/* ===== 秉言科技 GEO 二级页共享样式 ===== */
:root{
  --bg:#05070c;
  --glass:rgba(19,27,45,.5);
  --glass-2:rgba(23,33,53,.55);
  --line:rgba(255,255,255,.09);
  --text:#e8edf6;
  --muted:#94a3b8;
  --cip:#2F6BFF;
  --cip2:#6E56CF;
  --geo:#38BDF8;
  --geo2:#14b8a6;
  --green:#34d399;
  --radius:18px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:80px;}
body{
  background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
#particles{position:fixed;inset:0;z-index:0;pointer-events:none;}
.page{position:relative;z-index:1;}
.wrap{max-width:1200px;margin:0 auto;padding:0 40px;}
section{padding:80px 0;position:relative;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.18em;text-transform:uppercase;margin-bottom:16px;font-weight:600;
}
.eyebrow::before{width:26px;height:2px;content:"";background:currentColor;border-radius:2px;}
.eyebrow.geo{color:var(--geo);}
h2{font-size:32px;font-weight:700;letter-spacing:.01em;margin-bottom:14px;line-height:1.3;}
h3{font-size:22px;font-weight:800;line-height:1.35;}
.sec-desc{color:var(--muted);font-size:16px;max-width:760px;margin-bottom:40px;}
.grad-geo{background:linear-gradient(90deg,var(--geo),var(--geo2));-webkit-background-clip:text;background-clip:text;color:transparent;}
.text-glow-geo{text-shadow:0 0 24px rgba(56,189,248,.4);}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .75s ease,transform .75s ease;}
.reveal.visible{opacity:1;transform:none;}

/* ===== Nav ===== */
nav{
  position:sticky;top:0;z-index:100;
  background:rgba(5,7,12,.72);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px;}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;}
.logo .logo-mark{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(47,107,255,.2),rgba(56,189,248,.14));
  border:1px solid rgba(56,189,248,.35);
  box-shadow:0 0 18px rgba(56,189,248,.25), inset 0 0 12px rgba(56,189,248,.12);
}
.logo .logo-mark img{width:26px;height:26px;display:block;}
.logo b{font-weight:800;font-size:17px;color:var(--text);display:block;line-height:1.15;}
.logo small{display:block;font-size:9.5px;color:var(--muted);letter-spacing:.16em;line-height:1;}
.nav-links{display:flex;gap:22px;font-size:14px;align-items:center;}
.nav-links a{color:var(--muted);text-decoration:none;transition:color .2s;}
.nav-links a:hover{color:var(--text);}
.nav-links a.active{color:#fff;font-weight:600;text-shadow:0 0 14px rgba(56,189,248,.6);}
.nav-links a.nav-cta{
  color:#06202a;padding:9px 20px;border-radius:9px;font-weight:700;
  background:linear-gradient(90deg,var(--geo),var(--geo2));
  box-shadow:0 0 18px rgba(56,189,248,.4);
  transition:box-shadow .2s,transform .15s;
}
.nav-links a.nav-cta:hover{box-shadow:0 0 30px rgba(56,189,248,.65);transform:translateY(-1px);}

/* ===== 子页 Hero ===== */
.sub-hero{padding:76px 0 56px;position:relative;overflow:hidden;}
.sub-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(148,163,184,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(148,163,184,.05) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(to bottom,black,transparent 82%);
  -webkit-mask-image:linear-gradient(to bottom,black,transparent 82%);
}
.orb{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;opacity:.55;}
.orb-1{width:460px;height:460px;top:-140px;right:-100px;background:rgba(56,189,248,.18);}
.orb-2{width:400px;height:400px;top:-80px;left:-120px;background:rgba(20,184,166,.14);}
.sub-hero .wrap{position:relative;}
.crumb{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);
  margin-bottom:20px;
}
.crumb a{color:#9fd6f2;text-decoration:none;transition:color .2s;}
.crumb a:hover{color:#fff;}
.crumb .sep{color:#475569;}
.crumb b{color:var(--text);font-weight:600;}
.sub-hero h1{font-size:40px;font-weight:800;line-height:1.25;letter-spacing:.01em;}
.sub-hero .hero-sub{margin-top:16px;font-size:16.5px;color:var(--muted);max-width:720px;}
.sub-hero .hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  border:1px solid rgba(56,189,248,.35);border-radius:999px;
  padding:6px 16px;font-size:12.5px;color:#bfe3f7;margin-bottom:18px;
  background:rgba(56,189,248,.07);
  box-shadow:0 0 20px rgba(56,189,248,.14), inset 0 0 12px rgba(56,189,248,.05);
}
.sub-hero .hero-cta{margin-top:26px;display:flex;gap:16px;flex-wrap:wrap;}

