/* assets/styles.css */
:root{
  --bg0:#070A12;
  --bg1:#0B1022;
  --card:rgba(255,255,255,.06);
  --card2:rgba(255,255,255,.10);
  --stroke:rgba(255,255,255,.14);
  --text:rgba(255,255,255,.92);
  --muted:rgba(255,255,255,.68);
  --muted2:rgba(255,255,255,.52);
  --shadow: 0 20px 80px rgba(0,0,0,.55);
  --shadow2: 0 12px 36px rgba(0,0,0,.45);
  --radius: 22px;
  --radius2: 14px;

  --a: #7C5CFF;
  --b: #17D7FF;
  --c: #00FFA8;
  --d: #FF3D8D;

  --max: 1180px;
  --navH: 76px;
}

*{box-sizing:border-box}
html,body{min-height:100%}
body{
  margin:0;
  color:var(--text);
  background: var(--bg1);
  background-attachment: fixed;
  font-family: ui-sans-serif, system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Noto Sans CJK SC", Segoe UI, Roboto, Arial, sans-serif;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-4;
  background:
    radial-gradient(ellipse 80% 50% at 10% 10%, rgba(124,92,255,.22), transparent 60%),
    radial-gradient(ellipse 60% 50% at 90% 20%, rgba(23,215,255,.16), transparent 60%),
    radial-gradient(ellipse 60% 50% at 30% 90%, rgba(0,255,168,.10), transparent 60%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  pointer-events:none;
}

a{color:inherit; text-decoration:none}
.container{max-width:var(--max); margin:0 auto; padding:0 22px}
.small{font-size:13px; color:var(--muted2)}
.muted{color:var(--muted)}
.kbd{font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono"; font-size:12px; padding:2px 6px; border:1px solid var(--stroke); border-radius:8px; background:rgba(255,255,255,.04)}

#particles{
  position:fixed; inset:0;
  width:100%; height:100%;
  z-index:-2;
  pointer-events:none;
  opacity:.9;
}

.bg-blobs::before,
.bg-blobs::after{
  content:"";
  position:fixed;
  width:680px; height:680px;
  border-radius:999px;
  filter: blur(50px);
  z-index:-3;
  opacity:.55;
  mix-blend-mode: screen;
  animation: floaty 12s ease-in-out infinite;
}
.bg-blobs::before{
  left:-220px; top:120px;
  background: radial-gradient(circle at 30% 30%, rgba(124,92,255,.9), transparent 60%),
              radial-gradient(circle at 70% 60%, rgba(255,61,141,.7), transparent 62%);
}
.bg-blobs::after{
  right:-240px; top:280px;
  background: radial-gradient(circle at 40% 40%, rgba(23,215,255,.85), transparent 62%),
              radial-gradient(circle at 70% 70%, rgba(0,255,168,.6), transparent 60%);
  animation-delay:-4s;
}

@keyframes floaty{
  0%,100%{transform:translate3d(0,0,0) scale(1)}
  50%{transform:translate3d(40px,-30px,0) scale(1.06)}
}

/* Top nav */
.topbar{
  position:sticky;
  top:0;
  z-index:50;
  height:var(--navH);
  backdrop-filter: blur(14px);
  background: linear-gradient(180deg, rgba(8,10,18,.75), rgba(8,10,18,.32));
  border-bottom:1px solid rgba(255,255,255,.08);
}
.topbar .row{
  height:var(--navH);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  flex-wrap:nowrap;
  overflow:hidden;
}
.brand{
  display:flex; align-items:center; gap:12px;
  min-width: 100px;
  flex-shrink:0;
}
img.logo{
  width:38px; height:38px;
  border-radius:14px;
  object-fit: cover;
  border:1px solid rgba(255,255,255,.14);
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
}
.brand .title{
  line-height:1.1;
}
.brand .title strong{
  font-size:14px;
  letter-spacing:.4px;
}
.brand .title div{
  font-size:12px;
  color:var(--muted2);
  margin-top:2px;
}

