@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700&display=swap');

:root{
  --bg:#080b12;
  --bg2:#0d121c;
  --card:rgba(255,255,255,.045);
  --card2:rgba(255,255,255,.065);
  --text:#f3f6fb;
  --muted:#98a3b5;
  --line:rgba(255,255,255,.10);
  --accent:#6ee7ff;
  --accent2:#8b5cf6;
  --max:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--text);
  background:
    radial-gradient(900px 500px at 75% 8%, rgba(139,92,246,.12), transparent 65%),
    radial-gradient(700px 450px at 15% 18%, rgba(110,231,255,.09), transparent 60%),
    var(--bg);
  font-family:Inter,"Noto Sans SC",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  line-height:1.7;
  overflow-x:hidden;
}
body:before{
  content:"";
  position:fixed;inset:0;pointer-events:none;z-index:-1;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);
  background-size:40px 40px;
  mask-image:linear-gradient(to bottom,black,transparent 90%);
}
a{color:inherit;text-decoration:none}
.container{width:min(var(--max),calc(100% - 44px));margin:auto}
.nav-wrap{
  position:sticky;top:0;z-index:20;
  backdrop-filter:blur(18px);
  background:rgba(8,11,18,.72);
  border-bottom:1px solid var(--line)
}
.nav{height:72px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.02em}
.brand-dot{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 20px var(--accent)}
.nav-links{display:flex;gap:28px;color:#b5bfce;font-size:14px}
.nav-links a{transition:.2s}
.nav-links a:hover{color:#fff}
.menu-btn{display:none;background:none;border:0;color:white;font-size:24px}

.hero{
  min-height:calc(100vh - 72px);
  display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center;
  padding-top:70px;padding-bottom:80px
}
.eyebrow{
  color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.16em;margin:0 0 16px
}
.hero h1{font-size:clamp(52px,7vw,92px);line-height:.98;letter-spacing:-.055em;margin:0}
.hero h1 span{
  background:linear-gradient(115deg,#fff 20%,var(--accent) 58%,#b99cff);
  -webkit-background-clip:text;background-clip:text;color:transparent
}
.hero h2{font-size:clamp(20px,2.3vw,30px);font-weight:500;color:#b6c0cf;margin:24px 0 0}
.hero h2 em{font-style:normal;color:#566173;margin:0 7px}
.hero-desc{max-width:700px;color:var(--muted);font-size:17px;margin:28px 0 0}
.hero-actions,.contact-actions{display:flex;gap:12px;margin-top:34px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:0 22px;border-radius:12px;
  font-size:14px;font-weight:700;border:1px solid var(--line);transition:.2s
}
.btn.primary{color:#041016;background:linear-gradient(120deg,#8ceeff,#a7f3d0);border:0}
.btn.primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(110,231,255,.18)}
.btn.ghost{background:rgba(255,255,255,.035)}
.btn.ghost:hover{background:rgba(255,255,255,.08)}

.quick-stats{display:flex;gap:34px;margin-top:50px;flex-wrap:wrap}
.quick-stats div{display:flex;flex-direction:column}
.quick-stats strong{font-size:15px}
.quick-stats span{font-size:11px;color:#6f7c90;margin-top:3px}

.hero-visual{position:relative;min-height:480px;display:flex;align-items:center;justify-content:center}
.orb{position:absolute;border-radius:50%;filter:blur(1px)}
.orb-a{width:300px;height:300px;background:radial-gradient(circle at 35% 30%,rgba(110,231,255,.25),rgba(110,231,255,.02) 67%,transparent);top:15px;right:30px}
.orb-b{width:280px;height:280px;background:radial-gradient(circle at 40% 40%,rgba(139,92,246,.20),transparent 68%);bottom:0;left:20px}
.terminal{
  width:min(100%,520px);position:relative;z-index:2;border:1px solid rgba(255,255,255,.13);
  border-radius:18px;background:rgba(8,13,22,.80);box-shadow:0 40px 90px rgba(0,0,0,.38);
  backdrop-filter:blur(14px);overflow:hidden;transform:rotate(-1.2deg)
}
.terminal-head{height:45px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:7px;padding:0 16px}
.terminal-head span{width:8px;height:8px;border-radius:50%;background:#475365}
.terminal pre{margin:0;padding:26px 28px 32px;overflow:auto;font-size:13px;line-height:1.85;color:#dce5f4}
.muted{color:#6f7c90}.accent{color:var(--accent)}

.section{padding:105px 0}
.section-head{margin-bottom:40px}
.section-head h3,.contact h3,.education-card h3{font-size:clamp(32px,4vw,50px);line-height:1.1;margin:0;letter-spacing:-.035em}
.section-head.split{display:flex;justify-content:space-between;align-items:end;gap:30px}
.section-note{max-width:420px;color:var(--muted);margin:0}

.card,.mini-card,.project-card,.education-card{
  background:linear-gradient(145deg,rgba(255,255,255,.06),rgba(255,255,255,.025));
  border:1px solid var(--line);border-radius:20px
}
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
.about-card{padding:34px;font-size:17px;color:#b9c3d2}
.about-card strong{color:#f6f8fb}
.about-card p:first-child{margin-top:0}
.about-card p:last-child{margin-bottom:0}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.mini-card{padding:24px;min-height:154px}
.mini-card span{font-size:11px;color:var(--accent);font-weight:800}
.mini-card h4{font-size:20px;margin:22px 0 6px}
.mini-card p{font-size:12px;color:var(--muted);margin:0}

