/* ============ Reset & base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","PingFang SC","Microsoft YaHei",sans-serif;
  color:#0F172A;background:#fff;line-height:1.55;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img,svg{max-width:100%;display:block}
a{color:#0B5FFF;text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.15;margin:0 0 .6em;letter-spacing:-0.01em}
h1{font-size:clamp(2rem,5vw,3.4rem);font-weight:800}
h2{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:700}
h3{font-size:1.125rem;font-weight:700}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}

:root{
  --brand:#0B5FFF;
  --brand-2:#6B5BFF;
  --ink:#0F172A;
  --muted:#5B6B80;
  --bg:#F6F8FC;
  --card:#fff;
  --line:#E6EBF2;
  --ok:#0FB981;
  --warn:#F59E0B;
  --err:#EF4444;
  --radius:14px;
  --shadow:0 10px 30px rgba(12,26,58,.06), 0 2px 6px rgba(12,26,58,.04);
}

.container{max-width:1120px;margin:0 auto;padding:0 20px}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:.75rem 1.1rem;border-radius:10px;border:1px solid transparent;
  font-weight:600;cursor:pointer;transition:transform .08s ease,box-shadow .2s ease,background .2s;
  text-decoration:none;font-size:1rem;
}
.btn-sm{padding:.5rem .85rem;font-size:.9rem}
.btn-lg{padding:.95rem 1.3rem;font-size:1.05rem}
.btn-block{width:100%}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(11,95,255,.28)}
.btn-primary:hover{background:#0A54E6;text-decoration:none}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:#C7D1E0;text-decoration:none}

/* ============ Nav ============ */
.nav{
  position:sticky;top:0;z-index:40;background:rgba(255,255,255,.85);
  backdrop-filter:saturate(1.2) blur(10px);
  border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  padding:.7rem 20px;
}
.nav nav a{color:var(--ink);margin-left:1rem;font-size:.95rem}
.nav nav a:hover{color:var(--brand)}
.nav nav{display:flex;align-items:center}
.brand{display:inline-flex;align-items:center;gap:.55rem;font-weight:800;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand-accent{color:var(--brand)}
.logo-dot{width:14px;height:14px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:inline-block}

.lang-switch{display:inline-flex;align-items:center;gap:6px;margin-right:8px}
.lang-btn{
  border:1px solid var(--line);background:#fff;color:var(--ink);
  border-radius:999px;padding:4px 10px;font-size:.75rem;font-weight:700;cursor:pointer;
}
.lang-btn.active{background:var(--brand);border-color:var(--brand);color:#fff}
.lang-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

@media (max-width:640px){
  .nav nav a:not(.btn){display:none}
  .lang-switch{margin-right:10px}
}

/* ============ Hero ============ */
.hero{
  background:
    radial-gradient(1000px 600px at 80% -10%, #DCE7FF 0%, transparent 60%),
    radial-gradient(800px 500px at -10% 20%, #EDE7FF 0%, transparent 55%),
    linear-gradient(180deg,#fff,#F6F8FC);
  padding:64px 0 56px;
}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
@media (max-width:900px){ .hero-grid{grid-template-columns:1fr;gap:28px} }

.eyebrow{
  display:inline-flex;align-items:center;gap:.5rem;
  background:#fff;border:1px solid var(--line);color:var(--muted);
  padding:.35rem .7rem;border-radius:999px;font-size:.85rem;margin-bottom:1rem;
}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 0 rgba(15,185,129,.6);animation:pulse 1.8s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(15,185,129,.55)}70%{box-shadow:0 0 0 10px rgba(15,185,129,0)}100%{box-shadow:0 0 0 0 rgba(15,185,129,0)}}

.grad{background:linear-gradient(90deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.sub{font-size:1.15rem;color:var(--muted);max-width:560px}
.cta-row{display:flex;flex-wrap:wrap;gap:.8rem;margin:1.3rem 0 1rem}
.trust-row{display:flex;flex-wrap:wrap;gap:1rem;color:var(--muted);font-size:.95rem}

.hero-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);
}
.countdown-label{font-size:.85rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:.4rem}
.countdown{display:grid;grid-template-columns:repeat(4,1fr);gap:.6rem;margin-bottom:1rem}
.countdown > div{background:#F6F8FC;border-radius:10px;padding:.7rem .4rem;text-align:center}
.countdown strong{display:block;font-size:1.6rem;font-weight:800}
.countdown span{font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.stat-row{display:flex;justify-content:space-between;gap:.6rem;margin:.6rem 0 1rem;color:var(--muted)}
.stat-row strong{display:block;color:var(--ink);font-size:1.25rem}
.stat-row span{font-size:.8rem}

/* ============ Sections ============ */
.section{padding:64px 0}
.section-alt{background:var(--bg)}
.lead{color:var(--muted);max-width:720px;font-size:1.08rem;margin-bottom:2rem}

/* Grids */
.grid-3,.grid-4{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:960px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){
  .grid-4,.grid-3{grid-template-columns:1fr}
}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);
}
.card .icon{font-size:1.7rem;margin-bottom:.35rem}
.card p{color:var(--muted);margin:0}

