:root{
  --bg:#070B14;
  --bg-2:#0B1220;
  --ink:#F2F5FA;
  --ink-dim:#929DB3;
  --blue:#69A9FF;
  --purple:#9B8CFF;
  --line:rgba(242,245,250,.08);
  --glass:rgba(242,245,250,.03);
}
*{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--ink);
  font-family:-apple-system,"SF Pro Display","Inter","PingFang SC","Microsoft YaHei",sans-serif;
  line-height:1.6;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;background:none;border:none;color:inherit}
kbd{font-family:inherit}

/* 背景网格 + 光晕 */
.bg-grid{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(105,169,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(105,169,255,.04) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 40%,#000 30%,transparent 80%);
}
.bg-glow{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(ellipse 60% 50% at 50% 35%,rgba(105,169,255,.12),transparent 70%),
    radial-gradient(ellipse 40% 30% at 80% 80%,rgba(155,140,255,.08),transparent 70%);
}

/* 顶部导航 */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 40px;
  background:linear-gradient(180deg,rgba(7,11,20,.8),transparent);
  backdrop-filter:blur(12px);
}
.brand{font-size:15px;font-weight:700;letter-spacing:.05em;display:flex;align-items:center;gap:10px}
.brand em{font-style:normal;font-size:10px;color:var(--ink-dim);font-weight:400}
.brand-mark{width:8px;height:8px;border-radius:50%;background:var(--blue);box-shadow:0 0 12px var(--blue)}
.topnav{display:flex;gap:28px}
.topnav a{font-size:13px;color:var(--ink-dim);transition:color .2s;letter-spacing:.03em}
.topnav a:hover{color:var(--ink)}
.topbar-right{display:flex;align-items:center;gap:14px}
.cmd-btn{
  font-size:12px;color:var(--ink-dim);border:1px solid var(--line);
  padding:6px 10px;border-radius:6px;transition:all .2s;
}
.cmd-btn:hover{color:var(--ink);border-color:var(--ink-dim)}
.cmd-btn kbd{font-size:11px}
.sound-toggle{
  display:flex;align-items:center;gap:8px;font-size:11px;color:var(--ink-dim);
  letter-spacing:.1em;
}
.sound-toggle .dot{
  width:6px;height:6px;border-radius:50%;background:var(--ink-dim);transition:all .2s;
}
.sound-toggle.on .dot{background:var(--blue);box-shadow:0 0 8px var(--blue)}

/* 命令面板 */
.cmd-overlay{
  position:fixed;inset:0;z-index:100;
  background:rgba(7,11,20,.7);backdrop-filter:blur(8px);
  display:flex;justify-content:center;align-items:flex-start;
  padding-top:15vh;
}
.cmd-panel{
  width:min(560px,90vw);background:var(--bg-2);
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
  box-shadow:0 24px 60px rgba(0,0,0,.5);
}
.cmd-search{
  display:flex;align-items:center;gap:10px;padding:14px 18px;
  border-bottom:1px solid var(--line);
}
.cmd-prompt{color:var(--blue);font-family:monospace}
.cmd-search input{
  flex:1;background:none;border:none;outline:none;color:var(--ink);
  font-size:14px;
}
.cmd-list{max-height:320px;overflow-y:auto}
.cmd-item{
  width:100%;text-align:left;padding:11px 18px;font-size:13px;
  display:flex;justify-content:space-between;transition:background .15s;
}
.cmd-item:hover,.cmd-item.active{background:rgba(105,169,255,.08)}
.cmd-item .hint{color:var(--ink-dim);font-size:11px}

