/* ===========================================================
   AI易加 · main.css
   设计基调：深色科技底 + 青蓝/紫渐变高光 + 大量留白
   =========================================================== */

:root{
  --bg:          #070b17;
  --bg-2:        #0b1122;
  --surface:     rgba(255,255,255,.038);
  --surface-2:   rgba(255,255,255,.06);
  --line:        rgba(255,255,255,.09);
  --line-strong: rgba(255,255,255,.16);

  --text:        #eef2fb;
  --text-2:      #a8b3cd;
  --text-3:      #6f7c9b;

  --brand:       #2fe0c8;
  --brand-2:     #4d8dff;
  --brand-3:     #a06bff;
  --grad:        linear-gradient(100deg,var(--brand) 0%,var(--brand-2) 52%,var(--brand-3) 100%);

  --r-sm: 10px;
  --r:    16px;
  --r-lg: 24px;

  --wrap: 1180px;
  --ease: cubic-bezier(.22,.68,.28,1);

  --shadow: 0 18px 50px -22px rgba(0,0,0,.85);
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; scroll-padding-top:88px; -webkit-text-size-adjust:100%; }

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font:400 16px/1.75 "PingFang SC","Hiragino Sans GB","Microsoft YaHei",
       system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",sans-serif;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

h1,h2,h3,h4{ margin:0; line-height:1.25; font-weight:650; letter-spacing:-.01em; }
p{ margin:0; }
ul,ol{ margin:0; padding:0; list-style:none; }
a{ color:inherit; text-decoration:none; }
img,svg{ display:block; max-width:100%; }
button,input,select,textarea{ font:inherit; color:inherit; }

.wrap{ width:100%; max-width:var(--wrap); margin:0 auto; padding:0 24px; }
.sprite{ position:absolute; width:0; height:0; overflow:hidden; }

.ic{
  width:1.15em; height:1.15em; flex:none;
  fill:none; stroke:currentColor; stroke-width:1.7;
  stroke-linecap:round; stroke-linejoin:round;
}

.grad{
  background:var(--grad);
  -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent; color:transparent;
}

.skip-link{
  position:absolute; left:-9999px; top:0; z-index:200;
  padding:10px 16px; background:var(--brand); color:#04121b; border-radius:0 0 var(--r-sm) 0;
}
.skip-link:focus{ left:0; }

:focus-visible{ outline:2px solid var(--brand); outline-offset:3px; border-radius:4px; }

/* ---------------- Header ---------------- */
.site-header{
  position:sticky; top:0; z-index:100;
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  background:rgba(7,11,23,.62);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease), border-color .3s var(--ease);
}
.site-header.is-stuck{ background:rgba(7,11,23,.92); border-bottom-color:var(--line); }

.header-inner{ display:flex; align-items:center; gap:24px; height:68px; }

.brand{ display:flex; align-items:center; gap:10px; flex:none; }
.brand-text{ font-weight:700; font-size:17px; letter-spacing:.02em; }
.brand-text em{
  font-style:normal; font-size:11px; letter-spacing:.04em;
  margin-left:7px; color:var(--text-3);
}

.nav{ display:flex; gap:4px; margin-left:auto; }
.nav a{
  position:relative; padding:8px 13px; border-radius:999px;
  font-size:14.5px; color:var(--text-2);
  transition:color .2s var(--ease), background .2s var(--ease);
}
.nav a:hover{ color:var(--text); background:var(--surface-2); }
.nav a.is-active{ color:var(--text); }
.nav a.is-active::after{
  content:""; position:absolute; left:13px; right:13px; bottom:2px;
  height:2px; border-radius:2px; background:var(--grad);
}

.header-cta{ flex:none; }

.nav-toggle{
  display:none; width:40px; height:40px; margin-left:auto;
  background:var(--surface-2); border:1px solid var(--line);
  border-radius:12px; cursor:pointer; padding:0;
}
.nav-toggle span{
  display:block; width:17px; height:1.8px; margin:3.6px auto;
  background:var(--text); border-radius:2px;
  transition:transform .25s var(--ease), opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(5.4px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-5.4px) rotate(-45deg); }

