/* 德扑 AI · 关键词站样式 */
:root{
  --bg:#06110d;
  --bg2:#0a1a14;
  --card:#0d2018;
  --card2:#102519;
  --line:rgba(125,255,192,.14);
  --line2:rgba(125,255,192,.28);
  --txt:#e8f5ee;
  --dim:#9db8ab;
  --dim2:#7a938a;
  --acc:#5cf2a8;
  --acc2:#2fd98c;
  --gold:#ffd166;
  --r:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 500px at 12% -8%,rgba(47,217,140,.16),transparent 60%),
    radial-gradient(700px 460px at 92% 4%,rgba(92,242,168,.08),transparent 62%),
    linear-gradient(180deg,#06110d 0%,#071512 45%,#06110d 100%);
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.35;
  background-image:linear-gradient(rgba(125,255,192,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(125,255,192,.045) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 72%);
}
.wrap{position:relative;z-index:1}
a{color:var(--acc);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}

/* header */
header.top{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px);
  background:rgba(6,17,13,.82);
  border-bottom:1px solid var(--line);
}
.top-in{
  max-width:1120px;margin:0 auto;padding:12px 20px;
  display:flex;align-items:center;gap:18px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.4px;color:var(--txt);white-space:nowrap}
.brand:hover{text-decoration:none}
.brand .dot{
  width:26px;height:26px;flex:0 0 26px;border-radius:8px;
  background:linear-gradient(145deg,var(--acc),#0f7a4d);
  box-shadow:0 0 0 1px rgba(125,255,192,.4),0 0 18px rgba(92,242,168,.35);
  display:grid;place-items:center;font-size:13px;color:#04140d;font-weight:900;
}
.brand small{display:block;font-size:11px;color:var(--dim2);font-weight:500;letter-spacing:1.4px}
nav.top-nav{display:flex;gap:20px;margin-left:auto;font-size:14px;flex-wrap:wrap}
nav.top-nav a{color:var(--dim);white-space:nowrap}
nav.top-nav a:hover{color:var(--acc);text-decoration:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:11px;font-weight:700;font-size:15px;
  background:linear-gradient(135deg,var(--acc),var(--acc2));color:#04140d;
  border:none;cursor:pointer;transition:transform .16s ease,box-shadow .16s ease;
  box-shadow:0 8px 24px rgba(47,217,140,.22);
}
.btn:hover{transform:translateY(-1px);box-shadow:0 12px 30px rgba(47,217,140,.32);text-decoration:none}
.btn.ghost{background:transparent;color:var(--acc);border:1px solid var(--line2);box-shadow:none}
.btn.ghost:hover{background:rgba(92,242,168,.08)}
.top-cta{margin-left:8px}

/* hero */
.hero{max-width:1120px;margin:0 auto;padding:64px 20px 40px;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:1.6px;text-transform:uppercase;color:var(--acc);
  border:1px solid var(--line2);border-radius:999px;padding:5px 12px;
  background:rgba(92,242,168,.06);margin-bottom:18px;
}
h1{font-size:clamp(30px,4.4vw,50px);line-height:1.18;letter-spacing:-.5px;font-weight:850}
h1 em{font-style:normal;color:var(--acc);text-shadow:0 0 28px rgba(92,242,168,.35)}
.lead{font-size:17px;color:var(--dim);margin-top:18px;max-width:600px}
.hero-actions{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
.facts{display:flex;gap:26px;margin-top:34px;flex-wrap:wrap}
.fact b{display:block;font-size:22px;color:var(--acc);font-weight:800}
.fact span{font-size:12.5px;color:var(--dim2);letter-spacing:.6px}

/* hud card */
.hud{
  border:1px solid var(--line);border-radius:20px;padding:20px;
  background:linear-gradient(170deg,rgba(16,37,25,.92),rgba(8,22,17,.92));
  box-shadow:0 24px 60px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.04);
  position:relative;overflow:hidden;
}
.hud::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(125,255,192,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(125,255,192,.05) 1px,transparent 1px);
  background-size:26px 26px;opacity:.6;
}
.hud-title{display:flex;justify-content:space-between;align-items:center;font-size:12px;letter-spacing:1.2px;color:var(--dim2);position:relative}
.hud-title .live{display:inline-flex;align-items:center;gap:6px;color:var(--acc)}
.hud-title .live i{width:7px;height:7px;border-radius:50%;background:var(--acc);box-shadow:0 0 10px var(--acc);display:inline-block}
.hand{position:relative;margin-top:16px;border-radius:14px;border:1px solid var(--line);padding:16px;background:rgba(4,16,11,.6)}
.hand .cards{display:flex;gap:8px;margin-bottom:12px}
.pcard{
  width:54px;height:74px;border-radius:8px;background:#f4fbf7;color:#0b1b14;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  font-weight:800;font-size:20px;line-height:1;box-shadow:0 6px 16px rgba(0,0,0,.4);
}
.pcard.red{color:#c0392b}
.pcard small{font-size:12px;margin-top:3px}
.rows{display:grid;gap:8px;font-size:13.5px}
.row{display:flex;justify-content:space-between;gap:12px;padding:7px 0;border-bottom:1px dashed rgba(125,255,192,.12)}
.row:last-child{border-bottom:none}
.row span{color:var(--dim2)}
.row b{color:var(--txt);font-weight:600}
.row b.hi{color:var(--acc)}
.bar{height:7px;border-radius:99px;background:rgba(125,255,192,.12);overflow:hidden;margin-top:6px}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--acc2),var(--acc));border-radius:99px}

