/* 德朋推广官网样式 - DEPENG STUDIO */
:root{
  --bg:#0a0a0a;
  --bg2:#111113;
  --card:#141416;
  --line:rgba(255,255,255,.10);
  --txt:#f2f2f0;
  --muted:#9a9a96;
  --neon:#c8ff2e;      /* 霓虹黄绿 */
  --neon-dim:rgba(200,255,46,.12);
  --hot:#ff5c2b;       /* 橙红 */
  --hot-dim:rgba(255,92,43,.12);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Microsoft YaHei","PingFang SC","Segoe UI",system-ui,sans-serif;
  background:var(--bg);
  color:var(--txt);
  line-height:1.75;
  overflow-x:hidden;
}
/* 网格底纹 + 光晕 */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(700px 420px at 78% -8%,rgba(200,255,46,.10),transparent 60%),
    radial-gradient(700px 420px at 8% 32%,rgba(255,92,43,.08),transparent 60%),
    var(--bg);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:56px 56px;
}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}
.mono{font-family:Consolas,"Courier New",monospace}

/* ===== 导航 ===== */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(10,10,10,.82);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{font-size:19px;font-weight:900;letter-spacing:2px;display:flex;align-items:center;gap:10px}
.logo .dot{width:9px;height:9px;border-radius:50%;background:var(--hot);box-shadow:0 0 10px var(--hot)}
.logo em{font-style:normal;color:var(--neon);font-family:Consolas,monospace;font-size:13px;letter-spacing:3px;margin-left:2px}
.logo em a{color:#c8ff2e;font-size:15px;}
.nav-links{display:flex;gap:30px;font-size:14px;align-items:center}
.nav-links a{color:var(--muted);text-decoration:none;transition:color .2s}
.nav-links a:hover{color:var(--neon)}
.nav-cta{
  border:1px solid var(--neon);color:var(--neon)!important;
  padding:8px 20px;border-radius:4px;letter-spacing:1px;transition:all .2s;
}
.nav-cta:hover{background:var(--neon);color:#0a0a0a!important}
@media(max-width:900px){.nav-links{display:none}}

/* ===== HERO ===== */
.hero{padding:clamp(60px,9vw,110px) 0 70px}
.hero-flex{display:flex;align-items:center;gap:56px;flex-wrap:wrap}
.hero-left{flex:1 1 480px}
.hero-right{flex:0 1 400px;display:flex;justify-content:center}

.rec-tag{
  display:inline-flex;align-items:center;gap:12px;margin-bottom:26px;
  color:var(--neon);font-size:12.5px;letter-spacing:2px;
}
.rec-tag::before{content:"";width:44px;height:1px;background:var(--neon)}
.rec-tag .blink{animation:blink 1.2s steps(1) infinite}
@keyframes blink{50%{opacity:0}}

.hero h1{
  font-size:clamp(34px,5.6vw,60px);font-weight:900;line-height:1.32;letter-spacing:1px;
}
.h-green{
  color:transparent;
  -webkit-text-stroke:1.5px var(--neon);
  text-shadow:0 0 26px rgba(200,255,46,.30);
}
.h-orange{
  color:var(--hot);
  text-shadow:0 0 26px rgba(255,92,43,.35);
}
.hero p.sub{
  color:var(--muted);font-size:15.5px;max-width:560px;margin-top:24px;
}
.hero p.sub b{color:var(--txt);font-weight:700}
.hero p.sub .hl-g{color:var(--neon);font-weight:700}
.hero-cta{display:flex;gap:16px;margin-top:38px;flex-wrap:wrap}
.btn{
  display:inline-block;padding:14px 32px;font-size:15.5px;font-weight:800;
  text-decoration:none;letter-spacing:1px;border-radius:4px;
  transition:transform .2s,box-shadow .2s;
}
.btn-neon{
  background:var(--neon);color:#0a0a0a;
  box-shadow:0 0 24px rgba(200,255,46,.28);
}
.btn-neon:hover{transform:translateY(-3px);box-shadow:0 8px 34px rgba(200,255,46,.45)}
.btn-ghost{border:1px solid var(--txt);color:var(--txt);background:transparent}
.btn-ghost:hover{transform:translateY(-3px);border-color:var(--neon);color:var(--neon)}