.scroll-progress{
  height:2px; width:0; background:var(--grad);
  transition:width .1s linear;
}

/* ---------------- Buttons ---------------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 24px; border:1px solid transparent; border-radius:999px;
  font-size:15px; font-weight:600; cursor:pointer; white-space:nowrap;
  transition:transform .2s var(--ease), box-shadow .25s var(--ease),
             background .25s var(--ease), border-color .25s var(--ease);
}
.btn-sm{ padding:9px 18px; font-size:14px; }
.btn-block{ width:100%; }

.btn-primary{
  background:var(--grad); color:#04121b;
  box-shadow:0 10px 30px -12px rgba(77,141,255,.7);
}
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 16px 38px -12px rgba(77,141,255,.85); }

.btn-ghost{ background:var(--surface-2); border-color:var(--line-strong); color:var(--text); }
.btn-ghost:hover{ background:rgba(255,255,255,.1); transform:translateY(-2px); }

.btn:active{ transform:translateY(0); }

/* ---------------- Hero ---------------- */
.hero{ position:relative; padding:84px 0 40px; overflow:hidden; }

.hero-bg{ position:absolute; inset:0; z-index:-1; pointer-events:none; }
.orb{
  position:absolute; border-radius:50%; filter:blur(80px); opacity:.5;
  animation:drift 18s var(--ease) infinite alternate;
}
.orb-1{ width:520px; height:520px; top:-160px; left:-120px; background:#1c6cff; }
.orb-2{ width:440px; height:440px; top:40px; right:-140px; background:#12b39c; animation-delay:-6s; }
.orb-3{ width:380px; height:380px; bottom:-180px; left:38%; background:#7b3cff; opacity:.35; animation-delay:-12s; }

@keyframes drift{
  from{ transform:translate3d(0,0,0) scale(1); }
  to  { transform:translate3d(40px,-30px,0) scale(1.12); }
}

.grid-lines{
  position:absolute; inset:0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 60% at 50% 20%, #000 30%, transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 60% at 50% 20%, #000 30%, transparent 78%);
}

.hero-inner{
  display:grid; grid-template-columns:1.08fr .92fr;
  gap:56px; align-items:center;
}

.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  padding:6px 14px; margin-bottom:22px;
  border:1px solid var(--line-strong); border-radius:999px;
  background:var(--surface);
  font-size:13px; color:var(--brand); letter-spacing:.02em;
}

.hero h1{ font-size:clamp(32px,4.6vw,56px); font-weight:700; letter-spacing:-.03em; }
.lead{ margin-top:22px; max-width:34em; font-size:16.5px; color:var(--text-2); }

.hero-actions{ display:flex; gap:14px; margin-top:34px; flex-wrap:wrap; }

.hero-points{ display:flex; gap:22px; margin-top:28px; flex-wrap:wrap; }
.hero-points li{ display:flex; align-items:center; gap:7px; font-size:14px; color:var(--text-3); }
.hero-points .ic{ color:var(--brand); }

/* 动画进场 */
.hero-copy > *{ animation:rise .8s var(--ease) both; }
.hero-copy > *:nth-child(2){ animation-delay:.08s; }
.hero-copy > *:nth-child(3){ animation-delay:.16s; }
.hero-copy > *:nth-child(4){ animation-delay:.24s; }
.hero-copy > *:nth-child(5){ animation-delay:.32s; }
@keyframes rise{ from{ opacity:0; transform:translateY(18px); } to{ opacity:1; transform:none; } }

/* ---------------- Hero 聊天演示 ---------------- */
.hero-demo{ position:relative; display:flex; justify-content:center; animation:rise 1s var(--ease) .2s both; }

.phone{
  width:100%; max-width:340px;
  border:1px solid var(--line-strong); border-radius:28px;
  background:linear-gradient(180deg,rgba(18,26,48,.96),rgba(9,14,28,.96));
  box-shadow:var(--shadow), 0 0 0 8px rgba(255,255,255,.02);
  overflow:hidden;
}
.phone-top{
  display:flex; align-items:center; gap:8px;
  padding:15px 18px; border-bottom:1px solid var(--line);
  font-size:13.5px; color:var(--text-2); background:rgba(255,255,255,.03);
}
.phone-top .dot{
  width:8px; height:8px; border-radius:50%; background:var(--brand);
  box-shadow:0 0 0 4px rgba(47,224,200,.16);
  animation:pulse 2s infinite;
}
@keyframes pulse{ 50%{ box-shadow:0 0 0 8px rgba(47,224,200,0); } }

