:root{
  /* Brand (extracted from logo) */
  --brand-red:#aa0e13;
  --brand-red-2:#9c0a0e;
  --brand-orange:#f79e3a;
  --brand-orange-2:#d9652d;

  /* Neutrals */
  --bg0:#07080d;
  --bg1:#0b0d16;
  --text:#f6f7fb;
  --muted:rgba(246,247,251,.72);
  --muted2:rgba(246,247,251,.56);
  --border:rgba(255,255,255,.14);

  /* Glass */
  --glass: rgba(255,255,255,.085);
  --glass-2: rgba(255,255,255,.06);
  --shadow: 0 28px 90px rgba(0,0,0,.55);
  --radius: 22px;

  --container: 1160px;
}

*{box-sizing:border-box}
html,body{height:100%}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC",
    "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  color:var(--text);
  
  overflow-x:hidden;
}

img{max-width:100%; height:auto; display:block}
a{color:inherit; text-decoration:none}

.container{
  width:min(var(--container), calc(100% - 48px));
  margin-inline:auto;
}
.sr-only{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden;
  clip:rect(0,0,0,0); white-space:nowrap; border:0;
}

/* Ambient background */
.bg{
  position:fixed; inset:0; z-index:-1; pointer-events:none; overflow:hidden;
}
.orb{
  position:absolute;
  width:560px; height:560px; border-radius:50%;
  filter: blur(46px);
  opacity:.95;
}
.orb.a{left:-210px; top:-220px;
  background:radial-gradient(circle at 30% 30%, rgba(170,14,19,.95), rgba(170,14,19,0) 62%);
}
.orb.b{right:-220px; top:-180px;
  background:radial-gradient(circle at 30% 30%, rgba(247,158,58,.85), rgba(247,158,58,0) 62%);
}
.orb.c{right:18%; bottom:-320px;
  background:radial-gradient(circle at 30% 30%, rgba(217,101,45,.62), rgba(217,101,45,0) 62%);
}
.grid{
  position:absolute; inset:-2px;
  background:
    linear-gradient(to right, rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(900px 680px at 50% 28%, rgba(0,0,0,.75), transparent 68%);
  opacity:.34;
}

/* Glass primitives */
.glass{
  border:1px solid rgba(255,255,255,.14);
  background: linear-gradient(180deg, var(--glass), var(--glass-2));
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}
.card{
  border-radius: var(--radius);
  overflow:hidden;
}

/* Top bar */
.top{
  position:sticky;
  top:0;
  z-index:50;
  padding:18px 0 8px;
  background: linear-gradient(180deg, rgba(7,8,13,.85), rgba(7,8,13,.0));
  backdrop-filter: blur(10px);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:12px 14px;
  border-radius:999px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  min-width: 220px;
}
.brand img{height:30px; width:auto}
.brand__text{display:flex; flex-direction:column; line-height:1.05}
.brand__en{font-size:12px; font-weight:800; letter-spacing:.06em; color: rgba(246,247,251,.92)}
.brand__zh{font-size:12px; color: var(--muted)}
.nav__right{display:flex; align-items:center; gap:10px}
.nav__menu{
  display:flex; align-items:center; gap:14px;
}
.nav__link{
  font-size:13px;
  color:var(--muted);
  padding:8px 10px;
  border-radius:999px;
  transition: background .2s ease, color .2s ease, transform .15s ease;
}
.nav__link.is-active{
  color:var(--text);
  background: rgba(255,255,255,.10);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.14);
}
.nav__link:hover{
  color:var(--text);
  background: rgba(255,255,255,.08);
}
.chip{
  display:inline-flex; align-items:center; justify-content:center;
  gap:8px;
  height:40px; padding:0 12px;
  border-radius: 999px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  color: rgba(246,247,251,.84);
  font-weight:650;
  font-size: 13px;
  transition: transform .15s ease, background .2s ease, border-color .2s ease;
}
.chip:hover{transform: translateY(-1px); border-color: rgba(255,255,255,.18)}
.chip:active{transform: translateY(0)}
.lang{min-width: 84px}

.nav__toggle{
  display:none;
  width:42px; height:42px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
}
.hamburger{
  display:block; width:18px; height:2px; margin:0 auto;
  background: rgba(255,255,255,.88);
  position:relative;
}
.hamburger::before,.hamburger::after{
  content:"";
  position:absolute; left:0; width:18px; height:2px;
  background: rgba(255,255,255,.88);
}
.hamburger::before{top:-6px}
.hamburger::after{top:6px}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:46px;
  padding:0 16px;
  border-radius: 14px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  color:var(--text);
  font-weight:700;
  font-size: 14px;
  transition: transform .15s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.btn:hover{transform: translateY(-1px); border-color: rgba(255,255,255,.18); box-shadow: 0 18px 50px rgba(0,0,0,.40)}
.btn:active{transform: translateY(0)}
.btn--primary{
  border-color: rgba(247,158,58,.35);
  background:
    radial-gradient(120% 120% at 0% 0%, rgba(255,255,255,.35), transparent 55%),
    linear-gradient(135deg, rgba(170,14,19,.96), rgba(247,158,58,.82));
  box-shadow: 0 24px 90px rgba(170,14,19,.18), 0 24px 90px rgba(247,158,58,.12);
}
.btn--ghost{
  background: rgba(255,255,255,.06);
}
.btn--sm{height:40px; padding:0 14px; border-radius: 12px; font-size: 13px}
.icon{opacity:.9}