/* ===== 按钮 ===== */
.btn{
  display:inline-block;padding:13px 30px;border-radius:11px;font-size:15px;font-weight:600;
  text-decoration:none;transition:transform .18s,box-shadow .25s;
}
.btn-geo{
  background:linear-gradient(90deg,var(--geo),var(--geo2));color:#06202a;font-weight:700;
  box-shadow:0 0 22px rgba(56,189,248,.35);
}
.btn-geo:hover{transform:translateY(-2px);box-shadow:0 0 42px rgba(56,189,248,.65);}
.btn-ghost{border:1px solid var(--line);color:var(--text);background:rgba(255,255,255,.03);}
.btn-ghost:hover{border-color:rgba(255,255,255,.28);box-shadow:0 0 20px rgba(255,255,255,.06);}

/* ===== 通用卡片 ===== */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.card{
  padding:28px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--glass);backdrop-filter:blur(14px);
  transition:border-color .22s,transform .22s,box-shadow .22s;
}
.card:hover{border-color:rgba(56,189,248,.4);transform:translateY(-3px);box-shadow:0 14px 34px rgba(0,0,0,.35),0 0 26px rgba(56,189,248,.12);}
.card.hot{
  border-color:rgba(56,189,248,.4);
  background:linear-gradient(180deg,rgba(56,189,248,.09),rgba(13,19,32,.6));
  box-shadow:0 18px 44px rgba(0,0,0,.4),0 0 34px rgba(56,189,248,.14);
}
.card .tag{
  display:inline-flex;padding:5px 12px;border-radius:99px;font-size:11.5px;font-weight:800;
  letter-spacing:.06em;margin-bottom:14px;
}
.card .tag.t-geo{color:var(--geo);background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.35);}
.card .tag.t-red{color:#f87171;background:rgba(248,113,113,.1);border:1px solid rgba(248,113,113,.35);}
.card .tag.t-green{color:var(--green);background:rgba(52,211,153,.1);border:1px solid rgba(52,211,153,.35);}
.card h4{font-size:17.5px;font-weight:800;margin-bottom:8px;}
.card p{margin:0;color:var(--muted);font-size:13.5px;}

/* ===== 表格 ===== */
.tbl-wrap{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;backdrop-filter:blur(14px);}
table{width:100%;border-collapse:collapse;font-size:14px;background:rgba(13,19,32,.5);}
thead th{
  text-align:left;padding:15px 20px;font-size:12.5px;letter-spacing:.06em;font-weight:800;
  color:var(--geo);background:rgba(56,189,248,.07);border-bottom:1px solid var(--line);
  white-space:nowrap;
}
tbody td{padding:16px 20px;color:var(--muted);border-bottom:1px solid var(--line);vertical-align:top;}
tbody tr:last-child td{border-bottom:0;}
tbody tr:hover td{background:rgba(23,33,53,.5);}
tbody td b, tbody td strong{color:var(--text);font-weight:700;}
td .cell-tag{color:var(--geo);font-weight:700;}

/* ===== 折叠问答 ===== */
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--glass);backdrop-filter:blur(14px);overflow:hidden;
  transition:border-color .25s;
}
.faq-item[open]{border-color:rgba(56,189,248,.45);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:22px 26px;transition:background .25s;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:rgba(23,33,53,.5);}
.fq-q{
  flex:none;display:grid;width:40px;height:40px;place-items:center;
  border:1px solid rgba(56,189,248,.4);border-radius:11px;
  background:rgba(56,189,248,.08);color:var(--geo);font-size:15px;font-weight:800;
}
.fq-title{flex:1;font-size:17px;font-weight:700;line-height:1.4;}
.fq-arrow{flex:none;color:var(--geo);font-size:18px;transition:transform .25s;}
.faq-item[open] .fq-arrow{transform:rotate(90deg);}
.fq-body{padding:0 26px 24px 82px;}
.fq-body p{color:var(--muted);font-size:14.5px;margin-bottom:12px;}
.fq-body p:last-child{margin-bottom:0;}
.fq-body p b{color:var(--text);}
.fq-body .fq-key{
  margin-top:12px;padding:12px 16px;border-radius:10px;
  background:rgba(56,189,248,.06);border-left:3px solid var(--geo);
  color:#b7d5e8;font-size:13.5px;
}
.fq-body .fq-key b{color:var(--geo);}