.phone-body{
  min-height:322px; padding:18px 16px;
  display:flex; flex-direction:column; gap:10px;
  font-size:13.5px;
}
.phone-input{
  display:flex; align-items:center; justify-content:space-between;
  padding:13px 18px; border-top:1px solid var(--line);
  color:var(--text-3); font-size:13px; background:rgba(255,255,255,.02);
}

.msg{
  max-width:82%; padding:10px 13px; border-radius:14px;
  line-height:1.65; animation:pop .45s var(--ease) both;
}
.msg.bot{ align-self:flex-start; background:var(--surface-2); border:1px solid var(--line); border-bottom-left-radius:5px; }
.msg.me{
  align-self:flex-end; border-bottom-right-radius:5px;
  background:linear-gradient(120deg,rgba(47,224,200,.22),rgba(77,141,255,.28));
  border:1px solid rgba(77,141,255,.35);
}
.msg b{ display:block; font-size:11.5px; color:var(--brand); margin-bottom:3px; font-weight:600; }
.msg.typing{ display:flex; gap:5px; align-items:center; padding:14px 15px; }
.msg.typing i{
  width:6px; height:6px; border-radius:50%; background:var(--text-3);
  animation:blink 1.2s infinite;
}
.msg.typing i:nth-child(2){ animation-delay:.2s; }
.msg.typing i:nth-child(3){ animation-delay:.4s; }
@keyframes blink{ 0%,60%,100%{ opacity:.25; transform:translateY(0); } 30%{ opacity:1; transform:translateY(-3px); } }
@keyframes pop{ from{ opacity:0; transform:translateY(10px) scale(.97); } to{ opacity:1; transform:none; } }

.float-card{
  position:absolute; padding:12px 16px;
  border:1px solid var(--line-strong); border-radius:var(--r);
  background:rgba(11,17,34,.86); backdrop-filter:blur(10px);
  box-shadow:var(--shadow);
  animation:bob 6s var(--ease) infinite alternate;
}
.float-card strong{ display:block; font-size:20px; background:var(--grad);
  -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; }
.float-card span{ font-size:12px; color:var(--text-3); }
.fc-1{ top:14%; left:-4px; }
.fc-2{ bottom:12%; right:-4px; animation-delay:-3s; }
@keyframes bob{ from{ transform:translateY(0); } to{ transform:translateY(-14px); } }

/* ---------------- Stats ---------------- */
.stats{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  margin-top:72px; padding:0;
  border:1px solid var(--line); border-radius:var(--r-lg);
  background:var(--line); overflow:hidden;
}
.stats li{
  padding:26px 20px; text-align:center;
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.015));
}
.stats b{
  display:block; font-size:clamp(26px,3vw,34px); font-weight:700; letter-spacing:-.02em;
  background:var(--grad); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent;
}
.stats span{ font-size:13.5px; color:var(--text-3); }

/* ---------------- Sections ---------------- */
.section{ padding:104px 0; }
.section-alt{
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(77,141,255,.09), transparent 70%),
    var(--bg-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}

.sec-head{ max-width:660px; margin-bottom:52px; }
.sec-head h2{ font-size:clamp(26px,3.2vw,38px); letter-spacing:-.025em; }
.sec-sub{ margin-top:14px; color:var(--text-2); font-size:16px; }

/* reveal on scroll */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in{ opacity:1; transform:none; }

/* ---------------- Cards（业务能力） ---------------- */
.cards{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }

.card{
  position:relative; padding:28px 26px 26px;
  border:1px solid var(--line); border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.017));
  transition:transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
  overflow:hidden;
}
.card::before{
  content:""; position:absolute; inset:0 0 auto; height:1px;
  background:var(--grad); opacity:0; transition:opacity .3s var(--ease);
}
.card:hover{ transform:translateY(-5px); border-color:var(--line-strong); box-shadow:var(--shadow); }
.card:hover::before{ opacity:1; }

