:root{--c-primary:#0b1d3a;--font:'Microsoft YaHei','PingFang SC',sans-serif;}
/* ============ 华因基因检测 基因双螺旋+数据风 ============ */
:root {
  --deep:#0b1d3a;
  --deep-2:#0e2447;
  --neon:#39ff14;
  --blue:#2a7bd5;
  --white:#f0f5ff;
  --line:#1d3a63;
  --shadow:0 18px 40px rgba(0,0,0,.45);
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { font-family:"Microsoft YaHei","PingFang SC",monospace; color:#c6d4ea; background:var(--deep); overflow-x:hidden; font-size:17px; }
body::before { content:""; position:fixed; inset:0; pointer-events:none; background:repeating-linear-gradient(0deg,rgba(57,255,20,.025) 0 2px,transparent 2px 42px); z-index:0; }
a { text-decoration:none; color:inherit; }
ul { list-style:none; }
img { max-width:100%; display:block; }
.container { max-width:1200px; margin:0 auto; padding:0 24px; position:relative; z-index:1; }

/* ---------- 导航 ---------- */
.site-header { position:fixed; top:0; left:0; right:0; z-index:999; background:rgba(11,29,58,.92); backdrop-filter:blur(10px); border-bottom:1px solid rgba(57,255,20,.25); box-shadow:0 0 30px rgba(57,255,20,.08); }
.nav-wrap { display:flex; align-items:center; justify-content:space-between; height:78px; }
.logo { display:flex; align-items:center; gap:12px; }
.logo-chain { width:46px; height:46px; border:2px solid var(--neon); border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:28px; color:var(--neon); text-shadow:0 0 12px rgba(57,255,20,.8); box-shadow:0 0 16px rgba(57,255,20,.35); }
.logo-text { font-weight:800; font-size:22px; color:#fff; display:flex; flex-direction:column; line-height:1.15; }
.logo-text span { font-size:10px; font-weight:500; color:var(--neon); letter-spacing:2px; }
.main-nav { display:flex; gap:6px; }
.main-nav a { padding:11px 17px; font-size:16px; font-weight:600; color:#c6d4ea; transition:.3s; }
.main-nav a:hover { color:var(--neon); text-shadow:0 0 10px rgba(57,255,20,.6); }
.main-nav a.active { color:var(--deep); background:var(--neon); box-shadow:0 0 18px rgba(57,255,20,.5); border-radius:6px; }
.nav-toggle { display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:8px; }
.nav-toggle span { width:26px; height:3px; background:var(--neon); box-shadow:0 0 8px rgba(57,255,20,.6); border-radius:2px; transition:.3s; }

/* ---------- 数据网格背景 ---------- */
.data-grid { position:absolute; inset:0; pointer-events:none; background-image:linear-gradient(rgba(42,123,213,.14) 1px,transparent 1px), linear-gradient(90deg,rgba(42,123,213,.14) 1px,transparent 1px); background-size:64px 64px; mask-image:radial-gradient(circle at 50% 40%,#000 0%,transparent 80%); -webkit-mask-image:radial-gradient(circle at 50% 40%,#000 0%,transparent 80%); }

/* ---------- 漂浮数据 ---------- */
.float-data { position:absolute; inset:0; pointer-events:none; overflow:hidden; }
.fd { position:absolute; font-size:14px; color:rgba(57,255,20,.7); text-shadow:0 0 8px rgba(57,255,20,.5); animation:floatUp 12s linear infinite; opacity:0; }
.fd.d1 { left:8%; top:20%; animation-delay:0s; }
.fd.d2 { left:14%; top:55%; animation-delay:3s; }
.fd.d3 { right:10%; top:25%; animation-delay:6s; }
.fd.d4 { right:16%; top:60%; animation-delay:9s; }
.fd.d5 { left:50%; top:16%; animation-delay:1.5s; }
.fd.d6 { right:5%; top:78%; animation-delay:4.5s; }
@keyframes floatUp { 0%{ transform:translateY(0); opacity:0;} 10%{opacity:.9;} 90%{opacity:.9;} 100%{ transform:translateY(-120px); opacity:0;} }