/* AI 回答预览卡（倾斜） */
.acard{
  width:min(340px,84vw);border-radius:16px;position:relative;
  background:linear-gradient(165deg,#1c2a10 0%,#111113 46%,#2a150c 100%);
  border:1px solid rgba(255,255,255,.14);
  transform:rotate(4deg);
  box-shadow:0 30px 70px rgba(0,0,0,.65),0 0 44px rgba(200,255,46,.08);
  display:flex;flex-direction:column;padding:22px 20px;
  transition:transform .35s;
}
.acard:hover{transform:rotate(1deg) translateY(-6px)}
.acard::before{
  content:"";position:absolute;inset:0;border-radius:16px;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:34px 34px;
}
.a-top{display:flex;align-items:center;gap:9px;position:relative;color:#fff;font-size:13px}
.a-top .tri{color:var(--neon)}
.a-top .a-src{margin-left:auto;color:var(--muted);font-size:11px;letter-spacing:2px}
.a-q{
  position:relative;margin-top:14px;background:rgba(255,255,255,.05);
  border:1px solid var(--line);border-radius:8px 8px 8px 2px;
  padding:10px 14px;font-size:13.5px;color:#d8d8d3;
}
.a-q b{color:var(--neon)}
.a-load{display:flex;gap:5px;margin:16px 0 10px;position:relative}
.a-load i{width:7px;height:7px;border-radius:50%;background:var(--neon);animation:dotp 1.1s infinite}
.a-load i:nth-child(2){animation-delay:.18s;background:#9fd12f}
.a-load i:nth-child(3){animation-delay:.36s;background:var(--hot)}
@keyframes dotp{0%,100%{opacity:.25;transform:translateY(0)}45%{opacity:1;transform:translateY(-4px)}}
.a-ans{position:relative;font-size:13px;color:#cfd3c8}
.a-ans b{color:var(--neon);border-bottom:1px dashed rgba(200,255,46,.55)}
.a-ans .rank{
  display:inline-block;margin-left:6px;padding:1px 9px;border-radius:999px;
  background:var(--hot-dim);border:1px solid rgba(255,92,43,.45);color:var(--hot);
  font-size:11px;letter-spacing:1px;
}
.a-foot{position:relative;color:#b9b9b4;font-size:11.5px;margin-top:16px;letter-spacing:1px}
.a-foot b{color:var(--neon)}
/* 顶部 AI 灯 */
.vrec{
  position:absolute;top:14px;right:16px;display:flex;align-items:center;gap:6px;
  color:var(--hot);font-size:11px;letter-spacing:2px;
}
.vrec i{width:8px;height:8px;border-radius:50%;background:var(--hot);box-shadow:0 0 8px var(--hot);animation:blink 1.2s steps(1) infinite}

/* ===== 通用区块 ===== */
section.block{padding:80px 0}
.sec-head{margin-bottom:52px;display:flex;align-items:end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.sec-kicker{color:var(--neon);font-size:12.5px;letter-spacing:3px;font-family:Consolas,monospace}
.sec-head h2{font-size:clamp(26px,4vw,38px);font-weight:900;margin-top:10px;letter-spacing:1px}
.sec-head h2 em{font-style:normal;color:var(--hot)}
.sec-head p{color:var(--muted);font-size:14.5px;max-width:420px}

