/* 亿火智能 官网 —— 2026-10-12 创建
   配色沿用应用端设计令牌，保证从官网点进产品视觉一致 */
:root{
  --bg:#070b17;
  --panel:#0d1324;
  --panel2:#11192d;
  --line:#202b43;
  --text:#f5f7ff;
  --muted:#8f99ae;
  --cyan:#17c7f4;
  --purple:#7c5cff;
  --green:#39d98a;
  --amber:#ffa63d;
  --grad:linear-gradient(135deg,#18c9f1,#7659f4);
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{
  margin:0;background:var(--bg);color:var(--text);
  font:15px/1.6 Inter,"Microsoft YaHei",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0}
img{max-width:100%}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  border:0;border-radius:10px;padding:11px 20px;font-size:14px;font-weight:600;
  color:#fff;cursor:pointer;font-family:inherit;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--grad);box-shadow:0 8px 25px #316ff83d}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px #316ff86b}
.btn-outline{border:1px solid #2b3752;background:#0c1322;color:#c8d2e4}
.btn-outline:hover{border-color:#3f7fa5;color:#fff;transform:translateY(-2px)}
.btn.lg{padding:15px 30px;font-size:15px;border-radius:12px}
.btn-disabled{background:#161f33;color:#6d788e;cursor:default;border:1px dashed #2c3852}

/* ---------- 顶部导航 ---------- */
.hdr{
  position:sticky;top:0;z-index:60;height:72px;
  display:flex;align-items:center;gap:18px;padding:0 24px;
  background:#080c19e6;border-bottom:1px solid #151d30;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
}
.logo{display:flex;align-items:center;font-size:20px;font-weight:800;white-space:nowrap;letter-spacing:.02em}
.logo .mark{color:var(--cyan);font-size:28px;margin-right:7px;line-height:1}
.hdr nav{display:flex;gap:34px;margin:0 auto}
.hdr nav a{color:#8993aa;font-size:14px;position:relative;padding:6px 0;transition:color .18s ease}
.hdr nav a:hover{color:#20cef4}
.hdr nav a:after{
  content:"";position:absolute;left:50%;right:50%;bottom:-2px;height:2px;border-radius:2px;
  background:#1cccf3;transition:left .2s ease,right .2s ease;
}
.hdr nav a:hover:after{left:0;right:0}
.menu-btn{
  display:none;margin-left:auto;background:#111a2c;border:1px solid #26324a;color:#c7d2e6;
  border-radius:9px;width:40px;height:40px;font-size:17px;cursor:pointer;
}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:96px 0 0;
  background:
    radial-gradient(circle at 82% 30%,#0a3040 0,transparent 42%),
    radial-gradient(circle at 14% 42%,#171340 0,transparent 44%);
}
#fx{position:absolute;inset:0;width:100%;height:100%;display:block}
.hero-glow{
  position:absolute;width:640px;height:640px;left:50%;top:-220px;margin-left:-320px;
  background:radial-gradient(circle,#1ab6e52b 0,transparent 66%);
  pointer-events:none;transition:transform .5s ease-out;
}
.hero-inner{position:relative;z-index:2;text-align:center;padding-top:14px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid #22304b;background:#0c1526cc;border-radius:999px;
  padding:7px 16px;color:#9fb0c9;font-size:12.5px;letter-spacing:.04em;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 9px var(--green)}
.hero h1{
  font-size:58px;line-height:1.14;letter-spacing:-1.5px;margin:26px 0 22px;font-weight:800;
}
.grad{
  background:linear-gradient(92deg,#12cdf3,#8657ff 62%,#c07bff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p{max-width:660px;margin:0 auto;color:#8f99ae;font-size:16.5px;line-height:1.95}
.hero-btns{display:flex;gap:14px;justify-content:center;margin-top:34px;flex-wrap:wrap}

.hero-tags{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(6,1fr);gap:8px;
  margin-top:66px;padding-bottom:46px;
}
.hero-tags li{
  display:flex;flex-direction:column;align-items:center;gap:9px;
  color:#8b96ab;font-size:12.5px;transition:color .2s ease,transform .2s ease;
}
.hero-tags li:hover{color:#e6edfb;transform:translateY(-3px)}
.hero-tags b{
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  border:1px solid #2a3c58;background:radial-gradient(circle at 50% 0,#16273f,#0a1120);
  color:#2fd0f2;font-size:18px;font-weight:700;
  box-shadow:0 0 0 6px #0d1b2d,inset 0 0 18px #17c7f41f;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.hero-tags li:hover b{border-color:#2fd0f2;box-shadow:0 0 0 6px #0d1b2d,0 0 22px #17c7f438}