/* ---------- Hero ---------- */
.hero { position:relative; padding:190px 0 120px; background:radial-gradient(ellipse at 70% 40%,#12325f 0%,var(--deep) 55%); overflow:hidden; }
.hero-dna { position:absolute; right:4%; top:50%; transform:translateY(-50%); width:300px; height:520px; display:flex; align-items:center; justify-content:center; perspective:900px; opacity:.95; }
.dna-beam { position:absolute; width:260px; height:260px; border-radius:50%; background:radial-gradient(circle,rgba(57,255,20,.18),rgba(42,123,213,.14),transparent 70%); filter:blur(14px); animation:beamPulse 4s ease-in-out infinite; }
@keyframes beamPulse { 0%,100%{ opacity:.7; transform:scale(1);} 50%{ opacity:1; transform:scale(1.15);} }
.dna-svg { width:240px; height:520px; transform-style:preserve-3d; animation:dnaSpin 16s linear infinite; filter:drop-shadow(0 0 24px rgba(57,255,20,.35)); }
@keyframes dnaSpin { from{ transform:rotateY(0deg);} to{ transform:rotateY(360deg);} }
.hero-inner { position:relative; }
.hero-text { max-width:640px; }
.hero-tag { display:inline-block; padding:9px 22px; border:1px solid rgba(57,255,20,.6); color:var(--neon); font-size:15px; font-weight:700; margin-bottom:24px; text-shadow:0 0 10px rgba(57,255,20,.5); background:rgba(57,255,20,.06); border-radius:4px; letter-spacing:2px; }
.hero h1 { font-size:44px; line-height:1.4; color:#fff; font-weight:800; margin-bottom:22px; }
.hero h1 span { color:var(--neon); text-shadow:0 0 20px rgba(57,255,20,.6); }
.hero-text p { font-size:17px; line-height:2; margin-bottom:32px; max-width:540px; color:#b9c9e0; }
.hero-actions { display:flex; gap:16px; }
.btn { display:inline-block; padding:15px 34px; font-weight:700; font-size:16px; transition:.3s; border:1px solid transparent; cursor:pointer; border-radius:4px; letter-spacing:1px; }
.btn-primary { background:var(--neon); color:var(--deep); box-shadow:0 0 26px rgba(57,255,20,.5); font-weight:800; }
.btn-primary:hover { transform:translateY(-3px); box-shadow:0 0 40px rgba(57,255,20,.8); }
.btn-outline { background:transparent; color:var(--neon); border-color:var(--neon); }
.btn-outline:hover { background:rgba(57,255,20,.12); }
.btn-light { background:#fff; color:var(--deep); box-shadow:0 10px 24px rgba(0,0,0,.3); }
.btn-outline-light { background:transparent; border:1px solid rgba(240,245,255,.7); color:#fff; }
.btn-block { display:block; width:100%; text-align:center; }
.hero-meta { display:flex; gap:34px; margin-top:36px; flex-wrap:wrap; font-size:15px; color:#9db2cf; }
.hero-meta b { display:block; font-size:24px; color:var(--neon); font-weight:800; text-shadow:0 0 12px rgba(57,255,20,.5); }
.hero-meta span { line-height:1.4; }

/* ---------- 数据分隔线 ---------- */
.data-line { height:4px; position:relative; overflow:hidden; }
.data-line i { position:absolute; inset:0; background:repeating-linear-gradient(90deg,var(--neon) 0 40px,transparent 40px 80px); opacity:.8; animation:lineMove 6s linear infinite; }
.data-line.rev i { animation-direction:reverse; background:repeating-linear-gradient(90deg,var(--blue) 0 40px,transparent 40px 80px); }
@keyframes lineMove { from{ transform:translateX(0);} to{ transform:translateX(80px);} }