.research-list{border-top:1px solid var(--line)}
.research-item{
  display:grid;grid-template-columns:70px 1fr 40px;gap:20px;align-items:center;
  padding:30px 0;border-bottom:1px solid var(--line);transition:.2s
}
.research-item:hover{padding-left:12px;background:linear-gradient(90deg,rgba(110,231,255,.025),transparent)}
.research-item .num{font-size:12px;color:#657187}
.research-item h4{font-size:22px;margin:0 0 6px}
.research-item p{color:var(--muted);margin:0}
.arrow{font-size:22px;color:#657187}

.project-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.project-card{padding:28px;min-height:330px;display:flex;flex-direction:column}
.project-card.featured{grid-column:span 2;min-height:360px;background:
  radial-gradient(700px 250px at 90% 5%,rgba(110,231,255,.07),transparent 60%),
  linear-gradient(145deg,rgba(255,255,255,.07),rgba(255,255,255,.025))}
.project-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:auto}
.tag{font-size:11px;font-weight:800;letter-spacing:.08em;color:var(--accent);border:1px solid rgba(110,231,255,.24);padding:5px 9px;border-radius:999px}
.year{font-size:11px;color:#6f7c90}
.project-card h4{font-size:clamp(24px,3vw,38px);line-height:1.12;margin:46px 0 14px;letter-spacing:-.03em}
.project-card:not(.featured) h4{font-size:27px}
.project-card p{color:var(--muted);margin:0 0 24px;max-width:850px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
.chips span{font-size:11px;color:#b8c3d1;background:rgba(255,255,255,.05);border:1px solid var(--line);padding:6px 9px;border-radius:8px}

.skills{border-top:1px solid var(--line)}
.skill-row{display:grid;grid-template-columns:190px 1fr;gap:25px;padding:23px 0;border-bottom:1px solid var(--line)}
.skill-row>span{color:#758198;font-size:13px}
.skill-row div{display:flex;gap:10px;flex-wrap:wrap}
.skill-row b{font-size:13px;font-weight:600;border:1px solid var(--line);border-radius:9px;padding:6px 10px;background:rgba(255,255,255,.035)}

.education-card{padding:34px;display:flex;justify-content:space-between;align-items:end;gap:30px}
.education-card h3{font-size:38px;margin-bottom:10px}
.education-card p{color:var(--muted);margin:0}
.edu-meta{text-align:right;display:flex;flex-direction:column}
.edu-meta strong{font-size:20px}
.edu-meta span{color:#718097;font-size:12px;margin-top:4px}

.contact{text-align:center;padding-top:130px;padding-bottom:130px}
.contact h3{max-width:900px;margin:0 auto;font-size:clamp(38px,6vw,72px)}
.contact>p:not(.eyebrow):not(.contact-tip){color:var(--muted);font-size:17px}
.contact-actions{justify-content:center}
.contact-tip{font-size:11px;color:#657187;margin-top:24px}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:#c5cfdb}

footer{border-top:1px solid var(--line);color:#657187;font-size:12px}
.footer-inner{min-height:90px;display:flex;align-items:center;justify-content:space-between;gap:20px}

.noise{position:fixed;inset:0;pointer-events:none;opacity:.025;z-index:100;mix-blend-mode:screen;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.9'/%3E%3C/svg%3E")}

@media (max-width:900px){
  .hero{grid-template-columns:1fr;gap:20px;padding-top:85px}
  .hero-visual{min-height:390px}
  .about-grid{grid-template-columns:1fr}
  .project-grid{grid-template-columns:1fr}
  .project-card.featured{grid-column:auto}
  .section-head.split{align-items:start;flex-direction:column}
}
@media (max-width:680px){
  .container{width:min(100% - 28px,var(--max))}
  .nav-links{
    display:none;position:absolute;top:72px;left:14px;right:14px;
    padding:18px;border:1px solid var(--line);border-radius:14px;background:#0d121c;
    flex-direction:column;gap:14px
  }
  .nav-links.open{display:flex}
  .menu-btn{display:block}
  .hero{min-height:auto;padding-bottom:55px}
  .hero h1{font-size:53px}
  .hero-visual{min-height:310px}
  .terminal pre{font-size:11px;padding:20px}
  .quick-stats{gap:20px}
  .section{padding:76px 0}
  .mini-grid{grid-template-columns:1fr}
  .research-item{grid-template-columns:42px 1fr;gap:12px}
  .research-item .arrow{display:none}
  .skill-row{grid-template-columns:1fr;gap:10px}
  .education-card{align-items:start;flex-direction:column}
  .edu-meta{text-align:left}
  .contact{padding-top:90px;padding-bottom:90px}
  .footer-inner{align-items:flex-start;flex-direction:column;justify-content:center}
}
.beian-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  text-decoration: none;
}

.beian-link img {
  width: 10px;
  height: 10px;
  object-fit: contain;
  flex-shrink: 0;
}