:root{
  --red:#FD2222;
  --blue:#1e2773;
  --black:#1f2024;
  --white:#ffffff;
  --muted:#687083;
  --soft:#f5f7fb;
  --line:#e3e7f0;
  --shadow:0 24px 70px rgba(30,39,115,.14);
  --radius:28px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Bai Jamjuree",system-ui,-apple-system,Segoe UI,sans-serif;
  color:var(--black);
  background:#fff;
  line-height:1.56;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto}
.container{width:min(1160px,calc(100% - 40px));margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{min-height:82px;display:flex;align-items:center;gap:20px}
.brand img{width:170px;display:block;flex:0 0 auto}
.nav{
  margin-left:auto;
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:clamp(12px,1.35vw,22px);
  font-weight:800;
  flex-wrap:nowrap;
  min-width:0;
}
.nav a{
  color:#323645;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  white-space:nowrap;
  word-break:keep-all;
  line-height:1.15;
  flex:0 0 auto;
  writing-mode:horizontal-tb;
  text-orientation:mixed;
}
.nav a:hover{color:var(--red)}
.nav-calendar{cursor:pointer}

.lang-select{
  border:1px solid var(--line);
  border-radius:999px;
  padding:10px 14px;
  min-height:42px;
  font-weight:900;
  background:#fff;
  color:var(--black);
  flex:0 0 auto;
}
.field-error{
  min-height:18px;
  color:#b42318;
  font-weight:800;
  margin-top:6px;
}
input:user-invalid{border-color:#ff8a8a}

.nav-cta{
  background:var(--red);color:#fff!important;
  padding:12px 20px;border-radius:999px;
  box-shadow:0 14px 32px rgba(253,34,34,.22);
  min-width:max-content;
  white-space:nowrap;
}
.menu-toggle{display:none;margin-left:auto;border:1px solid var(--line);background:#fff;border-radius:14px;padding:10px 14px;font-size:1.3rem}
.eyebrow{margin:0 0 10px;color:var(--red);font-weight:900;letter-spacing:.1em;text-transform:uppercase;font-size:.82rem}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(2.4rem,5.2vw,5rem);line-height:.98;letter-spacing:-.055em;margin-bottom:20px}
h2{font-size:clamp(2rem,3.6vw,3.25rem);line-height:1.05;letter-spacing:-.04em;margin-bottom:14px}
h3{font-size:1.15rem;margin-bottom:12px}
.hero{
  padding:86px 0 62px;
  background:
    radial-gradient(circle at 8% 12%, rgba(253,34,34,.14), transparent 30%),
    radial-gradient(circle at 80% 0%, rgba(30,39,115,.16), transparent 32%),
    linear-gradient(135deg,#fff,#f7f8fc);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(340px,.85fr);gap:42px;align-items:center}
.hero-lead{font-size:1.18rem;color:var(--muted);max-width:720px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0 20px}
.hero-note{font-size:.98rem;color:#4b5263}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  border:0;border-radius:999px;padding:14px 22px;
  min-height:52px;cursor:pointer;font-weight:900;
  transition:.2s ease
}
.btn-primary{background:var(--red);color:#fff;box-shadow:0 18px 40px rgba(253,34,34,.25)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-secondary{background:#fff;border:1px solid var(--line);color:var(--black)}
.hero-card{
  background:var(--black);color:#fff;border-radius:34px;padding:28px;
  box-shadow:var(--shadow);position:relative;overflow:hidden
}
.hero-card:after{
  content:"";position:absolute;right:-70px;top:-70px;width:190px;height:190px;border-radius:50%;
  background:rgba(253,34,34,.22)
}
.flow-step{position:relative;z-index:1;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:22px;padding:18px;margin-bottom:14px}
.flow-step:last-child{margin-bottom:0}
.flow-step span{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--red);font-weight:900;margin-bottom:12px}
.flow-step strong{display:block;font-size:1.1rem}
.flow-step small{display:block;color:rgba(255,255,255,.74);font-size:.95rem;margin-top:4px}
.section{padding:76px 0}
.section-head{max-width:800px;margin-bottom:28px}
.section-head p{color:var(--muted);font-size:1.06rem}
.form-section{background:#fff}
.join-form{
  background:#fff;border:1px solid var(--line);border-radius:34px;
  padding:clamp(20px,4vw,36px);
  box-shadow:var(--shadow);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 24px}
label,fieldset{min-width:0}
label span, legend{display:block;font-weight:900;margin-bottom:8px;color:#171a24}
label em{font-style:normal;color:var(--muted);font-weight:700;font-size:.9em}
label strong, legend strong{color:var(--red)}
input,select,textarea{
  width:100%;
  border:1px solid var(--line);
  background:#fff;
  border-radius:18px;
  padding:14px 16px;
  min-height:52px;
  font:inherit;
  color:var(--black);
  outline:none;
}
input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(30,39,115,.08)}
textarea{resize:vertical;min-height:128px}
.wide{grid-column:1/-1}
.checkbox-box{
  border:1px solid var(--line);border-radius:22px;padding:18px 20px;margin:0
}
.checks{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px 16px}
.checks.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.checks label{
  display:flex;align-items:flex-start;gap:10px;font-weight:750;margin:0;line-height:1.35
}
.checks input[type="checkbox"]{width:18px;height:18px;min-height:18px;margin:2px 0 0;flex:0 0 auto}
.other-inline input[type="text"]{min-height:38px;padding:8px 10px;border-radius:12px;margin-left:4px}
.consent{
  display:flex;align-items:flex-start;gap:12px;background:#f8fafc;border:1px solid var(--line);border-radius:20px;padding:16px
}
.consent input{width:20px;height:20px;min-height:20px;margin-top:2px;flex:0 0 auto}
.consent span{margin:0;font-weight:750;color:#373d4d}
small,.small-note{display:block;color:var(--muted);font-size:.9rem;margin-top:8px}
.form-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:26px}
.form-status{display:none;margin-top:18px;border-radius:18px;padding:16px 18px;font-weight:800}
.form-status.success{display:block;background:#e8f8ef;border:1px solid #9ddbb8;color:#126b3f}
.form-status.error{display:block;background:#ffecec;border:1px solid #ffaaaa;color:#9f1d1d}
.faq-section{background:var(--soft)}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
details{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 14px 40px rgba(30,39,115,.06)}
summary{cursor:pointer;font-weight:900;color:var(--blue)}
details p{margin:12px 0 0;color:var(--muted)}
.site-footer{background:#10131c;color:#fff;padding:56px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:34px}
.footer-logo{width:170px;margin-bottom:16px}
.site-footer p{color:rgba(255,255,255,.72)}
.site-footer a{display:block;color:rgba(255,255,255,.82);margin:8px 0}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:18px;color:rgba(255,255,255,.56);font-size:.9rem}