/* ---------- 通用 Section ---------- */
.section { padding:96px 0; }
.section-head { text-align:center; max-width:680px; margin:0 auto 56px; }
.kicker { display:inline-block; font-size:14px; font-weight:700; letter-spacing:4px; color:var(--neon); margin-bottom:14px; text-shadow:0 0 10px rgba(57,255,20,.5); }
.section-head h2 { font-size:40px; font-weight:800; color:#fff; margin-bottom:16px; line-height:1.35; }
.section-head h2 span { color:var(--neon); text-shadow:0 0 18px rgba(57,255,20,.5); }
.section-head p { font-size:16px; color:#9db2cf; opacity:.95; }

/* ---------- 基因科技 ---------- */
.tech { background:var(--deep); }
.tech-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:26px; }
.tech-card { background:linear-gradient(180deg,var(--deep-2),#0a1832); border:1px solid var(--line); border-top:2px solid var(--neon); border-radius:8px; padding:36px 26px; transition:.35s; position:relative; overflow:hidden; }
.tech-card::after { content:""; position:absolute; top:0; right:0; width:80px; height:80px; border-right:2px solid rgba(57,255,20,.25); border-top:2px solid rgba(57,255,20,.25); }
.tech-card:hover { transform:translateY(-8px); box-shadow:0 0 30px rgba(57,255,20,.15); }
.tc-icon { display:block; font-size:40px; color:var(--neon); text-shadow:0 0 16px rgba(57,255,20,.7); margin-bottom:18px; }
.tech-card h3 { font-size:19px; color:#fff; margin-bottom:12px; }
.tech-card p { font-size:14px; line-height:1.9; color:#9db2cf; margin-bottom:16px; }
.tc-code { display:inline-block; font-size:12px; color:var(--neon); border:1px dashed rgba(57,255,20,.5); padding:5px 12px; border-radius:4px; opacity:.9; }

/* ---------- 检测项目 ---------- */
.tests { background:linear-gradient(180deg,var(--deep),#0d2144); }
.tests-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:40px; }
.test-card { background:linear-gradient(180deg,var(--deep-2),#0a1832); border:1px solid var(--line); border-radius:8px; padding:30px 26px 32px; transition:.35s; position:relative; overflow:hidden; }
.test-card:hover { transform:translateY(-8px); border-color:rgba(57,255,20,.5); box-shadow:0 0 30px rgba(57,255,20,.14); }
.bc { height:18px; margin-bottom:22px; background:repeating-linear-gradient(90deg,rgba(240,245,255,.9) 0 3px,rgba(240,245,255,.25) 3px 5px,transparent 5px 9px,rgba(240,245,255,.6) 9px 11px,rgba(240,245,255,.9) 11px 15px,transparent 15px 20px,rgba(240,245,255,.4) 20px 22px); border-radius:2px; }
.test-seq { display:block; font-size:14px; letter-spacing:2px; color:var(--neon); margin-bottom:16px; opacity:.85; }
.test-card h3 { font-size:20px; color:#fff; margin-bottom:12px; }
.test-card p { font-size:14px; line-height:1.9; color:#9db2cf; margin-bottom:16px; }
.test-tag { display:inline-block; font-size:12px; font-weight:700; color:var(--deep); background:var(--neon); padding:6px 14px; border-radius:4px; box-shadow:0 0 14px rgba(57,255,20,.35); }
.center-btn { text-align:center; margin-top:46px; }

