/* 百家乐官网样式 baijiale-ai.com.cn */
:root{
  --bg:#f7f5f0;
  --surface:#ffffff;
  --surface-alt:#f1efe9;
  --ink:#2b2e33;
  --ink-soft:#5b6168;
  --ink-faint:#8a8f96;
  --line:#e3ddd2;
  --mist:#4a6b8a;
  --mist-dark:#33506b;
  --cyan:#1f8a99;
  --cyan-soft:#e4f1f2;
  --green:#5f8f6c;
  --green-soft:#e7f0e6;
  --orange:#c17a3d;
  --orange-soft:#f6e9dc;
  --radius:14px;
  --radius-sm:8px;
  --shadow:0 2px 18px rgba(43,46,51,0.06);
  --maxw:1160px;
  font-size:16px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--mist-dark);text-decoration:none;}
a:hover{color:var(--cyan);}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
h1,h2,h3,h4{line-height:1.35;font-weight:700;color:var(--ink);}
h1{font-size:2.15rem;margin:0 0 14px;}
h2{font-size:1.55rem;margin:48px 0 16px;}
h3{font-size:1.2rem;margin:28px 0 10px;}
p{margin:0 0 16px;color:var(--ink-soft);}
strong{color:var(--ink);}
ul,ol{color:var(--ink-soft);padding-left:1.3em;}
li{margin-bottom:8px;}
.section{padding:56px 0;}
.section-alt{background:var(--surface-alt);}
.tag{
  display:inline-block;
  font-size:0.78rem;
  color:var(--mist-dark);
  background:var(--cyan-soft);
  border-radius:20px;
  padding:4px 14px;
  margin-bottom:14px;
  letter-spacing:0.02em;
}
.tag.orange{color:var(--orange);background:var(--orange-soft);}
.tag.green{color:var(--green);background:var(--green-soft);}

/* header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(247,245,240,0.94);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);font-size:1.15rem;}
.brand img{width:34px;height:34px;}
.main-nav{display:flex;gap:18px;}
.main-nav a{color:var(--ink-soft);font-size:0.88rem;font-weight:500;white-space:nowrap;}
.main-nav a.active{color:var(--cyan);}
.nav-toggle{
  display:none;
  width:40px;height:40px;border:1px solid var(--line);border-radius:8px;
  background:var(--surface);cursor:pointer;
  position:relative;
}
.nav-toggle span{
  position:absolute;left:9px;right:9px;height:2px;background:var(--ink);
  transition:transform .2s,opacity .2s;
}
.nav-toggle span:nth-child(1){top:14px;}
.nav-toggle span:nth-child(2){top:19px;}
.nav-toggle span:nth-child(3){top:24px;}
.nav-toggle.open span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

/* hero */
.hero{
  padding:64px 0 48px;
  background:linear-gradient(180deg,#f2efe7 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:40px;align-items:center;}
.hero h1{font-size:2.3rem;}
.hero-lead{font-size:1.12rem;color:var(--ink);margin-bottom:10px;}
.hero-sub{color:var(--ink-soft);font-size:0.98rem;}
.hero-actions{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap;}
.btn{
  display:inline-block;padding:12px 26px;border-radius:10px;
  font-weight:600;font-size:0.95rem;border:1px solid transparent;
}
.btn-primary{background:var(--mist-dark);color:#fff;}
.btn-primary:hover{background:var(--cyan);color:#fff;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);}
.hero-art{background:var(--surface);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);}
.hero-art figcaption{font-size:0.78rem;color:var(--ink-faint);text-align:center;margin-top:8px;}

/* breadcrumb */
.breadcrumb{font-size:0.82rem;color:var(--ink-faint);padding:14px 0 0;}
.breadcrumb a{color:var(--ink-faint);}
.breadcrumb a:hover{color:var(--cyan);}

/* diagram card */
.diagram-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow);
}
.diagram-card figcaption{font-size:0.8rem;color:var(--ink-faint);margin-top:10px;text-align:center;}
.diagram-scroll{overflow-x:auto;}

/* article */
.article{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 34px;margin-bottom:28px;box-shadow:var(--shadow);
}
.article .tag{margin-bottom:10px;}
.article h2{margin-top:0;font-size:1.35rem;}
.article h3{font-size:1.05rem;}
.article-meta{font-size:0.8rem;color:var(--ink-faint);margin-bottom:16px;}
.article-figure{margin:20px 0;}
.article-link-row{
  margin-top:18px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:0.92rem;
}
.article-link-row a{font-weight:600;}

/* card grids */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px;}
.grid-4{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:18px;}
.mini-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:18px 20px;
}
.mini-card h3{margin-top:0;font-size:1rem;}
.mini-card p{font-size:0.92rem;margin-bottom:0;}

/* summary list (二级文章摘要回流) */
.summary-list{display:flex;flex-direction:column;gap:16px;}
.summary-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:18px 22px;
}
.summary-item h3{margin:0 0 8px;font-size:1.02rem;}
.summary-item h3 a{color:var(--ink);}
.summary-item h3 a:hover{color:var(--cyan);}
.summary-item p{margin:0;font-size:0.93rem;}