.toast{
  position:fixed;
  top:98px;
  right:24px;
  z-index:1000;
  background:var(--black);
  color:#fff;
  border-radius:999px;
  padding:12px 18px;
  font-weight:900;
  box-shadow:0 18px 45px rgba(31,32,36,.2);
  transform:translateY(-8px);
  opacity:0;
  pointer-events:none;
  transition:opacity .18s ease, transform .18s ease;
}
.toast.show{opacity:1;transform:translateY(0)}

@media (max-width: 900px){
  .header-inner{min-height:72px}
  .brand img{width:136px}
  .menu-toggle{display:inline-flex}
  .nav{
    display:none;position:absolute;left:20px;right:20px;top:76px;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border:1px solid var(--line);border-radius:22px;padding:12px;
    box-shadow:var(--shadow)
  }
  .nav.open{display:flex}
  .nav a{
    padding:13px 14px;
    border-radius:14px;
    justify-content:flex-start;
    width:auto;
  }
  .toast{top:auto;right:20px;left:20px;bottom:22px;text-align:center;border-radius:18px}
  .nav-cta{text-align:center;margin-top:8px}
  .lang-select{width:100%;border-radius:14px;margin-top:8px}
  .hero{padding:58px 0 44px}
  .hero-grid{grid-template-columns:1fr}
  .hero-card{padding:22px}
  .section{padding:54px 0}
  .form-grid{grid-template-columns:1fr;gap:18px}
  .checks,.checks.cols-2{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .hero-actions{flex-direction:column}
}
@media (max-width: 520px){
  .container{width:min(100% - 28px,1160px)}
  h1{font-size:2.35rem}
  h2{font-size:2rem}
  .join-form{border-radius:24px}
  input,select,textarea{border-radius:16px}
}


/* V6 hotfix: desktop header stability + horizontal CJK menu text */
@media (min-width: 901px) {
  .site-header .container {
    width: min(1320px, calc(100% - 40px));
  }

  .header-inner {
    gap: 18px;
  }

  .brand {
    flex: 0 0 auto;
  }

  .brand img {
    width: 150px;
  }

  .nav {
    flex: 1 1 auto;
    min-width: 0;
    max-width: calc(100% - 168px);
    gap: clamp(10px, .9vw, 18px);
    justify-content: flex-end;
    overflow: visible;
  }

  .nav a {
    white-space: nowrap !important;
    word-break: keep-all !important;
    overflow-wrap: normal !important;
    writing-mode: horizontal-tb !important;
    text-orientation: mixed !important;
    min-width: max-content;
    flex: 0 0 auto;
  }

  .nav .lang-select {
    width: auto !important;
    min-width: 82px;
    max-width: 108px;
    flex: 0 0 auto;
    padding: 10px 14px;
  }

  .nav-cta {
    padding: 12px 20px;
    min-width: max-content;
  }
}

@media (min-width: 901px) and (max-width: 1160px) {
  .site-header .container {
    width: min(100% - 28px, 1160px);
  }

  .brand img {
    width: 128px;
  }

  .nav {
    max-width: calc(100% - 144px);
    gap: 8px;
    font-size: .92rem;
  }

  .nav-cta {
    padding: 10px 14px;
  }

  .nav .lang-select {
    min-width: 72px;
    max-width: 90px;
    padding: 8px 10px;
  }
}

@media (max-width: 900px) {
  .nav .lang-select {
    width: 100% !important;
    max-width: none;
  }
}