/* ---------- 技术流程 ---------- */
.flow { background:var(--deep); }
.flow-wrap { display:flex; align-items:stretch; justify-content:center; gap:12px; flex-wrap:wrap; max-width:1000px; margin:0 auto; }
.flow-step { flex:1; min-width:170px; background:linear-gradient(180deg,var(--deep-2),#0a1832); border:1px solid var(--line); border-radius:8px; padding:30px 20px; text-align:center; transition:.35s; }
.flow-step:hover { transform:translateY(-6px); border-color:var(--neon); }
.fl-num { display:inline-flex; width:48px; height:48px; align-items:center; justify-content:center; border:2px solid var(--neon); color:var(--neon); font-weight:800; border-radius:50%; margin-bottom:14px; box-shadow:0 0 16px rgba(57,255,20,.35); }
.flow-step h3 { font-size:17px; color:#fff; margin-bottom:10px; }
.flow-step p { font-size:13px; line-height:1.8; color:#9db2cf; }
.flow-link { align-self:center; color:var(--neon); font-size:18px; text-shadow:0 0 10px rgba(57,255,20,.6); }
.wave { margin-top:56px; }
.wave svg { width:100%; height:90px; }
.wave-line { stroke-dasharray:600; stroke-dashoffset:600; animation:dash 6s linear infinite; }
.wave-line.w2 { animation-delay:1.5s; }
@keyframes dash { to{ stroke-dashoffset:0;} }

/* ---------- 资讯报告 ---------- */
.reports { background:linear-gradient(180deg,#0d2144,var(--deep)); }
.report-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.report-card { background:linear-gradient(180deg,var(--deep-2),#0a1832); border:1px solid var(--line); border-radius:8px; overflow:hidden; transition:.35s; }
.report-card:hover { transform:translateY(-6px); border-color:rgba(57,255,20,.5); }
.report-card img { width:100%; height:200px; object-fit:cover; opacity:.9; }
.report-body { padding:26px; }
.report-body time { font-size:13px; color:var(--neon); font-weight:700; }
.report-body h3 { font-size:19px; color:#fff; margin:12px 0; line-height:1.6; }
.report-body p { font-size:14px; line-height:1.9; color:#9db2cf; }

/* ---------- CTA ---------- */
.cta-box { background:linear-gradient(135deg,#12325f,#0a1832 60%,#0e2f1a); border:1px solid rgba(57,255,20,.4); border-radius:10px; padding:64px; text-align:center; color:#fff; position:relative; overflow:hidden; box-shadow:0 0 50px rgba(57,255,20,.12); }
.cta-box::before { content:""; position:absolute; inset:0; background:repeating-linear-gradient(0deg,rgba(57,255,20,.04) 0 2px,transparent 2px 38px); }
.cta-code { display:block; font-size:13px; letter-spacing:4px; color:var(--neon); margin-bottom:20px; position:relative; }
.cta-box h2 { font-size:34px; font-weight:800; margin-bottom:16px; position:relative; }
.cta-box p { font-size:17px; color:#b9c9e0; margin-bottom:32px; position:relative; }
.cta-actions { display:flex; gap:16px; justify-content:center; position:relative; }

/* ---------- 页脚 ---------- */
.site-footer { background:#081228; border-top:1px solid var(--line); padding:60px 0 0; }
.footer-grid { display:grid; grid-template-columns:1.4fr 1fr 1.2fr; gap:40px; padding-bottom:36px; }
.footer-brand h3 { font-size:21px; color:#fff; margin-bottom:14px; }
.footer-brand p { font-size:16px; line-height:1.9; opacity:.8; }
.footer-links h4 { font-size:17px; color:#fff; margin-bottom:16px; }
.footer-links a { display:block; font-size:16px; padding:7px 0; opacity:.8; transition:.3s; }
.footer-links a:hover { color:var(--neon); padding-left:6px; }
.footer-links p { font-size:16px; padding:5px 0; opacity:.8; line-height:1.8; }
.footer-bottom { border-top:1px solid rgba(57,255,20,.14); padding:20px 0; text-align:center; font-size:13px; opacity:.7; }

/* ---------- 内页 ---------- */
.page-hero { position:relative; padding:180px 0 84px; text-align:center; background:radial-gradient(ellipse at 50% 0%,#12325f,var(--deep)); overflow:hidden; }
.page-hero .container { position:relative; }
.page-hero .kicker { color:var(--neon); }
.page-hero h1 { font-size:44px; color:#fff; font-weight:800; margin:8px 0 16px; }
.page-hero h1 span { color:var(--neon); text-shadow:0 0 20px rgba(57,255,20,.5); }
.page-hero p { font-size:17px; color:#9db2cf; }