.nav{
  display:flex;
  align-items:center;
  gap:6px;
  flex-wrap:nowrap;
  justify-content:center;
  flex-shrink:1;
  overflow:hidden;
}
.nav a{
  font-size:12px;
  color:var(--muted);
  padding:8px 10px;
  border-radius: 12px;
  border:1px solid transparent;
  transition: .22s ease;
  white-space: nowrap;
  flex-shrink:0;
  text-align:center;
  min-width:56px;
}
.nav a:hover{
  color:var(--text);
  background: rgba(255,255,255,.05);
  border-color: rgba(255,255,255,.08);
}
.nav a.active{
  color:var(--text);
  background: rgba(255,255,255,.07);
  border-color: rgba(255,255,255,.12);
}

.navRight{
  display:flex; align-items:center; gap:10px;
  min-width:50px;
  justify-content:flex-end;
  flex-shrink:0;
}

/* Hamburger menu */
.hamburger{
  display:none;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  width:36px; height:36px;
  padding:0;
  border:1px solid rgba(255,255,255,.14);
  border-radius:10px;
  background:rgba(255,255,255,.05);
  cursor:pointer;
  gap:5px;
}
.hamburger span{
  display:block;
  width:18px; height:2px;
  background:var(--text);
  border-radius:2px;
  transition: transform .25s ease, opacity .25s ease;
}
.hamburger.open span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2){ opacity:0; }
.hamburger.open span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 860px){
  .hamburger{ display:flex; }
  .nav{
    position:absolute;
    top:var(--navH);
    left:0; right:0;
    flex-direction:column;
    background: linear-gradient(180deg, rgba(8,10,18,.96), rgba(8,10,18,.92));
    backdrop-filter: blur(18px);
    border-bottom:1px solid rgba(255,255,255,.08);
    padding:12px 22px 18px;
    gap:4px;
    max-height:0;
    overflow:hidden;
    opacity:0;
    transition: max-height .35s ease, opacity .25s ease, padding .3s ease;
  }
  .nav.open{
    max-height:500px;
    opacity:1;
    padding:12px 22px 18px;
  }
  .nav a{
    width:100%;
    padding:12px 14px;
    font-size:14px;
  }
}

.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 14px;
  border-radius: 16px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.05);
  color:var(--text);
  box-shadow: var(--shadow2);
  transition: transform .18s ease, background .22s ease, border-color .22s ease;
  cursor:pointer;
}
.btn:hover{ transform: translateY(-1px); background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.20) }
.btn:active{ transform: translateY(0px) scale(.99) }
.btn.primary{
  border-color: rgba(255,255,255,.20);
  background:
    linear-gradient(135deg, rgba(124,92,255,.35), rgba(23,215,255,.25)),
    rgba(255,255,255,.05);
}
.btn.ghost{
  box-shadow:none;
  background:transparent;
}
.chip{
  display:inline-flex; align-items:center;
  padding:6px 10px;
  border-radius: 999px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.04);
  color:var(--muted);
  font-size:12px;
}

/* Sections */
main{padding-bottom:70px}
.hero{
  padding: 52px 0 10px;
}
.heroGrid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 22px;
  align-items: stretch;
}
@media (max-width: 980px){
  .heroGrid{grid-template-columns:1fr; }
  .brand{min-width:auto}
  .navRight{min-width:auto}
}
.card{
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.04));
  border:1px solid rgba(255,255,255,.12);
  box-shadow: var(--shadow);
  overflow:hidden;
  position:relative;
}
.card.pad{padding:22px}
.card::before{
  content:"";
  position:absolute; inset:-2px;
  background: radial-gradient(800px 300px at 20% 0%, rgba(124,92,255,.18), transparent 60%),
              radial-gradient(600px 240px at 90% 20%, rgba(23,215,255,.14), transparent 60%);
  opacity:.8;
  pointer-events:none;
}
.card > *{position:relative}

.h1{
  font-size: 44px;
  line-height: 1.08;
  letter-spacing: -0.8px;
  margin: 0;
}
@media (max-width: 520px){
  .h1{font-size: 34px}
}
.grad{
  background: linear-gradient(120deg, var(--a), var(--b), var(--c), var(--d));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  animation: hue 9s linear infinite;
  background-size: 220% 220%;
}
@keyframes hue{
  0%{filter:hue-rotate(0deg); background-position: 0% 50%}
  50%{filter:hue-rotate(30deg); background-position: 100% 50%}
  100%{filter:hue-rotate(0deg); background-position: 0% 50%}
}