.card-ico{
  display:inline-flex; align-items:center; justify-content:center;
  width:46px; height:46px; margin-bottom:18px;
  border:1px solid var(--line-strong); border-radius:14px;
  background:linear-gradient(140deg,rgba(47,224,200,.16),rgba(160,107,255,.16));
  color:var(--brand);
}
.card-ico .ic{ width:22px; height:22px; }
.card h3{ font-size:18.5px; }
.card p{ margin-top:11px; color:var(--text-2); font-size:14.8px; }

.mini{ display:flex; flex-wrap:wrap; gap:7px; margin-top:18px; }
.mini li{
  padding:4px 11px; border:1px solid var(--line); border-radius:999px;
  font-size:12.5px; color:var(--text-3); background:var(--surface);
}

/* ---------------- Channels ---------------- */
.channels{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.channel{
  padding:26px 24px; border:1px solid var(--line); border-radius:var(--r-lg);
  background:rgba(255,255,255,.035);
  transition:transform .3s var(--ease), border-color .3s var(--ease);
}
.channel:hover{ transform:translateY(-4px); border-color:var(--line-strong); }
.channel h3{ font-size:17px; }
.channel p{ margin:11px 0 18px; color:var(--text-2); font-size:14.5px; }
.badge{
  display:inline-block; padding:4px 11px; border-radius:999px;
  border:1px solid var(--line-strong); background:var(--surface);
  font-size:12px; color:var(--text-3);
}
.badge-ok{ color:#04121b; background:var(--brand); border-color:transparent; font-weight:600; }

/* ---------------- Tabs（行业案例） ---------------- */
.tabs{
  border:1px solid var(--line); border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.014));
  overflow:hidden;
}
.tablist{
  display:flex; gap:6px; padding:14px 16px;
  border-bottom:1px solid var(--line);
  overflow-x:auto; scrollbar-width:none;
}
.tablist::-webkit-scrollbar{ display:none; }
.tab{
  padding:10px 22px; border:1px solid transparent; border-radius:999px;
  background:transparent; color:var(--text-2);
  font-size:15px; font-weight:500; cursor:pointer; white-space:nowrap;
  transition:color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}
.tab:hover{ color:var(--text); background:var(--surface-2); }
.tab.is-active{
  color:#04121b; font-weight:650;
  background:var(--grad); border-color:transparent;
  box-shadow:0 8px 24px -12px rgba(77,141,255,.8);
}

.panel{ padding:40px; animation:fade .45s var(--ease) both; }
.panel[hidden]{ display:none; }
@keyframes fade{ from{ opacity:0; transform:translateY(12px); } to{ opacity:1; transform:none; } }

.panel-grid{ display:grid; grid-template-columns:1.15fr .85fr; gap:48px; }
.panel-copy h3{ font-size:clamp(21px,2.4vw,27px); letter-spacing:-.02em; }
.panel-lead{ margin-top:14px; color:var(--text-2); font-size:15.5px; }

.flow{ margin-top:30px; display:flex; flex-direction:column; gap:2px; counter-reset:f; }
.flow li{
  position:relative; padding:14px 0 14px 46px;
  border-top:1px solid var(--line);
  font-size:14.8px; color:var(--text-2);
}
.flow li:last-child{ border-bottom:1px solid var(--line); }
.flow li::before{
  counter-increment:f; content:counter(f,decimal-leading-zero);
  position:absolute; left:0; top:15px;
  font-size:12px; font-weight:700; letter-spacing:.04em;
  color:var(--brand); font-variant-numeric:tabular-nums;
}
.flow b{ display:block; color:var(--text); font-weight:600; font-size:15.5px; margin-bottom:2px; }

.note{
  display:flex; gap:9px; margin-top:24px; padding:14px 16px;
  border:1px solid rgba(47,224,200,.28); border-radius:var(--r-sm);
  background:rgba(47,224,200,.07);
  font-size:13.8px; color:var(--text-2);
}
.note .ic{ color:var(--brand); margin-top:3px; }