/* about */
.about-grid { display:grid; grid-template-columns:1fr 1.1fr; gap:56px; align-items:center; }
.about-img { position:relative; }
.about-img img { width:100%; height:430px; object-fit:cover; border-radius:8px; border:2px solid var(--line); box-shadow:0 0 30px rgba(57,255,20,.15); }
.img-code { position:absolute; top:20px; right:20px; font-size:13px; letter-spacing:3px; color:var(--deep); background:var(--neon); padding:8px 16px; border-radius:4px; box-shadow:0 0 18px rgba(57,255,20,.5); font-weight:800; }
.about-text h2 { font-size:32px; color:#fff; margin-bottom:18px; }
.about-text h2 span { color:var(--neon); }
.about-text p { font-size:16px; line-height:2.1; margin-bottom:16px; color:#b9c9e0; }
.about-note { background:var(--deep-2); border:1px solid var(--line); border-left:4px solid var(--neon); border-radius:6px; padding:24px; margin-top:18px; }
.about-note p { margin:0; color:#d6e2f5; }

/* stats */
.stat-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:26px; }
.stat-cell { text-align:center; background:linear-gradient(180deg,var(--deep-2),#0a1832); border:1px solid var(--line); border-radius:8px; padding:36px 20px; transition:.35s; }
.stat-cell:hover { transform:translateY(-6px); border-color:var(--neon); }
.sc-line { display:block; width:40px; height:3px; background:var(--neon); margin:0 auto 18px; box-shadow:0 0 10px rgba(57,255,20,.6); }
.stat-cell b { display:block; font-size:34px; color:var(--neon); font-weight:800; text-shadow:0 0 16px rgba(57,255,20,.5); margin-bottom:8px; }
.stat-cell span { font-size:15px; color:#9db2cf; }

/* 质量体系 */
.qa-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.qa-item { background:linear-gradient(180deg,var(--deep-2),#0a1832); border:1px solid var(--line); border-radius:8px; padding:38px 28px; text-align:center; transition:.35s; }
.qa-item:hover { transform:translateY(-6px); border-color:var(--neon); }
.qa-num { display:inline-flex; width:56px; height:56px; align-items:center; justify-content:center; background:var(--neon); color:var(--deep); font-size:24px; font-weight:800; border-radius:50%; margin-bottom:16px; box-shadow:0 0 18px rgba(57,255,20,.4); }
.qa-item h3 { font-size:20px; color:#fff; margin-bottom:12px; }
.qa-item p { font-size:14px; line-height:1.9; color:#9db2cf; }

/* 对比表 */
.cmp-box { background:linear-gradient(180deg,var(--deep-2),#0a1832); border:1px solid var(--line); border-radius:8px; overflow:hidden; overflow-x:auto; }
.cmp-table { width:100%; border-collapse:collapse; min-width:640px; }
.cmp-table th,.cmp-table td { padding:16px 22px; text-align:left; font-size:15px; }
.cmp-table thead th { background:rgba(57,255,20,.1); color:var(--neon); font-weight:800; border-bottom:2px solid rgba(57,255,20,.3); }
.cmp-table tbody tr { border-bottom:1px solid var(--line); }
.cmp-table tbody tr:hover { background:rgba(42,123,213,.08); }
.cmp-table td { color:#b9c9e0; }
.cmp-table td:first-child { color:#fff; font-weight:700; }