/* Steps */
.steps{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step;
}
.steps li{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.steps p{color:var(--muted);margin:0}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#fff;font-weight:700;margin-bottom:.6rem;
}
.steps-compact{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){ .steps,.steps-compact{grid-template-columns:1fr 1fr} }
@media (max-width:560px){ .steps,.steps-compact{grid-template-columns:1fr} }

/* Banner / perks */
.banner{
  background:linear-gradient(135deg,#0B5FFF,#6B5BFF);color:#fff;border-radius:20px;padding:34px;
  box-shadow:0 20px 40px rgba(11,95,255,.25);
}
.banner h2{color:#fff}
.banner .perk{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:12px;padding:16px;display:flex;gap:.8rem;align-items:flex-start}
.banner .perk p{margin:0;color:#E8EEFF}
.banner .perk-tag{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 .5rem;border-radius:10px;background:#fff;color:var(--brand);font-weight:800}
.banner .btn-primary{background:#fff;color:var(--brand);margin-top:1.2rem}
.banner .btn-primary:hover{background:#F0F4FF}

/* Social proof */
.logos{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:2rem}
.logo-ph{
  flex:1 1 150px;min-height:56px;border:1px dashed #C7D1E0;border-radius:10px;
  display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.9rem;background:#fff;
}
.testimonials .quote{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);margin:0}
.quote blockquote{margin:0 0 .6rem;font-size:1.05rem}
.quote figcaption{color:var(--muted);font-size:.9rem}

/* Form */
.form-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
@media (max-width:860px){ .form-wrap{grid-template-columns:1fr} }
.form{padding:26px}
.trust-list li{margin-bottom:.35rem;color:var(--muted)}
.field{margin-bottom:14px}
.field label{display:block;font-weight:600;margin-bottom:.3rem;font-size:.95rem}
.field input,.field select{
  width:100%;padding:.78rem .9rem;border:1px solid var(--line);border-radius:10px;
  font:inherit;background:#fff;color:var(--ink);transition:border-color .15s,box-shadow .15s;
}
.field input:focus,.field select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(11,95,255,.15)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:460px){ .field-row{grid-template-columns:1fr} }
.field .hint{color:var(--muted);font-size:.82rem}
.field-inline{display:flex;gap:.55rem;align-items:flex-start;margin:6px 0 14px}
.field-inline input{width:auto;margin-top:.25rem}
.field-inline label{font-weight:400;color:var(--muted)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.fineprint{font-size:.8rem;color:var(--muted);margin:.8rem 0 0}
.form-status{margin:.8rem 0 0;font-size:.95rem;min-height:1.2em}
.form-status.ok{color:var(--ok)}
.form-status.err{color:var(--err)}
.field.invalid input,.field.invalid select{border-color:var(--err)}

/* CTA band */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  background:var(--card);border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow);
}
.cta-band h2{margin-bottom:.25rem}
.cta-band-actions{display:flex;gap:.6rem;flex-wrap:wrap}

/* FAQ */
.faq details{
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:14px 18px;margin-bottom:10px;box-shadow:var(--shadow);
}
.faq summary{cursor:pointer;font-weight:600;list-style:none;padding-right:20px;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:0;color:var(--muted);font-weight:700}
.faq details[open] summary::after{content:"–"}
.faq p{color:var(--muted);margin:.6rem 0 0}

/* Footer */
.footer{background:#0B1220;color:#CBD5E1;padding:40px 0 20px}
.footer h4{color:#fff;margin-bottom:.6rem}
.footer .brand{color:#fff}
.footer a{color:#CBD5E1}
.footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px;margin-bottom:20px}
.footer .muted{color:#94A3B8}
.footer .copy{font-size:.85rem;border-top:1px solid #1E293B;padding-top:16px}
@media (max-width:640px){ .footer-grid{grid-template-columns:1fr} }

/* WhatsApp float */
.wa-float{
  position:fixed;right:16px;bottom:16px;z-index:50;
  width:56px;height:56px;border-radius:50%;background:#25D366;color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 20px rgba(37,211,102,.35);
}
.wa-float:hover{text-decoration:none;transform:translateY(-2px)}

/* Utilities */
.muted{color:var(--muted)}
.hidden{display:none!important}

/* Multi-step form */
.form-step{animation:fadeIn .25s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.step-indicator{display:flex;gap:.5rem;margin-bottom:1rem}
.step-dot{width:10px;height:10px;border-radius:50%;background:var(--line);transition:background .2s}
.step-dot.active{background:var(--brand);box-shadow:0 0 0 3px rgba(11,95,255,.2)}
.step-dot.done{background:var(--ok)}
.form-step-title{margin-bottom:.8rem}
.verify-desc{color:var(--muted);margin-bottom:1rem}
.code-input{
  font-size:1.6rem!important;font-weight:700;letter-spacing:.5em;text-align:center;
  font-family:monospace;padding:.9rem!important;
}
.success-check{
  width:56px;height:56px;border-radius:50%;background:var(--ok);color:#fff;
  font-size:1.6rem;font-weight:800;display:flex;align-items:center;justify-content:center;
  margin:0 auto 1rem;
}

@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}