% 92%, rgba(20, 93, 188, 0.23), transparent 0 19%, rgba(20, 93, 188, 0) 44%),
    linear-gradient(132deg, #020916 0%, #061a38 48%, #071329 100%);
  color: #fff;
}
.hero-video-fallback { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.hero-video-fallback::before,
.hero-video-fallback::after {
  content: "";
  position: absolute;
  width: min(68vw, 950px);
  aspect-ratio: 1;
  border: 1px solid rgba(91, 176, 255, 0.22);
  border-radius: 50%;
  right: -17vw;
  top: 50%;
  transform: translateY(-50%) rotate(-28deg);
}
.hero-video-fallback::after { width: min(48vw, 680px); right: -7vw; border-color: rgba(122, 199, 255, 0.30); }
.hero-orbit {
  position: absolute;
  right: 10%; top: 42%;
  width: min(46vw, 650px); height: min(15vw, 205px);
  border: 2px solid rgba(79, 166, 255, 0.52);
  border-left-color: transparent;
  border-radius: 50%;
  transform: rotate(-29deg);
  filter: drop-shadow(0 0 12px rgba(59, 157, 255, 0.26));
}
.hero-orbit-two { width: min(38vw, 530px); right: 3%; top: 54%; border-color: rgba(80, 206, 245, 0.50); border-right-color: transparent; transform: rotate(23deg); }
.hero-data-node {
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: #91d7ff;
  box-shadow: 0 0 0 5px rgba(89, 183, 255, 0.10), 0 0 24px rgba(77, 173, 255, 0.85);
}
.hero-data-node-one { right: 27%; top: 36%; }
.hero-data-node-two { right: 16%; top: 58%; width: 7px; height: 7px; }
.hero-data-node-three { right: 42%; top: 61%; width: 6px; height: 6px; }
.hero-video{background:radial-gradient(circle at 78% 42%,rgba(19,115,222,.34) 0%,rgba(19,115,222,0) 38%),radial-gradient(circle at 22% 92%,rgba(20,93,188,.23) 0%,rgba(20,93,188,0) 44%),linear-gradient(132deg,#020916 0%,#061a38 48%,#071329 100%) !important;}.hero-video{background-color:#061a38!important;background-image:linear-gradient(to bottom,#061a38,#020916)!important;}