/* ===== Gateway China Edu — stylesheet ===== */

:root{
  --navy:#0B2545;
  --slate:#13293D;
  --gold:#D4AF37;
  --bg:#F8F9FA;
  --white:#FFFFFF;
  --text:#13293D;
  --muted:#5C6B73;
  --border:#E3E7EB;
  --radius:10px;
  --shadow:0 2px 14px rgba(11,37,69,0.08);
  --font-head:'Montserrat',Georgia,serif;
  --font-body:'Inter',system-ui,-apple-system,sans-serif;
  --maxw:1200px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:var(--font-head);margin:0;color:var(--navy)}
p{margin:0}
img{max-width:100%;display:block}
a{color:inherit}
button{font-family:var(--font-body)}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

.skip-link{
  position:absolute;left:-999px;top:0;background:var(--navy);color:#fff;
  padding:12px 20px;z-index:1000;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0}

a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{
  outline:2px solid var(--gold);
  outline-offset:2px;
}

.eyebrow{
  color:var(--gold);font-weight:700;letter-spacing:0.06em;font-size:12.5px;
  text-transform:uppercase;font-family:var(--font-head);
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:6px;border:none;font-size:15px;font-weight:700;
  cursor:pointer;text-decoration:none;font-family:var(--font-body);
  transition:transform .15s ease, box-shadow .15s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn-gold{background:var(--gold);color:var(--navy)}
.btn-gold:hover{box-shadow:0 6px 18px rgba(212,175,55,0.35)}
.btn-outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,0.7)}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,0.08)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{box-shadow:0 6px 18px rgba(11,37,69,0.35)}
.btn-small{padding:10px 20px;font-size:14px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--border);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;height:76px;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand img{width:40px;height:40px;border-radius:50%}
.brand span{font-family:var(--font-head);font-weight:800;font-size:18px;color:var(--navy)}

.nav-links{display:flex;align-items:center;gap:30px;list-style:none;margin:0;padding:0}
.nav-links a{font-size:15px;font-weight:500;text-decoration:none;color:var(--text)}
.nav-links a:hover{color:var(--gold)}

.nav-cta{display:flex;align-items:center;gap:18px}

.nav-toggle{
  display:none;background:none;border:none;cursor:pointer;padding:8px;
}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--navy);margin:5px 0;transition:.2s}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(135deg,#0B2545 0%,#13293D 100%);
  color:#fff;padding:96px 0 88px;
}
.hero .wrap{display:grid;grid-template-columns:1.15fr 0.85fr;gap:56px;align-items:center}
.hero h1{color:#fff;font-size:clamp(34px,4.4vw,52px);font-weight:800;line-height:1.14;max-width:640px}
.hero p{color:#d7dde3;font-size:17px;max-width:540px;margin-top:20px}
.hero-actions{display:flex;gap:16px;margin-top:32px;flex-wrap:wrap}
.trust-line{margin-top:26px;font-size:13px;color:#9fb0c3}
.hero-badge{
  justify-self:end;width:260px;
}
.hero-badge img{width:100%;height:auto;border-radius:20px}

/* ---------- Stats / Why China ---------- */
.stats{background:#fff;padding:56px 0}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stat-card{
  text-align:center;padding:30px 20px;border:1px solid var(--border);border-radius:var(--radius);
}
.stat-card .num{font-family:var(--font-head);font-weight:800;font-size:26px;color:var(--navy)}
.stat-card .label{margin-top:6px;font-weight:700;color:var(--navy);font-size:14px}
.stat-card .desc{margin-top:6px;font-size:13.5px;color:var(--muted)}

/* ---------- Sections ---------- */
.section{padding:88px 0}
.section h2{font-size:clamp(26px,3vw,32px);margin-top:10px}
.section-foot-note{margin-top:22px;font-size:13px;color:var(--muted)}
.section-alt{background:#fff}

.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:38px}
.card{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.card h3{font-size:19px;margin-bottom:12px}
.card p{font-size:14px;color:var(--muted)}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:38px}
.step-num{
  width:34px;height:34px;border-radius:50%;background:var(--navy);color:var(--gold);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-family:var(--font-head);
  margin-bottom:16px;
}
.step h3{font-size:16px;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--muted)}

.support-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:38px}
.support-card{background:#fff;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.support-icon{width:30px;height:30px;border-radius:8px;background:var(--navy);margin-bottom:14px}
.support-card p{font-size:14px;font-weight:600;color:var(--navy)}