/* 业务网格：6列栅格，上行2卡各占3列，下行3卡各占2列，两行等宽无空余 */
.grid{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.card.wide{grid-column:span 3}
.card{grid-column:span 2}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:8px;
  padding:32px 28px;position:relative;overflow:hidden;
  transition:transform .25s,border-color .25s;
}
.card:hover{transform:translateY(-6px);border-color:var(--neon)}
@media(max-width:760px){
  .grid{grid-template-columns:1fr}
  .card,.card.wide{grid-column:auto}
}
.card .idx{
  font-family:Consolas,monospace;font-size:13px;color:var(--muted);letter-spacing:2px;
}
.card .icon{font-size:32px;margin-top:14px}
.card h3{font-size:20px;font-weight:800;margin:14px 0 10px}
.card p{color:var(--muted);font-size:14px}
.card .more{
  display:inline-block;margin-top:18px;color:var(--neon);font-size:13.5px;
  text-decoration:none;letter-spacing:1px;
}
.card:hover .more::after{content:" →"}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  font-size:12.5px;padding:4px 13px;border-radius:999px;
  border:1px solid var(--line);color:#cfd3c8;
}
.tag.g{border-color:rgba(200,255,46,.4);color:var(--neon);background:var(--neon-dim)}
.tag.o{border-color:rgba(255,92,43,.4);color:var(--hot);background:var(--hot-dim)}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:18px;counter-reset:step}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:8px;
  padding:28px 24px;counter-increment:step;position:relative;
}
.step::before{
  content:"0" counter(step);
  font-family:Consolas,monospace;font-size:34px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.2px var(--neon);
}
.step h4{font-size:16.5px;font-weight:800;margin:14px 0 8px}
.step p{color:var(--muted);font-size:13.5px}

/* 联系 */
.contact-box{
  border-radius:10px;padding:clamp(38px,6vw,64px);text-align:center;
  background:
    radial-gradient(500px 260px at 15% 0%,rgba(200,255,46,.12),transparent 60%),
    radial-gradient(500px 260px at 85% 100%,rgba(255,92,43,.10),transparent 60%),
    var(--bg2);
  border:1px solid var(--line);
}
.contact-box h2{font-size:clamp(24px,4vw,36px);font-weight:900;letter-spacing:1px}
.contact-box h2 em{font-style:normal;color:var(--neon)}
.contact-box p{color:var(--muted);margin-top:14px}
.contact-cards{display:flex;justify-content:center;gap:20px;margin-top:40px;flex-wrap:wrap}
.ccard{
  min-width:260px;background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:8px;padding:28px 32px;
}
.ccard .cl{font-size:12px;color:var(--muted);letter-spacing:3px;font-family:Consolas,monospace}
.ccard .cv{font-size:19px;font-weight:800;margin-top:8px;letter-spacing:.5px;word-break:break-all}
.ccard .cv.tel{color:var(--neon)}
.ccard .cv.wx{color:var(--hot)}
.contact-box .btn{margin-top:44px}

footer{border-top:1px solid var(--line);padding:36px 0;text-align:center;color:var(--muted);font-size:13px}
footer b{color:var(--txt)}
footer .mono{color:var(--neon);font-size:9px;letter-spacing:3px;margin-top:6px}
footer a{color:#c8ff2e;text-decoration:none}

/* ===== 公司简介 ===== */
.about-card{
  background:var(--card);border:1px solid var(--line);border-radius:10px;
  padding:clamp(28px,5vw,48px);position:relative;overflow:hidden;
  transition:border-color .25s;
}
.about-card:hover{border-color:rgba(200,255,46,.45)}
.about-card::before{
  content:"";position:absolute;inset:0 0 auto 0;height:3px;
  background:linear-gradient(90deg,var(--neon),var(--hot));
}
.about-card p{
  color:#cfcfca;font-size:15px;line-height:2.05;text-align:justify;margin-bottom:18px;
}
.about-card p:last-of-type{margin-bottom:24px}
.about-card b{color:var(--txt)}
.about-card .hl-g{color:var(--neon);font-weight:700}
.about-tags{display:flex;flex-wrap:wrap;gap:10px}
.about-tags .tag{font-size:13px;padding:6px 16px}
.about-card .more{
  display:inline-block;color:var(--neon);font-size:14px;font-weight:700;
  text-decoration:none;letter-spacing:1px;
}
.about-card .more::after{content:" →"}