/* sections */
section{max-width:1120px;margin:0 auto;padding:56px 20px}
.sec-head{max-width:760px;margin-bottom:32px}
.sec-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25;letter-spacing:-.3px;font-weight:820}
.sec-head p{color:var(--dim);margin-top:12px}
.grid{display:grid;gap:16px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{
  border:1px solid var(--line);border-radius:var(--r);padding:22px;
  background:linear-gradient(170deg,rgba(16,37,25,.8),rgba(9,24,18,.8));
  transition:border-color .18s ease,transform .18s ease;
}
.card:hover{border-color:var(--line2);transform:translateY(-2px)}
.card h3{font-size:17px;margin-bottom:8px;font-weight:750}
.card p{font-size:14.5px;color:var(--dim)}
.card .num{font-size:12px;color:var(--acc);letter-spacing:1.4px;font-weight:700;margin-bottom:10px;display:block}

/* prose */
.prose{max-width:820px}
.prose h2{font-size:clamp(22px,2.6vw,30px);margin:38px 0 14px;line-height:1.3;font-weight:800;letter-spacing:-.2px}
.prose h3{font-size:19px;margin:26px 0 10px;font-weight:750}
.prose p{color:#cfe3d8;margin:12px 0}
.prose ul,.prose ol{margin:12px 0 12px 22px;color:#cfe3d8}
.prose li{margin:7px 0}
.prose strong{color:#fff}
.prose blockquote{
  border-left:3px solid var(--acc);background:rgba(92,242,168,.07);
  padding:14px 18px;border-radius:0 10px 10px 0;margin:18px 0;color:#d9efe4;
}
.prose code{background:rgba(92,242,168,.12);padding:2px 6px;border-radius:5px;font-size:.92em;color:var(--acc)}
.prose table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.prose th{background:rgba(92,242,168,.09);color:var(--acc);font-weight:700}
.prose td{color:#cfe3d8}

/* price */
.price-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.pcard-price{
  border:1px solid var(--line);border-radius:var(--r);padding:20px;background:linear-gradient(170deg,rgba(16,37,25,.85),rgba(9,24,18,.85));
  display:flex;flex-direction:column;gap:6px;position:relative;
}
.pcard-price.best{border-color:var(--line2);box-shadow:0 0 0 1px rgba(92,242,168,.25),0 18px 40px rgba(0,0,0,.35)}
.pcard-price .tag{position:absolute;top:-10px;right:14px;background:var(--acc);color:#04140d;font-size:11px;font-weight:800;padding:2px 8px;border-radius:99px}
.pcard-price h3{font-size:15px;color:var(--dim);font-weight:600}
.pcard-price .amt{font-size:26px;font-weight:850;color:var(--txt);letter-spacing:-.5px}
.pcard-price .amt small{font-size:13px;color:var(--dim2);font-weight:500}
.pcard-price .usdt{font-size:12.5px;color:var(--dim2)}
.pcard-price ul{list-style:none;font-size:13px;color:var(--dim);margin-top:8px}
.pcard-price li{padding-left:16px;position:relative}
.pcard-price li::before{content:"✓";position:absolute;left:0;color:var(--acc)}

/* faq */
details{
  border:1px solid var(--line);border-radius:12px;padding:0;margin:10px 0;background:rgba(13,32,24,.7);
}
details summary{
  cursor:pointer;padding:16px 18px;font-weight:650;font-size:15.5px;list-style:none;
  display:flex;justify-content:space-between;gap:14px;align-items:center;
}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";color:var(--acc);font-size:20px;line-height:1;flex:0 0 auto}
details[open] summary::after{content:"−"}
details .ans{padding:0 18px 16px;color:var(--dim);font-size:14.5px}

/* links matrix */
.linkmatrix{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;font-size:13.5px}
.linkmatrix a{
  border:1px solid var(--line);border-radius:10px;padding:10px 12px;color:var(--dim);
  background:rgba(13,32,24,.5);
}
.linkmatrix a:hover{color:var(--acc);border-color:var(--line2);text-decoration:none}

/* cta band */
.band{
  max-width:1120px;margin:20px auto 0;padding:40px 28px;border-radius:20px;
  border:1px solid var(--line2);
  background:linear-gradient(135deg,rgba(47,217,140,.16),rgba(9,24,18,.9) 55%);
  display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;
}
.band h2{font-size:clamp(22px,3vw,30px);font-weight:830;letter-spacing:-.3px}
.band p{color:var(--dim);margin-top:8px;font-size:15px}

/* footer */
footer{margin-top:70px;border-top:1px solid var(--line);padding:36px 20px 50px;color:var(--dim2);font-size:13.5px}
.foot-in{max-width:1120px;margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
.foot-in h4{color:var(--txt);font-size:14px;margin-bottom:10px;font-weight:700}
.foot-in a{color:var(--dim2);display:block;padding:3px 0}
.foot-in a:hover{color:var(--acc);text-decoration:none}
.copy{max-width:1120px;margin:26px auto 0;padding-top:18px;border-top:1px solid rgba(125,255,192,.08);font-size:12.5px;color:#6b847a}

@media(max-width:900px){
  .hero{grid-template-columns:1fr;padding-top:40px;gap:30px}
  .g3,.g4,.price-grid,.linkmatrix{grid-template-columns:repeat(2,1fr)}
  nav.top-nav{display:none}
  .top-cta{margin-left:auto}
  .foot-in{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  body{font-size:15.5px}
  .g3,.g4,.price-grid{grid-template-columns:1fr}
  .linkmatrix{grid-template-columns:1fr 1fr}
  .hero{padding:32px 16px 26px}
  section{padding:38px 16px}
  .band{margin:16px;padding:26px 20px;border-radius:16px}
  .foot-in{grid-template-columns:1fr}
  .facts{gap:18px}
  .fact b{font-size:19px}
  .prose table{display:block;overflow-x:auto}
  details summary{font-size:14.5px}
}