/* HERO */
.hero{
  position:relative;min-height:100vh;
  display:grid;grid-template-columns:1fr 1fr;
  align-items:center;
  padding:100px 40px 60px;z-index:1;
}
.orb{
  position:absolute;right:8%;top:50%;transform:translateY(-50%);
  width:min(420px,40vw);aspect-ratio:1;
  transition:transform .3s ease-out;
}
.orb-core{
  position:absolute;inset:32%;border-radius:50%;
  background:radial-gradient(circle,rgba(105,169,255,.4),rgba(155,140,255,.15) 60%,transparent);
  filter:blur(20px);
  animation:breathe 6s ease-in-out infinite;
}
.orb-ring{position:absolute;border-radius:50%;border:1px solid rgba(105,169,255,.2)}
.orb-ring.r1{inset:10%;animation:spin 20s linear infinite}
.orb-ring.r2{inset:22%;border-color:rgba(155,140,255,.15);animation:spin 15s linear infinite reverse}
.orb-ring.r3{inset:34%;border-style:dashed;animation:spin 10s linear infinite}
.orb-particles span{
  position:absolute;width:4px;height:4px;border-radius:50%;background:var(--blue);
  top:50%;left:50%;
  transform:rotate(var(--a)) translateY(-100px);
  animation:float 4s ease-in-out infinite;animation-delay:var(--d);
  box-shadow:0 0 8px var(--blue);
}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes breathe{0%,100%{opacity:.6;transform:scale(1)}50%{opacity:1;transform:scale(1.1)}}
@keyframes float{0%,100%{opacity:.4}50%{opacity:1}}

.hero-content{position:relative;z-index:2;max-width:560px}
.hero-eyebrow{
  font-size:11px;letter-spacing:.25em;color:var(--blue);
  margin-bottom:20px;font-weight:500;
}
.hero-name{
  font-size:clamp(44px,6vw,76px);font-weight:700;line-height:1.08;
  letter-spacing:-.02em;margin-bottom:16px;
}
.hero-role{
  font-size:clamp(18px,2vw,22px);color:var(--ink-dim);
  font-weight:300;letter-spacing:.05em;margin-bottom:24px;
}
.hero-tag{
  font-size:16px;color:var(--ink-dim);max-width:420px;line-height:1.7;
  margin-bottom:36px;
}
.hero-foot{
  position:absolute;bottom:80px;left:40px;
  display:flex;gap:14px;align-items:center;
  font-size:10px;letter-spacing:.2em;color:var(--ink-dim);
}
.hero-foot i{opacity:.4}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-primary{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--ink);color:var(--bg);
  padding:13px 26px;border-radius:8px;font-size:13px;font-weight:600;
  letter-spacing:.03em;transition:all .2s;
}
.btn-primary:hover{background:var(--blue);color:var(--bg);transform:translateY(-1px)}
.btn-primary .arr{transition:transform .2s}
.btn-primary:hover .arr{transform:translateX(3px)}
.btn-ghost{
  display:inline-flex;align-items:center;
  padding:13px 26px;border-radius:8px;font-size:13px;
  border:1px solid var(--line);color:var(--ink);transition:all .2s;
}
.btn-ghost:hover{border-color:var(--ink-dim);background:var(--glass)}

.entries{
  position:absolute;right:40px;bottom:80px;
  display:flex;flex-direction:column;gap:14px;z-index:2;
}
.entry{
  display:grid;grid-template-columns:auto 1fr;gap:4px 14px;
  padding:14px 18px;border-left:1px solid var(--line);
  transition:all .25s;min-width:220px;
}
.entry:hover{border-left-color:var(--blue);background:var(--glass)}
.entry-num{font-size:10px;color:var(--ink-dim);font-family:monospace;grid-row:span 2;padding-top:3px}
.entry-title{font-size:13px;font-weight:600;letter-spacing:.03em}
.entry-desc{font-size:11px;color:var(--ink-dim)}

.scroll-hint{
  position:absolute;bottom:24px;left:50%;transform:translateX(-50%);
  font-size:10px;letter-spacing:.2em;color:var(--ink-dim);
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:.4}50%{opacity:1}}

/* reveal 入场 */
.reveal{opacity:0;transform:translateY(16px);filter:blur(4px);
  animation:reveal .9s cubic-bezier(.22,1,.36,1) forwards;
  animation-delay:var(--d,0s);
}
@keyframes reveal{to{opacity:1;transform:none;filter:blur(0)}}