.panel-side{ display:flex; flex-direction:column; gap:20px; }

.kpis{ display:grid; grid-template-columns:repeat(3,1fr); gap:12px; }
.kpis div{
  padding:16px 12px; text-align:center;
  border:1px solid var(--line); border-radius:var(--r);
  background:var(--surface);
}
.kpis b{
  display:block; font-size:20px; font-weight:700;
  background:var(--grad); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent;
}
.kpis span{ font-size:12px; color:var(--text-3); line-height:1.5; }

.chat-mock{
  padding:18px; border:1px solid var(--line); border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(12,19,38,.9),rgba(8,12,26,.9));
  display:flex; flex-direction:column; gap:10px;
}
.cm-title{
  padding-bottom:12px; margin-bottom:2px; border-bottom:1px solid var(--line);
  font-size:12.5px; color:var(--text-3); letter-spacing:.04em;
}
.bubble{
  max-width:88%; padding:11px 14px; border-radius:14px;
  font-size:13.6px; line-height:1.65;
}
.bubble.bot{ align-self:flex-start; background:var(--surface-2); border:1px solid var(--line); border-bottom-left-radius:5px; }
.bubble.me{
  align-self:flex-end; border-bottom-right-radius:5px;
  background:linear-gradient(120deg,rgba(47,224,200,.2),rgba(77,141,255,.26));
  border:1px solid rgba(77,141,255,.32);
}
.bubble b{ display:block; font-size:11.5px; color:var(--brand); margin-bottom:3px; }
.bubble em{ display:block; margin-top:6px; font-style:normal; font-size:11.5px; color:var(--text-3); }

/* ---------------- Compliance ---------------- */
.compliance{ display:grid; grid-template-columns:repeat(2,1fr); gap:20px; }
.comp{
  padding:28px 26px; border:1px solid var(--line); border-radius:var(--r-lg);
  background:rgba(255,255,255,.035);
  border-left:2px solid transparent;
  transition:border-color .3s var(--ease), transform .3s var(--ease);
}
.comp:hover{ transform:translateX(4px); border-left-color:var(--brand); }
.comp h3{ font-size:17.5px; }
.comp p{ margin-top:11px; color:var(--text-2); font-size:14.8px; }

/* ---------------- Steps ---------------- */
.steps{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.steps li{
  position:relative; padding:26px 24px;
  border:1px solid var(--line); border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.014));
  transition:transform .3s var(--ease), border-color .3s var(--ease);
}
.steps li:hover{ transform:translateY(-4px); border-color:var(--line-strong); }
.step-n{
  display:block; margin-bottom:12px;
  font-size:26px; font-weight:700; letter-spacing:-.02em;
  background:var(--grad); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent;
  opacity:.9;
}
.steps h3{ font-size:17px; }
.steps p{ margin-top:9px; color:var(--text-2); font-size:14.5px; }

/* ---------------- CTA ---------------- */
.cta-section{
  position:relative;
  background:
    radial-gradient(ellipse 60% 70% at 20% 30%, rgba(47,224,200,.12), transparent 70%),
    radial-gradient(ellipse 60% 70% at 85% 70%, rgba(160,107,255,.14), transparent 70%),
    var(--bg-2);
  border-top:1px solid var(--line);
}
.cta-inner{ display:grid; grid-template-columns:1fr .82fr; gap:56px; align-items:start; }
.cta-copy h2{ font-size:clamp(25px,3vw,35px); letter-spacing:-.025em; }
.cta-copy p{ margin-top:16px; color:var(--text-2); }
.cta-list{ display:flex; flex-direction:column; gap:11px; margin-top:26px; }
.cta-list li{ display:flex; align-items:center; gap:9px; font-size:14.8px; color:var(--text-2); }
.cta-list .ic{ color:var(--brand); }