/* Page */
.main{padding: 18px 0 52px}
.section{
  padding: 58px 0;
}
.section__head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  margin-bottom: 18px;
}
.kicker{
  display:inline-flex; align-items:center; gap:10px;
  padding:8px 12px;
  border-radius: 999px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  color: var(--muted);
  font-size: 13px;
}
.kicker .dot{
  width:10px; height:10px; border-radius:50%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.95), rgba(255,255,255,0) 55%),
              linear-gradient(135deg, rgba(170,14,19,.95), rgba(247,158,58,.90));
  box-shadow: 0 0 0 4px rgba(247,158,58,.10);
}
.h2{
  margin: 10px 0 0;
  font-size: clamp(26px, 2.6vw, 34px);
  letter-spacing: -0.02em;
}
.lead{
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.75;
  max-width: 72ch;
  font-size: 15.5px;
}

/* Hero */
.hero{
  padding: 18px 0 40px;
  display:grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 34px;
  align-items:center;
}
.hero__title{
  margin: 14px 0 12px;
  font-size: clamp(40px, 4.2vw, 58px);
  line-height: 1.05;
  letter-spacing: -0.03em;
}
.grad{
  background: linear-gradient(90deg, var(--brand-red), var(--brand-orange));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero__desc{
  margin:0;
  color: var(--muted);
  font-size: 15.8px;
  line-height: 1.75;
  max-width: 64ch;
}
.hero__actions{display:flex; gap:12px; flex-wrap:wrap; margin-top: 20px}
.hero__stats{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}
.stat{
  padding: 14px 14px 12px;
  border-radius: 18px;
}
.stat .label{font-size:12px; color: var(--muted2)}
.stat .value{margin-top:8px; font-size: 18px; font-weight: 800}

.hero__media{
  position:relative;
  min-height: 520px;
}
.hero__media .frame{
  position:relative;
  border-radius: var(--radius);
  overflow:hidden;
  height: 520px;
}
.hero__media .frame img{
  width:100%; height:100%;
  object-fit:cover;
  transform: scale(1.03);
  filter: saturate(1.06) contrast(1.02);
}
.hero__media .frame::after{
  content:"";
  position:absolute; inset:0;
  background:
    radial-gradient(1200px 520px at 20% 0%, rgba(170,14,19,.26), transparent 55%),
    linear-gradient(180deg, rgba(0,0,0,.15), rgba(0,0,0,.62));
}
.hero__media .overlay{
  position:absolute;
  inset: 14px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  gap:10px;
  pointer-events:none;
}
.hero__media .overlay .badge2{
  display:inline-flex; align-items:center; gap:10px;
  width: fit-content;
  padding: 10px 12px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(12px);
  box-shadow: 0 18px 60px rgba(0,0,0,.40);
}
.badge2 strong{font-size: 13px}
.badge2 span{font-size: 12px; color: var(--muted)}
.badge2 .spark{
  width: 10px; height: 10px; border-radius: 50%;
  background: linear-gradient(135deg, rgba(170,14,19,.95), rgba(247,158,58,.95));
  box-shadow: 0 0 0 4px rgba(170,14,19,.14);
}

/* Layout grids */
.grid2{display:grid; grid-template-columns: 1fr 1fr; gap: 16px}
.grid3{display:grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px}
.grid4{display:grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px}

.panel{
  padding: 18px;
  border-radius: var(--radius);
}
.panel h3{
  margin: 0 0 10px;
  font-size: 16px;
  letter-spacing: -0.01em;
}
.panel p{
  margin:0;
  color: var(--muted);
  line-height: 1.75;
  font-size: 14px;
}

.pill{
  display:inline-flex; align-items:center;
  gap:10px;
  padding: 8px 12px;
  border-radius: 999px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.20);
  color: rgba(246,247,251,.82);
  font-size: 12.5px;
}

.list{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top: 12px;
}
.list .tag{
  display:inline-flex; align-items:center; justify-content:center;
  gap:8px;
  padding: 10px 12px;
  border-radius: 14px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  color: rgba(246,247,251,.86);
  font-size: 13px;
  font-weight: 650;
}
.tag .mini{
  width:10px; height:10px; border-radius: 50%;
  background: linear-gradient(135deg, rgba(170,14,19,.95), rgba(247,158,58,.92));
}
.tag__logo{
  width:100px; height:100px;
  border-radius: 6px;
  object-fit: cover;
  box-shadow: 0 10px 22px rgba(0,0,0,.22);
}