/* SECTIONS */
.section{
  position:relative;z-index:1;
  padding:120px 40px;max-width:1200px;margin:0 auto;
}
.sec-head{margin-bottom:60px}
.sec-num{
  font-size:11px;color:var(--blue);font-family:monospace;
  letter-spacing:.1em;display:block;margin-bottom:10px;
}
.sec-head h2{
  font-size:clamp(36px,5vw,56px);font-weight:700;letter-spacing:-.02em;
  margin-bottom:8px;
}
.sec-sub{font-size:14px;color:var(--ink-dim)}

/* PROFILE */
.profile-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:60px;align-items:start}
.lead{font-size:clamp(20px,2.2vw,28px);line-height:1.5;font-weight:500;margin-bottom:20px}
.body{font-size:15px;color:var(--ink-dim);line-height:1.8}
.tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  font-size:12px;padding:8px 14px;border-radius:100px;
  border:1px solid var(--line);color:var(--ink-dim);
  transition:all .2s;
}
.tag:hover{border-color:var(--blue);color:var(--blue)}

/* WORK */
.work-list{display:flex;flex-direction:column}
.work-row{
  padding:36px 0;border-top:1px solid var(--line);
  display:grid;grid-template-columns:140px 1fr;gap:10px 30px;
  transition:padding .25s;
}
.work-row:last-child{border-bottom:1px solid var(--line)}
.work-row:hover{padding-left:12px}
.work-meta{display:flex;flex-direction:column;gap:6px;grid-row:1 / span 2;align-self:start}
.work-year{font-family:monospace;font-size:12px;color:var(--blue)}
.work-type{font-size:11px;color:var(--ink-dim);line-height:1.4}
.work-title{font-size:clamp(20px,2.2vw,26px);font-weight:600;letter-spacing:-.01em;grid-column:2}
.work-desc{font-size:14px;color:var(--ink-dim);line-height:1.75;max-width:640px;grid-column:2}

/* LAB */
.lab-card{
  padding:40px;border:1px solid var(--line);border-radius:16px;
  background:var(--glass);max-width:760px;
}
.lab-q{font-size:18px;font-weight:600;margin-bottom:24px;line-height:1.5}
.lab-options{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}
.lab-opt{
  padding:10px 18px;border:1px solid var(--line);border-radius:8px;
  font-size:13px;color:var(--ink-dim);transition:all .2s;
}
.lab-opt:hover{border-color:var(--blue);color:var(--ink)}
.lab-opt.chosen{background:rgba(105,169,255,.1);border-color:var(--blue);color:var(--blue)}
.lab-result{
  padding:16px;border-radius:8px;background:rgba(105,169,255,.05);
  font-size:13px;line-height:1.7;color:var(--ink-dim);
  border-left:2px solid var(--blue);
}

/* CONTACT */
.contact-inner{text-align:center;padding:60px 0}
.big-line{
  font-size:clamp(32px,5vw,60px);font-weight:700;letter-spacing:-.02em;
  margin-bottom:24px;line-height:1.1;
}
.accent{
  background:linear-gradient(135deg,var(--blue),var(--purple));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.mail{
  font-size:15px;color:var(--ink-dim);border-bottom:1px solid var(--line);
  padding-bottom:2px;transition:all .2s;
}
.mail:hover{color:var(--blue);border-color:var(--blue)}

footer{
  position:relative;z-index:1;
  display:flex;justify-content:space-between;
  padding:30px 40px;font-size:11px;color:var(--ink-dim);
  border-top:1px solid var(--line);
}

/* 响应式 */
@media(max-width:820px){
  .topbar{padding:14px 18px}
  .topnav{display:none}
  .hero{grid-template-columns:1fr;padding:90px 20px 40px;min-height:auto}
  .orb{position:relative;right:auto;top:auto;transform:none;margin:30px auto 0;order:-1;width:260px}
  .hero-foot{position:static;margin-top:50px;flex-wrap:wrap;justify-content:center}
  .scroll-hint{display:none}
  .section{padding:80px 20px}
  .profile-grid{grid-template-columns:1fr;gap:30px}
  .work-row{grid-template-columns:1fr;gap:10px}
  .work-meta{grid-row:auto}
  .work-title,.work-desc{grid-column:1}
  footer{flex-direction:column;gap:6px}
}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none;filter:none}
}