/* ---------- 数据条 ---------- */
.stats{border-top:1px solid #141c2e;border-bottom:1px solid #141c2e;background:#080d1a}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);text-align:center;padding:38px 24px}
.stat b{
  display:block;font-size:34px;font-weight:800;letter-spacing:-.5px;
  background:linear-gradient(92deg,#20cdf3,#a37bff);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat span{color:#8b96ab;font-size:13px}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0}
.section-alt{background:#080d1a;border-top:1px solid #141c2e;border-bottom:1px solid #141c2e}
.sec-head{text-align:center;max-width:720px;margin:0 auto 54px}
.sec-tag{
  display:inline-block;color:#20cdf3;font-size:12.5px;letter-spacing:.16em;
  border:1px solid #1d3a52;background:#0b1727;border-radius:999px;padding:6px 15px;
}
.sec-head h2{font-size:34px;line-height:1.32;margin:18px 0 14px;letter-spacing:-.6px}
.sec-head p{color:var(--muted);margin:0}

/* ---------- 产品矩阵 ---------- */
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.product{
  display:flex;flex-direction:column;overflow:hidden;
  border:1px solid var(--line);border-radius:20px;
  background:linear-gradient(160deg,#0e1626,#0a1020);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.product:hover{transform:translateY(-6px);box-shadow:0 22px 45px #0000005c}
.product.accent-cyan:hover{border-color:#1c6f8b}
.product.accent-purple:hover{border-color:#6a4bd0}
.product.accent-amber:hover{border-color:#8a6120}

.p-visual{
  position:relative;height:164px;display:grid;place-items:center;overflow:hidden;
  border-bottom:1px solid #182135;
}
.accent-cyan .p-visual{background:radial-gradient(circle at 70% 15%,#0d3d55,#0a1424 72%)}
.accent-purple .p-visual{background:radial-gradient(circle at 70% 15%,#2c1f57,#0c1122 72%)}
.accent-amber .p-visual{background:radial-gradient(circle at 70% 15%,#4a3212,#12100c 72%)}
.p-mock{
  width:200px;padding:14px;border-radius:12px;
  background:#070c17cc;border:1px solid #2a3650;
}
.p-mock-bar{display:block;height:7px;width:54px;border-radius:6px;background:#26314a;margin-bottom:12px}
.p-mock-row{display:flex;gap:6px;margin-bottom:12px}
.p-mock-row i{flex:1;height:26px;border-radius:6px;background:#101a2c;border:1px solid #1e2a40}
.p-mock-line{height:7px;border-radius:5px;background:#1b2740;margin-bottom:8px}
.p-mock-line.w85{width:85%}.p-mock-line.w70{width:70%}.p-mock-line.w60{width:60%}
.p-mock-line.w55{width:55%}.p-mock-line.w45{width:45%}.p-mock-line.w40{width:40%}
.p-mock-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-bottom:12px}
.p-mock-grid i{height:30px;border-radius:6px;background:#141c33;border:1px solid #26304d}
.p-mock-wave{display:flex;align-items:flex-end;gap:4px;height:44px;margin-bottom:12px}
.p-mock-wave i{flex:1;border-radius:3px;background:linear-gradient(#ffb457,#e07b1d)}
.p-mock-wave i:nth-child(1){height:32%}.p-mock-wave i:nth-child(2){height:58%}
.p-mock-wave i:nth-child(3){height:82%}.p-mock-wave i:nth-child(4){height:46%}
.p-mock-wave i:nth-child(5){height:94%}.p-mock-wave i:nth-child(6){height:62%}
.p-mock-wave i:nth-child(7){height:78%}.p-mock-wave i:nth-child(8){height:38%}
.p-mock-wave i:nth-child(9){height:88%}.p-mock-wave i:nth-child(10){height:52%}
.p-mock-wave i:nth-child(11){height:70%}.p-mock-wave i:nth-child(12){height:30%}