.why-us{background:var(--navy);color:#fff}
.why-us h2{color:#fff}
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:38px}
.why-card{padding:28px;border:1px solid rgba(255,255,255,0.15);border-radius:var(--radius)}
.why-card h3{color:var(--gold);font-size:18px;margin-bottom:10px}
.why-card p{color:#c9d3dc;font-size:14px}

.doc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:32px;max-width:920px}
.doc-item{
  display:flex;align-items:center;gap:12px;background:#fff;padding:15px 18px;border-radius:8px;
  box-shadow:var(--shadow);font-size:14px;
}
.doc-dot{width:8px;height:8px;border-radius:50%;background:var(--gold);flex-shrink:0}
.doc-item.full{grid-column:1/-1}

.faq-list{margin-top:32px;max-width:840px;display:flex;flex-direction:column;gap:14px}
.faq-item{border-bottom:1px solid var(--border);padding-bottom:14px}
.faq-item summary{
  cursor:pointer;font-size:16px;font-weight:700;color:var(--navy);font-family:var(--font-head);
  padding:12px 0;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;color:var(--gold);font-weight:400;flex-shrink:0;transition:transform .2s;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{font-size:14.5px;color:var(--muted);padding-bottom:10px}

/* ---------- Lead form ---------- */
.lead{background:var(--slate);color:#fff}
.lead h2{color:#fff}
.lead>.wrap>p{color:#c9d3dc;margin-top:8px}
.lead-form{
  background:#fff;border-radius:var(--radius);padding:36px;margin-top:32px;
  box-shadow:0 12px 40px rgba(0,0,0,0.25);
}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.field{display:flex;flex-direction:column}
.field.full{grid-column:1/-1}
label{font-size:13px;font-weight:600;color:var(--text);margin-bottom:6px}
input[type=text],input[type=email],input[type=date],input[type=file],select{
  padding:11px 14px;border:1px solid #cbd3da;border-radius:6px;font-size:14px;color:var(--text);
  font-family:var(--font-body);width:100%;background:#fff;
}
input:focus,select:focus{border-color:var(--gold)}
.field-note{font-size:11.5px;color:#8a95a1;margin-top:5px}
.consent{
  grid-column:1/-1;display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);
}
.consent input{width:auto;margin-top:3px}
.lead-form .btn{grid-column:1/-1;justify-self:start;margin-top:6px}

.confirm-panel{
  display:none;background:#fff;border-radius:var(--radius);padding:40px;margin-top:32px;text-align:center;
}
.confirm-panel.show{display:block}
.confirm-panel h3{font-size:20px;margin-bottom:10px}
.confirm-panel p{color:var(--muted);font-size:14.5px}

/* ---------- Final CTA ---------- */
.final-cta{background:var(--navy);color:#fff;text-align:center}
.final-cta h2{color:#fff;font-size:clamp(24px,3vw,30px)}
.final-cta p{color:#c9d3dc;font-size:15px;margin:14px auto 0;max-width:560px}
.final-cta .btn{margin-top:26px}
.contact-line{margin-top:22px;font-size:13.5px;color:#9fb0c3}

/* ---------- Footer ---------- */
.site-footer{background:var(--slate);color:#9fb0c3;padding:48px 0;font-size:13px;line-height:1.7}
.footer-brand{display:flex;align-items:center;gap:14px;margin-bottom:10px}
.footer-brand img{width:52px;height:52px;border-radius:8px}
.footer-brand span{font-family:var(--font-head);font-weight:800;color:#fff;font-size:17px}
.footer-disclaimer{margin-top:14px;max-width:920px}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .hero .wrap{grid-template-columns:1fr}
  .hero-badge{display:none}
  .cards-3,.steps,.why-grid{grid-template-columns:1fr 1fr}
  .support-grid{grid-template-columns:1fr 1fr}
  .stats-grid{grid-template-columns:1fr}
  .doc-grid,.form-grid{grid-template-columns:1fr}
}
@media (max-width:760px){
  .nav-links,.nav-cta .btn-navy{display:none}
  .nav-toggle{display:block}
  .nav-cta{gap:0}
  .site-header.open .nav-links{
    display:flex;flex-direction:column;position:absolute;top:76px;left:0;right:0;background:#fff;
    padding:20px 24px;gap:18px;border-bottom:1px solid var(--border);
  }
  .cards-3,.steps,.why-grid,.support-grid{grid-template-columns:1fr}
  .section{padding:64px 0}
  .lead-form{padding:24px}
}