/* contact */
.contact-wrap { display:grid; grid-template-columns:1fr 1.15fr; gap:50px; align-items:start; }
.ct-card { display:flex; gap:16px; padding:20px; background:linear-gradient(180deg,var(--deep-2),#0a1832); border:1px solid var(--line); border-radius:8px; margin-bottom:18px; transition:.3s; }
.ct-card:hover { border-color:rgba(57,255,20,.5); }
.ct-ic { width:52px; height:52px; border:2px solid var(--neon); border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:22px; color:var(--neon); box-shadow:0 0 14px rgba(57,255,20,.3); flex:0 0 52px; }
.ct-card h4 { font-size:18px; color:#fff; margin-bottom:6px; }
.ct-card p { font-size:15px; color:#9db2cf; line-height:1.7; }
.map-box { border-radius:8px; overflow:hidden; border:1px solid var(--line); }
.map-box img { width:100%; height:220px; object-fit:cover; }
.form-box { background:linear-gradient(180deg,var(--deep-2),#0a1832); border:1px solid var(--line); border-radius:10px; padding:40px; box-shadow:0 0 30px rgba(57,255,20,.06); }
.form-box h3 { font-size:24px; color:#fff; margin-bottom:26px; }
.form-grid { display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.form-field { margin-bottom:18px; }
.form-field label { display:block; font-size:15px; font-weight:700; color:#fff; margin-bottom:8px; }
.form-field input,.form-field select,.form-field textarea { width:100%; padding:14px 16px; border:1px solid var(--line); border-radius:6px; font-size:15px; font-family:inherit; background:#0a1832; color:#d6e2f5; transition:.3s; outline:none; }
.form-field select { color:#9db2cf; }
.form-field select option { background:#0a1832; color:#d6e2f5; }
.form-field textarea { min-height:120px; resize:vertical; }
.form-field input:focus,.form-field select:focus,.form-field textarea:focus { border-color:var(--neon); box-shadow:0 0 0 3px rgba(57,255,20,.12); }
.form-field.full { grid-column:span 2; }
.form-error { color:#ff5f5f; font-size:14px; margin-top:6px; display:none; }
.form-field.error input,.form-field.error textarea,.form-field.error select { border-color:#ff5f5f; }
.form-field.error .form-error { display:block; }
.form-success { display:none; text-align:center; padding:30px 0; color:var(--neon); font-size:18px; font-weight:700; }
.form-success .ok-icon { font-size:52px; display:block; margin-bottom:12px; text-shadow:0 0 20px rgba(57,255,20,.6); }

/* reveal */
.reveal { opacity:0; transform:translateY(34px); transition:opacity .8s ease, transform .8s ease; }
.reveal.visible { opacity:1; transform:none; }

/* ---------- 响应式 ---------- */
@media (max-width:992px){
  .hero-dna { display:none; }
  .hero-text { max-width:100%; }
  .hero { padding:170px 0 100px; }
  .tech-grid { grid-template-columns:repeat(2,1fr); }
  .tests-grid,.report-grid { grid-template-columns:repeat(2,1fr); }
  .stat-grid { grid-template-columns:repeat(2,1fr); }
  .contact-wrap,.about-grid { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .qa-grid { grid-template-columns:1fr; }
  .flow-wrap { flex-direction:column; align-items:stretch; }
  .flow-link { text-align:center; transform:rotate(90deg); }
}
@media (max-width:768px){
  .main-nav { position:fixed; top:78px; left:0; right:0; background:rgba(11,29,58,.98); flex-direction:column; padding:18px 24px 26px; gap:10px; box-shadow:0 16px 30px rgba(0,0,0,.5); transform:translateY(-140%); transition:.4s; }
  .main-nav.open { transform:none; }
  .nav-toggle { display:flex; }
  .hero { padding:140px 0 90px; }
  .hero h1 { font-size:32px; }
  .tech-grid,.tests-grid,.report-grid { grid-template-columns:1fr; }
  .form-grid { grid-template-columns:1fr; }
  .form-field.full { grid-column:span 1; }
  .footer-grid { grid-template-columns:1fr; }
  .cta-box { padding:48px 24px; }
  .section { padding:70px 0; }
  .section-head h2 { font-size:30px; }
  .hero-meta { gap:22px; }
}