.p-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1}
.p-top{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.p-top h3{font-size:21px;letter-spacing:-.2px}
.badge{font-size:11px;padding:3px 9px;border-radius:999px;border:1px solid}
.badge.live{color:#4ee0a3;border-color:#1d5540;background:#0d2119}
.badge.soon{color:#ffbf6b;border-color:#5b4118;background:#241a08}
.p-desc{color:#93a0b6;font-size:14px;line-height:1.85;margin:0 0 18px;flex:1}
.p-chips{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:22px}
.p-chips li{
  font-size:11.5px;color:#98a5bd;background:#101a2c;border:1px solid #202c44;
  border-radius:999px;padding:5px 11px;
}
.p-btn{width:100%}
.product.soon .p-btn{pointer-events:none}

/* ---------- 核心能力 ---------- */
.caps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cap{
  border:1px solid var(--line);border-radius:16px;padding:26px;
  background:linear-gradient(150deg,#0d1526,#0a101d);
  transition:transform .22s ease,border-color .22s ease;
}
.cap:hover{transform:translateY(-4px);border-color:#2b3c5b}
.cap i{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,#12334b,#302260);color:#21cff3;
  font-size:15px;font-style:normal;font-weight:700;
}
.cap h4{font-size:17.5px;margin:18px 0 10px}
.cap p{color:var(--muted);font-size:13.5px;margin:0;line-height:1.85}

/* ---------- 工作流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.flow-step{border-left:2px solid #29425c;padding:6px 0 6px 20px}
.flow-step b{
  display:block;font-size:13px;letter-spacing:.1em;font-weight:700;
  background:linear-gradient(92deg,#20cdf3,#8f6bff);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.flow-step h4{font-size:17px;margin:14px 0 8px}
.flow-step p{color:var(--muted);font-size:13.5px;margin:0}

/* ---------- 关于我们 ---------- */
.about{display:grid;grid-template-columns:1.25fr 1fr;gap:52px;align-items:start}
.about h2{font-size:32px;line-height:1.35;margin:18px 0 20px;letter-spacing:-.6px}
.about-p{color:#93a0b6;line-height:2;margin:0 0 16px}
.about-facts{display:flex;gap:36px;margin-top:30px}
.about-facts b{
  display:block;font-size:26px;font-weight:800;
  background:linear-gradient(92deg,#20cdf3,#a37bff);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.about-facts span{color:#7f8ba1;font-size:12.5px}
.about-card{
  border:1px solid var(--line);border-radius:18px;padding:28px;
  background:linear-gradient(150deg,#0e1728,#0a101d);
}
.about-card h4{font-size:15px;color:#c9d4e6;margin-bottom:18px}
.about-card dl{margin:0}
.about-card dt{color:#6f7b92;font-size:12px;margin-top:16px}
.about-card dt:first-child{margin-top:0}
.about-card dd{margin:5px 0 0;font-size:14px;color:#dbe3f1}

/* ---------- CTA ---------- */
.cta{
  padding:78px 0;text-align:center;
  background:radial-gradient(circle at 50% 0,#123a55 0,transparent 58%),#080d1a;
  border-top:1px solid #141c2e;border-bottom:1px solid #141c2e;
}
.cta h2{font-size:32px;letter-spacing:-.6px;margin-bottom:14px}
.cta p{color:var(--muted);margin:0 0 30px}

/* ---------- 联系我们 ---------- */
.contacts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.contact{
  border:1px solid var(--line);border-radius:18px;padding:28px;text-align:center;
  background:linear-gradient(150deg,#0d1526,#0a101d);
  transition:transform .22s ease,border-color .22s ease;
}
.contact:hover{transform:translateY(-4px);border-color:#2b3c5b}
.contact h4{font-size:17px;margin-bottom:9px}
.contact p{color:var(--muted);font-size:13px;margin:0 0 20px}
.qr{
  width:178px;height:178px;margin:0 auto;border-radius:14px;padding:8px;
  border:1px solid #223049;background:#fff;box-sizing:content-box;
  box-shadow:0 10px 26px rgba(0,0,0,.35);
  display:grid;place-items:center;color:#5f6b83;font-size:12px;
}
.qr img{display:block;width:100%;height:100%;border-radius:8px;object-fit:contain}