.cta-form{
  padding:30px; border:1px solid var(--line-strong); border-radius:var(--r-lg);
  background:rgba(8,13,27,.72); backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
}
.field{ margin-bottom:16px; }
.field label{ display:block; margin-bottom:7px; font-size:13.5px; color:var(--text-2); }
.field input,.field select,.field textarea{
  width:100%; padding:12px 14px;
  border:1px solid var(--line-strong); border-radius:var(--r-sm);
  background:rgba(255,255,255,.045); font-size:15px;
  transition:border-color .2s var(--ease), background .2s var(--ease);
  resize:vertical;
}
.field input::placeholder,.field textarea::placeholder{ color:var(--text-3); }
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none; border-color:var(--brand); background:rgba(255,255,255,.07);
}
.field input:user-invalid{ border-color:#ff6b81; }
.field select{ appearance:none; cursor:pointer;
  background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),
                   linear-gradient(135deg,var(--text-3) 50%,transparent 50%);
  background-position:calc(100% - 19px) 20px, calc(100% - 13px) 20px;
  background-size:6px 6px,6px 6px; background-repeat:no-repeat;
}
.field select option{ background:#0b1122; color:var(--text); }
.form-tip{ margin-top:14px; font-size:12.8px; color:var(--text-3); text-align:center; }
.form-tip.is-ok{ color:var(--brand); }
.form-tip.is-err{ color:#ff8b9b; }

/* ---------------- Footer ---------------- */
.site-footer{ border-top:1px solid var(--line); background:var(--bg); padding-top:56px; }
.footer-inner{ display:grid; grid-template-columns:1.2fr 1.8fr; gap:44px; padding-bottom:40px; }
.footer-brand p{ margin-top:14px; max-width:26em; color:var(--text-3); font-size:14px; }
.footer-nav{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.footer-nav h4{ margin-bottom:14px; font-size:13.5px; color:var(--text); letter-spacing:.04em; }
.footer-nav a,.footer-nav span{
  display:block; margin-bottom:9px; font-size:14px; color:var(--text-3);
  transition:color .2s var(--ease);
}
.footer-nav a:hover{ color:var(--brand); }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center; gap:16px;
  padding:20px 24px; border-top:1px solid var(--line);
  font-size:13px; color:var(--text-3); flex-wrap:wrap;
}
.to-top:hover{ color:var(--brand); }

/* ---------------- Responsive ---------------- */
@media (max-width:1024px){
  .cards,.steps{ grid-template-columns:repeat(2,1fr); }
  .channels{ grid-template-columns:repeat(2,1fr); }
  .hero-inner{ grid-template-columns:1fr; gap:52px; }
  .hero-demo{ order:2; }
  .panel-grid{ grid-template-columns:1fr; gap:34px; }
  .cta-inner{ grid-template-columns:1fr; gap:36px; }
  .footer-inner{ grid-template-columns:1fr; }
}

@media (max-width:860px){
  .nav{
    position:absolute; top:68px; left:0; right:0;
    flex-direction:column; gap:2px; padding:14px 20px 20px;
    background:rgba(7,11,23,.98); border-bottom:1px solid var(--line);
    backdrop-filter:blur(16px);
    transform:translateY(-8px); opacity:0; pointer-events:none;
    transition:opacity .25s var(--ease), transform .25s var(--ease);
  }
  .nav.is-open{ transform:none; opacity:1; pointer-events:auto; }
  .nav a{ padding:12px 14px; border-radius:var(--r-sm); font-size:16px; }
  .nav a.is-active::after{ display:none; }
  .nav-toggle{ display:block; }
  .header-cta{ display:none; }
  .section{ padding:76px 0; }
  .stats{ grid-template-columns:repeat(2,1fr); margin-top:56px; }
  .panel{ padding:26px 22px; }
  .compliance{ grid-template-columns:1fr; }
  .float-card{ display:none; }
}

@media (max-width:600px){
  .wrap{ padding:0 18px; }
  .cards,.steps,.channels{ grid-template-columns:1fr; }
  .hero{ padding:56px 0 24px; }
  .cta-form{ padding:22px; }
  .kpis{ grid-template-columns:1fr; }
  .kpis div{ display:flex; align-items:baseline; gap:10px; text-align:left; }
  .footer-nav{ grid-template-columns:repeat(2,1fr); }
}

@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; }
  .reveal{ opacity:1; transform:none; }
}