.lead{
  margin: 14px 0 18px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
  max-width: 62ch;
}

.heroActions{
  display:flex; gap:10px; flex-wrap:wrap;
  margin-top: 10px;
}

.stats{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:10px;
  margin-top: 14px;
}
@media (max-width: 560px){
  .stats{grid-template-columns:1fr; }
}
.stat{
  border-radius: 18px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  padding: 12px 12px;
}
.stat .v{font-size:20px; font-weight: 750}
.stat .k{font-size:12px; color: var(--muted2); margin-top:2px}

.section{
  padding: 34px 0 0;
}
.sectionHead{
  display:flex; align-items: flex-end; justify-content:space-between;
  gap: 10px;
  margin-bottom: 14px;
}
.h2{
  margin:0;
  font-size: 20px;
  letter-spacing: -.2px;
}
.grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
@media (max-width: 980px){ .grid{grid-template-columns: repeat(2, 1fr);} }
@media (max-width: 620px){ .grid{grid-template-columns: 1fr;} }

.item{
  border-radius: var(--radius2);
  padding: 16px 16px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  transition: transform .18s ease, background .22s ease, border-color .22s ease;
}
.item:hover{
  transform: translateY(-2px);
  background: rgba(255,255,255,.055);
  border-color: rgba(255,255,255,.18);
}
.item h3{
  margin:0 0 8px;
  font-size: 14px;
}
.item p{
  margin:0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.hr{
  height:1px;
  background: rgba(255,255,255,.08);
  margin: 22px 0;
}

/* Reveal animation */
.reveal{
  opacity:0;
  transform: translateY(12px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.in{
  opacity:1;
  transform: translateY(0);
}

/* Footer */
footer{
  margin-top: 46px;
  padding: 26px 0 44px;
  border-top:1px solid rgba(255,255,255,.08);
  color: var(--muted2);
  font-size: 13px;
}
.footerRow{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap: 16px;
  flex-wrap:wrap;
}
.footerLinks{
  display:flex; gap:12px; flex-wrap:wrap;
}
.footerLinks a{
  color: var(--muted2);
  padding:6px 10px;
  border-radius: 12px;
  border:1px solid transparent;
}
.footerLinks a:hover{
  color: var(--text);
  background: rgba(255,255,255,.05);
  border-color: rgba(255,255,255,.10);
}

/* Page banner */
.banner{
  margin-top: 14px;
  padding: 18px 20px;
  border-radius: var(--radius);
  border:1px solid rgba(255,255,255,.12);
  background:
    radial-gradient(800px 320px at 20% 0%, rgba(124,92,255,.16), transparent 60%),
    radial-gradient(700px 300px at 80% 30%, rgba(23,215,255,.12), transparent 60%),
    rgba(255,255,255,.04);
}
.banner h1{margin:0; font-size:24px; letter-spacing:-.3px}
.banner p{margin:8px 0 0; color:var(--muted); line-height:1.6}

/* Lists */
.list{margin:0; padding-left: 18px; color: var(--muted); line-height: 1.75}
.badge{
  display:inline-flex;
  align-items:center;
  padding: 4px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  color: var(--muted);
  font-size:12px;
  margin-right: 8px;
}

/* Media block for achievements */
.media{
  display:grid;
  grid-template-columns: 1.8fr 1fr;
  gap: 24px;
  align-items: stretch;
}
@media (max-width: 980px){ .media{grid-template-columns:1fr;} }
.media .img{
  border-radius: var(--radius2);
  border:1px solid rgba(255,255,255,.12);
  background:
    radial-gradient(600px 260px at 20% 20%, rgba(0,255,168,.12), transparent 60%),
    radial-gradient(520px 240px at 70% 20%, rgba(255,61,141,.10), transparent 60%),
    rgba(255,255,255,.03);
  overflow:hidden;
  position:relative;
  display:flex;
  align-items:center;
}
.media .img img{
  width:100%;
  height:auto;
  display:block;
  filter: saturate(1.05) contrast(1.02);
  opacity:.95;
}
.media > div:last-child{
  display:flex;
  flex-direction:column;
  justify-content:center;
}