/* ---------- 智能体定制 ---------- */
.agent-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.agent-card{
  border:1px solid var(--line);border-radius:16px;padding:24px 22px;
  background:linear-gradient(160deg,#0d1526,#0a101d);
  transition:transform .22s ease,border-color .22s ease;
}
.agent-card:hover{transform:translateY(-4px);border-color:#2b3c5b}
.agent-ico{
  display:grid;place-items:center;width:42px;height:42px;border-radius:12px;
  font-size:17px;margin-bottom:14px;
  background:rgba(23,199,244,.1);border:1px solid rgba(23,199,244,.28);color:#5fe0ff;
}
.agent-card h3{font-size:16px;margin:0 0 9px}
.agent-card p{color:var(--muted);font-size:13px;line-height:1.85;margin:0}
.agent-cta{
  margin-top:26px;display:grid;grid-template-columns:1fr auto;gap:34px;align-items:center;
  border:1px solid var(--line);border-radius:22px;padding:32px 34px;
  background:linear-gradient(120deg,#0e1830,#0b1220 58%,#0d1a2c);
}
.agent-cta h3{font-size:22px;margin:0 0 14px;letter-spacing:-.4px}
.agent-steps{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 16px;padding:0;list-style:none}
.agent-steps li{
  display:flex;align-items:center;gap:7px;font-size:12.5px;color:#c2cddf;
  border:1px solid #223049;background:#0c1424;border-radius:20px;padding:6px 14px;
}
.agent-steps b{color:var(--cyan);font-size:11px;letter-spacing:.4px}
.agent-note{color:var(--muted);font-size:12.5px;margin:0}
.agent-qr{text-align:center}
.agent-qr .qr{width:164px;height:164px}
.agent-qr-tip{
  display:inline-flex;align-items:center;gap:7px;margin-top:14px;padding:6px 14px;
  border-radius:20px;background:rgba(23,199,244,.1);border:1px solid rgba(23,199,244,.26);
  color:#9fdcf6;font-size:12px;
}
.agent-qr-tip i{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green)}

/* ---------- 页脚 ---------- */
.ftr{border-top:1px solid #141c2e;background:#060911;padding:56px 0 26px}
.ftr-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px}
.ftr-brand p{color:#727d92;font-size:13px;line-height:1.9;margin:16px 0 0;max-width:320px}
.ftr-col{display:flex;flex-direction:column;gap:11px}
.ftr-col h5{font-size:13px;color:#c2cddf;margin-bottom:4px;font-weight:700}
.ftr-col a,.ftr-soon{color:#727d92;font-size:13px;transition:color .18s ease}
.ftr-col a:hover{color:#20cdf4}
.ftr-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:22px;border-top:1px solid #121a2b;
  color:#5f6a80;font-size:12.5px;
}
.ftr-bottom a{color:#5f6a80}
.ftr-bottom a:hover{color:#20cdf4}

/* ---------- 滚动动画 ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:1040px){
  .hero h1{font-size:48px}
  .products,.caps{grid-template-columns:repeat(2,1fr)}
  .agent-grid{grid-template-columns:repeat(2,1fr)}
  .about{grid-template-columns:1fr;gap:34px}
}
@media(max-width:860px){
  .hdr nav{
    position:fixed;left:0;right:0;top:72px;flex-direction:column;gap:0;
    background:#0a0f1d;border-bottom:1px solid #1a2338;padding:8px 24px 18px;
    display:none;
  }
  .hdr nav.open{display:flex}
  .hdr nav a{padding:14px 0;border-bottom:1px solid #141d2f}
  .hdr nav a:last-child{border-bottom:0}
  .menu-btn{display:block}
  .hdr>.btn-primary{display:none}
  .hero{padding-top:70px}
  .hero h1{font-size:38px;letter-spacing:-.8px}
  .hero p{font-size:15px}
  .hero-tags{grid-template-columns:repeat(3,1fr);gap:20px 8px;margin-top:48px}
  .stat-grid{grid-template-columns:1fr 1fr;gap:26px}
  .stat b{font-size:28px}
  .section{padding:66px 0}
  .sec-head h2{font-size:26px}
  .products,.caps,.flow,.contacts{grid-template-columns:1fr}
  .agent-grid{grid-template-columns:1fr}
  .agent-cta{grid-template-columns:1fr;gap:26px;text-align:center;padding:28px 24px}
  .agent-steps{justify-content:center}
  .agent-cta h3{font-size:19px}
  .cta h2{font-size:25px}
  .ftr-grid{grid-template-columns:1fr 1fr;gap:30px}
  .ftr-brand{grid-column:1/-1}
}
@media(max-width:520px){
  .wrap{padding:0 18px}
  .hero h1{font-size:32px}
  .hero-tags b{width:48px;height:48px;font-size:16px}
  .about-facts{gap:24px}
  .ftr-grid{grid-template-columns:1fr}
}