/* faq */
.faq-list{display:flex;flex-direction:column;gap:10px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  overflow:hidden;
}
.faq-q{
  width:100%;text-align:left;background:none;border:none;cursor:pointer;
  padding:16px 44px 16px 20px;font-size:0.98rem;font-weight:600;color:var(--ink);
  position:relative;font-family:inherit;
}
.faq-q::after{
  content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  color:var(--cyan);font-size:1.2rem;font-weight:400;
}
.faq-item.open .faq-q::after{content:"–";}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .25s ease;
  padding:0 20px;font-size:0.92rem;color:var(--ink-soft);
}
.faq-item.open .faq-a{padding-bottom:16px;}
.faq-a p{margin:0;}

/* table-like key/value rows for simulated data */
.data-row{
  display:flex;justify-content:space-between;gap:10px;
  padding:9px 0;border-bottom:1px dashed var(--line);font-size:0.9rem;
}
.data-row:last-child{border-bottom:none;}
.data-row .k{color:var(--ink-soft);}
.data-row .v{color:var(--ink);font-weight:600;}
.data-note{font-size:0.78rem;color:var(--ink-faint);margin-top:6px;}

/* interactive widgets */
.widget{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 24px;box-shadow:var(--shadow);
}
.widget-tabs{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap;}
.widget-tab{
  padding:8px 16px;border-radius:20px;border:1px solid var(--line);
  background:var(--surface-alt);font-size:0.86rem;cursor:pointer;color:var(--ink-soft);
}
.widget-tab.active{background:var(--mist-dark);color:#fff;border-color:var(--mist-dark);}
.widget-panel{display:none;}
.widget-panel.active{display:block;}
.pill-row{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0;}
.pill{
  font-size:0.82rem;padding:5px 12px;border-radius:20px;
  background:var(--surface-alt);color:var(--ink-soft);border:1px solid var(--line);
}
.pill.status-ok{background:var(--green-soft);color:var(--green);border-color:transparent;}
.pill.status-warn{background:var(--orange-soft);color:var(--orange);border-color:transparent;}
.pill.status-info{background:var(--cyan-soft);color:var(--mist-dark);border-color:transparent;}

/* App phone mock */
.phone-mock{
  width:280px;background:var(--ink);border-radius:32px;padding:14px;
  box-shadow:var(--shadow);margin:0 auto;
}
.phone-screen{
  background:var(--surface);border-radius:20px;padding:18px 16px;min-height:420px;
}
.phone-status-item{
  display:flex;justify-content:space-between;align-items:center;
  padding:10px 0;border-bottom:1px solid var(--line);font-size:0.85rem;
}
.phone-status-item:last-child{border-bottom:none;}
.phone-status-item .label{color:var(--ink-soft);}
.phone-status-item .value{font-weight:700;}
.value.ok{color:var(--green);}
.value.info{color:var(--mist-dark);}
.value.warn{color:var(--orange);}

/* footer */
.site-footer{background:var(--ink);color:#c9cdd2;padding:46px 0 24px;margin-top:40px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;}
.footer-grid h4{color:#fff;font-size:0.95rem;margin:0 0 12px;}
.footer-grid a{color:#c9cdd2;font-size:0.88rem;display:block;margin-bottom:8px;}
.footer-grid a:hover{color:#fff;}
.footer-brand p{color:#a7acb2;font-size:0.86rem;}
.footer-bottom{
  border-top:1px solid #3c4046;margin-top:32px;padding-top:18px;
  font-size:0.8rem;color:#9aa0a6;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
}
.back-top{
  position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:50%;
  background:var(--mist-dark);color:#fff;display:flex;align-items:center;justify-content:center;
  cursor:pointer;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:opacity .2s;
  border:none;z-index:90;font-size:1.1rem;
}
.back-top.show{opacity:1;pointer-events:auto;}

/* section heading helper */
.section-head{max-width:760px;margin-bottom:28px;}
.section-head h2{margin-top:0;}
.section-head p{font-size:0.98rem;}

/* download page cards */
.channel-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;text-align:center;
}
.channel-card img{width:56px;height:56px;margin:0 auto 12px;}
.channel-card h3{margin-top:0;}
.channel-status{
  display:inline-block;margin-top:10px;font-size:0.82rem;color:var(--orange);
  background:var(--orange-soft);padding:4px 12px;border-radius:20px;
}

@media (max-width:1180px){
  .main-nav{
    position:absolute;top:68px;left:0;right:0;background:var(--surface);
    flex-direction:column;padding:12px 24px;border-bottom:1px solid var(--line);
    display:none;gap:4px;
  }
  .main-nav.open{display:flex;}
  .main-nav a{padding:10px 0;border-bottom:1px solid var(--line);font-size:0.95rem;}
  .main-nav a:last-child{border-bottom:none;}
  .nav-toggle{display:block;}
}
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:720px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .hero h1{font-size:1.7rem;}
  h2{font-size:1.3rem;}
  .article{padding:22px 20px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:480px){
  .footer-grid{grid-template-columns:1fr;}
  .phone-mock{width:100%;}
}