/* Program cards */
.program{
  padding: 18px;
}
.program .top{
  position:static;
  padding:0;
  background:none;
  backdrop-filter:none;
}
.program .name{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top: 10px;
}
.program h3{margin:0; font-size: 16px}
.program .meta{
  font-size: 12px;
  color: var(--muted2);
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
  padding: 6px 10px;
  border-radius: 999px;
}
.program ul{
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
  font-size: 14px;
}

/* News cards */
.news{
  padding: 18px;
}
.news .thumb{
  height: 160px;
  border-radius: 16px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.10);
}
@supports (aspect-ratio: 16 / 9){
  .news .thumb{
    aspect-ratio: 16 / 9;
    height: auto;
  }
}
.news .thumb img{width:100%; height:100%; object-fit:cover}
.news h3{margin: 12px 0 8px; font-size: 16px}
.news p{margin:0; color: var(--muted); line-height: 1.7; font-size: 14px}
.news .date{margin-top: 10px; font-size: 12px; color: var(--muted2)}

/* Registration preview */
.doc{
  display:grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 16px;
  align-items:stretch;
}
.doc .shot{
  border-radius: var(--radius);
  overflow:hidden;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.25);
}
.doc .shot img{width:100%; height:100%; object-fit:cover}
.doc .content{padding:18px}
.doc .content h3{margin:0 0 10px; font-size: 16px}
.doc .content p{margin:0; color: var(--muted); line-height: 1.75}
.doc .content .actions{display:flex; gap:10px; flex-wrap:wrap; margin-top: 14px}

/* Contact */
.form{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.field{display:flex; flex-direction:column; gap:8px}
.field label{font-size: 12px; color: var(--muted2)}
.field input,.field textarea{
  width:100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.18);
  color: var(--text);
  outline:none;
}
.field input:focus,.field textarea:focus{border-color: rgba(247,158,58,.35); box-shadow: 0 0 0 4px rgba(247,158,58,.12)}
.field textarea{min-height: 120px; resize: vertical; grid-column: 1 / -1}
.form .actions{grid-column: 1 / -1; display:flex; gap:12px; flex-wrap:wrap; margin-top: 6px}

/* Footer */
.footer{
  padding: 26px 0 44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
  flex-wrap:wrap;
  color: var(--muted2);
  font-size: 13px;
}
.footer a{
  color: rgba(246,247,251,.82);
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);
}
.footer a:hover{background: rgba(255,255,255,.07)}

/* Modal */
.modal{
  position:fixed;
  inset:0;
  display:none;
  align-items:center;
  justify-content:center;
  padding: 22px;
  background: rgba(0,0,0,.55);
  z-index: 80;
}
.modal.is-open{display:flex}
.modal__panel{
  width: min(720px, 100%);
  border-radius: 24px;
  padding: 18px;
}
.modal__head{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  padding: 6px 6px 12px;
}
.modal__head h3{margin:0; font-size: 16px}
.modal__close{
  width:42px; height:42px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  color: var(--text);
  cursor:pointer;
}
.modal__body{padding: 4px 6px 10px}
.modal__body p{margin:0; color: var(--muted); line-height: 1.75}
.modal__grid{margin-top: 12px; display:grid; grid-template-columns: 1fr 1fr; gap: 12px}
.box{
  padding: 14px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.20);
}
.box .t{font-weight: 800}
.box .d{margin-top: 8px; color: var(--muted); font-size: 13px; line-height: 1.65}

/* Toast */
.toast{
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 90;
  display:none;
  padding: 12px 14px;
  border-radius: 16px;
}
.toast.is-show{display:block}
.toast p{margin:0; color: rgba(246,247,251,.88); font-size: 13px}

/* Responsive */
@media (max-width: 980px){
  .hero{grid-template-columns: 1fr; padding-top: 6px}
  .hero__media{min-height: 420px}
  .hero__media .frame{height: 420px}
  .grid4{grid-template-columns: repeat(2, minmax(0,1fr))}
  .doc{grid-template-columns: 1fr}
}
@media (max-width: 820px){
  .nav__toggle{display:inline-flex; align-items:center; justify-content:center}
  .nav__menu{
    position:absolute;
    inset: 78px 14px auto 14px;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:10px;
    padding: 14px;
    border-radius: 18px;
    background: rgba(47, 32, 4, 0.917);
    border: 1px solid rgba(255,255,255,.14);
    box-shadow: 0 28px 90px rgba(0,0,0,.55);
    backdrop-filter: none;
  }
  .nav__menu.is-open{display:flex}
  .nav{position:relative}
}
@media (max-width: 720px){
  .container{width:min(var(--container), calc(100% - 34px))}
  .hero__stats{grid-template-columns: 1fr; gap: 10px}
  .grid3{grid-template-columns: 1fr}
  .grid2{grid-template-columns: 1fr}
  .form{grid-template-columns: 1fr}
  .modal__grid{grid-template-columns: 1fr}
}
@media (prefers-reduced-motion: reduce){
  *{scroll-behavior:auto !important}
  .btn,.chip,.nav__link{transition:none}
}