@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  #fx{display:none}
}

/* ---------- 进入工作台：三产品选择弹窗 ---------- */
.picker{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:24px}
.picker[hidden]{display:none}
.picker-mask{position:absolute;inset:0;background:#04060dcc;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);animation:pickerFade .2s ease}
.picker-panel{
  position:relative;width:100%;max-width:470px;
  background:linear-gradient(180deg,#101a30,#0b1120 62%,#0a0f1c);
  border:1px solid var(--line);border-radius:20px;padding:30px 28px 26px;
  box-shadow:0 30px 80px #000000a6,0 0 0 1px #ffffff0a inset;
  animation:pickerUp .26s cubic-bezier(.22,.9,.3,1);
}
.picker-xb{
  position:absolute;top:14px;right:14px;width:34px;height:34px;
  border:1px solid var(--line);background:#0f1729;color:#8f99ae;border-radius:10px;
  font-size:14px;line-height:1;cursor:pointer;font-family:inherit;
  transition:color .18s ease,border-color .18s ease,transform .18s ease,background .18s ease;
}
.picker-xb:hover{color:#fff;border-color:#3f7fa5;background:#132039;transform:rotate(90deg)}
.picker-panel h3{font-size:19px;letter-spacing:-.2px;padding-right:34px}
.picker-sub{color:var(--muted);font-size:13px;margin:8px 0 20px}
.picker-list{display:flex;flex-direction:column;gap:12px}
.pick{
  display:flex;align-items:center;gap:14px;padding:14px 16px;
  border:1px solid var(--line);border-radius:14px;background:#0c1424;
  transition:transform .18s ease,border-color .18s ease,background .18s ease,box-shadow .18s ease;
}
.pick:hover{transform:translateX(4px);border-color:#2c74a0;background:#101a2e;box-shadow:0 10px 26px #0a1a2e8c}
.pick:focus-visible{outline:2px solid #2fd3ff;outline-offset:2px}
.pick-icon{width:44px;height:44px;flex:0 0 44px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:700}
.i-cyan{background:#08283a;color:#2fd3ff;border:1px solid #14465f}
.i-purple{background:#1a1436;color:#a58bff;border:1px solid #342a63}
.i-amber{background:#2a1d08;color:#ffb14d;border:1px solid #5b4118}
.pick-main{display:flex;flex-direction:column;gap:3px;min-width:0;flex:1}
.pick-main b{font-size:15px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.pick-main em{font-style:normal;font-size:12.5px;color:var(--muted)}
.pick-main .badge{font-weight:600;white-space:nowrap}
.pick-go{font-size:12.5px;color:#5f6a80;white-space:nowrap;transition:color .18s ease}
.pick:hover .pick-go{color:#2fd3ff}
.pick-off{opacity:.55;cursor:not-allowed}
.pick-off:hover{transform:none;border-color:var(--line);background:#0c1424;box-shadow:none}
.pick-off:hover .pick-go{color:#5f6a80}
body.picker-open{overflow:hidden}
@keyframes pickerFade{from{opacity:0}to{opacity:1}}
@keyframes pickerUp{from{opacity:0;transform:translateY(14px) scale(.985)}to{opacity:1;transform:none}}
@media(max-width:520px){
  .picker{padding:14px;align-items:flex-end}
  .picker-panel{max-width:100%;padding:26px 18px 20px;border-radius:18px 18px 14px 14px}
  .pick{padding:13px;gap:11px}
  .pick-icon{width:40px;height:40px;flex-basis:40px;font-size:17px}
}
@media(prefers-reduced-motion:reduce){
  .picker-mask,.picker-panel{animation:none}
}