/* ===== 提示框 ===== */
.callout{
  padding:22px 26px;border-radius:var(--radius);
  border:1px solid rgba(56,189,248,.3);
  background:linear-gradient(180deg,rgba(56,189,248,.08),rgba(13,19,32,.6));
  color:#b7d5e8;font-size:14.5px;backdrop-filter:blur(14px);
}
.callout b{color:#fff;}

/* ===== 分隔标题 ===== */
.sec-head{margin-bottom:34px;}

/* ===== Footer ===== */
footer{border-top:1px solid var(--line);padding:36px 0;background:rgba(5,7,12,.7);backdrop-filter:blur(10px);}
.foot-grid{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:flex-start;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.foot-brand img{width:26px;height:26px;}
.foot-brand b{font-size:15px;}
footer p{font-size:12.5px;color:var(--muted);line-height:1.9;}
footer p a{color:#c3d0e2;text-decoration:none;border-bottom:1px dotted rgba(148,163,184,.4);transition:color .2s;}
footer p a:hover{color:#fff;}
.foot-icp{margin-top:20px;padding-top:18px;border-top:1px solid rgba(148,163,184,.12);text-align:center;}
.foot-icp p{font-size:12px;color:var(--muted);}
.foot-links{display:flex;gap:22px;font-size:13px;flex-wrap:wrap;}
.foot-links a{color:var(--muted);text-decoration:none;}
.foot-links a:hover{color:var(--text);}

/* ===== 联系弹层 ===== */
.modal-overlay{
  position:fixed;inset:0;z-index:1000;
  background:rgba(5,7,12,.8);backdrop-filter:blur(10px);
  display:none;align-items:center;justify-content:center;padding:24px;
}
.modal-overlay.open{display:flex;animation:modal-fade .25s ease;}
@keyframes modal-fade{from{opacity:0}to{opacity:1}}
.modal-card{
  background:linear-gradient(180deg,rgba(23,33,53,.96),rgba(11,16,27,.96));
  border:1px solid rgba(56,189,248,.3);border-radius:20px;
  padding:38px 34px 28px;max-width:640px;width:100%;position:relative;
  box-shadow:0 30px 80px rgba(0,0,0,.6),0 0 60px rgba(56,189,248,.15);
  animation:modal-pop .3s cubic-bezier(.2,1,.3,1);
  max-height:90vh;overflow-y:auto;
}
@keyframes modal-pop{from{transform:scale(.94) translateY(12px);opacity:0}to{transform:none;opacity:1}}
.modal-close{
  position:absolute;top:14px;right:14px;width:34px;height:34px;
  border-radius:9px;border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);color:#94a3b8;font-size:18px;
  cursor:pointer;transition:all .2s;line-height:1;
}
.modal-close:hover{color:#fff;border-color:rgba(255,255,255,.35);}
.modal-card h3{font-size:23px;font-weight:800;text-align:center;margin-bottom:6px;}
.modal-sub{color:#94a3b8;font-size:13.5px;text-align:center;margin-bottom:26px;}
.qr-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.qr-item{
  text-align:center;padding:18px 12px 16px;border-radius:14px;
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.09);
  transition:border-color .25s,transform .25s;
}
.qr-item:hover{border-color:rgba(56,189,248,.4);transform:translateY(-3px);}
.qr-item img{
  width:126px;height:126px;border-radius:10px;object-fit:cover;
  display:block;margin:0 auto 12px;background:#fff;
}
.qr-item .qr-name{font-size:14.5px;font-weight:700;margin-bottom:4px;}
.qr-item .qr-desc{font-size:12px;color:#94a3b8;line-height:1.5;}
.qr-item .qr-link{
  display:inline-block;margin-top:8px;font-size:12px;color:#7dd8f5;
  text-decoration:none;border-bottom:1px dotted rgba(56,189,248,.5);
}
.qr-item .qr-link:hover{color:#a5e4f9;}
.modal-foot{margin-top:20px;text-align:center;font-size:12.5px;color:#64748b;}

/* ===== 响应式 ===== */
@media(max-width:980px){
  .wrap{padding:0 22px;}
  section{padding:60px 0;}
  .grid-3{grid-template-columns:1fr 1fr;}
  .nav-links a:not(.nav-cta){display:none;}
  .sub-hero h1{font-size:30px;}
}
@media(max-width:680px){
  .grid-2,.grid-3{grid-template-columns:1fr;}
  .fq-body{padding:0 20px 20px;}
  .qr-grid{grid-template-columns:1fr;}
  .qr-item img{width:140px;height:140px;}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
}