/* News Carousel */
.news-carousel{
  position:relative;
  overflow:hidden;
  border-radius: var(--radius);
  min-height:280px;
}
.carousel-inner{
  display:flex;
  transition: transform .5s ease;
}
.carousel-slide{
  min-width:100%;
  position:relative;
}
.carousel-slide img{
  width:100%;
  height:280px;
  object-fit:cover;
  display:block;
}
/* 16:9 ratio for news page carousel */
.news-carousel.ratio-16-9 .carousel-slide img{
  height:auto;
  aspect-ratio: 16 / 9;
}
.news-carousel.ratio-16-9{
  min-height:auto;
}
.carousel-slide .carousel-caption{
  position:absolute;
  bottom:0; left:0; right:0;
  padding:20px 24px;
  background: linear-gradient(to top, rgba(0,0,0,.8), transparent);
  color:#fff;
}
.carousel-slide .carousel-caption h3{
  margin:0 0 6px;
  font-size:18px;
}
.carousel-slide .carousel-caption p{
  margin:0;
  font-size:13px;
  color:rgba(255,255,255,.75);
}
.carousel-btn{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  background:rgba(0,0,0,.45);
  color:#fff;
  border:none;
  width:36px; height:36px;
  border-radius:50%;
  cursor:pointer;
  font-size:16px;
  transition: background .2s;
  z-index:2;
}
.carousel-btn:hover{ background:rgba(0,0,0,.7); }
.carousel-btn.prev{ left:12px; }
.carousel-btn.next{ right:12px; }
.carousel-dots{
  position:absolute;
  bottom:12px;
  left:50%;
  transform:translateX(-50%);
  display:flex;
  gap:8px;
  z-index:2;
}
.carousel-dot{
  width:10px; height:10px;
  border-radius:50%;
  background:rgba(255,255,255,.4);
  cursor:pointer;
  transition: background .2s;
}
.carousel-dot.active{ background:rgba(255,255,255,.9); }
@media (max-width:620px){
  .carousel-slide img{ height:200px; }
  .news-carousel{ min-height:200px; }
}

/* News List Page */
.news-list-wrap{
  display:flex;
  flex-direction:column;
  gap:0;
}
.news-list-item{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:16px 0;
  border-bottom:1px solid rgba(255,255,255,.08);
  transition: background .2s;
}
.news-list-item:hover{
  background:rgba(255,255,255,.03);
  padding-left:8px;
  padding-right:8px;
  margin-left:-8px;
  margin-right:-8px;
}
.news-list-item h3{
  margin:0;
  font-size:15px;
  font-weight:500;
}
.news-list-item .date{
  font-size:13px;
  color:var(--muted2);
  white-space:nowrap;
  margin-left:16px;
}

/* Publications List */
.pub-header{
  display:grid;
  grid-template-columns: 2fr 1fr 80px 100px;
  gap:16px;
  padding:12px 16px;
  background:rgba(255,255,255,.06);
  border-radius: var(--radius) var(--radius) 0 0;
  font-weight:600;
  font-size:13px;
  color:var(--muted);
}
.pub-item{
  background:rgba(255,255,255,.03);
  border-bottom:1px solid rgba(255,255,255,.06);
  padding:16px;
}
.pub-item:last-child{
  border-bottom:none;
  border-radius: 0 0 var(--radius) var(--radius);
}
.pub-main{
  display:grid;
  grid-template-columns: 2fr 1fr 80px 100px;
  gap:16px;
  align-items:center;
}
.pub-col-title{
  font-weight:500;
}
.pub-col-venue{
  font-size:13px;
  color:var(--muted);
}
.pub-col-year{
  font-size:13px;
  text-align:center;
}
.pub-col-link{
  text-align:right;
}
.pub-author{
  margin-top:8px;
  font-size:12px;
}
.btn.sm{
  padding:4px 10px;
  font-size:11px;
}
@media (max-width: 768px){
  .pub-header{
    display:none;
  }
  .pub-main{
    grid-template-columns:1fr;
    gap:8px;
  }
  .pub-col-year, .pub-col-link{
    text-align:left;
  }
}