/* ============================================================
   LSY.dev — 羅世晏 resume site
   aesthetic: trading-terminal × engineering blueprint, dark
   ============================================================ */

:root{
  --bg:        #050810;
  --bg-2:      #080d19;
  --bg-card:   #0a1020;
  --line:      rgba(97,175,255,.14);
  --line-soft: rgba(97,175,255,.07);
  --ink:       #dce7f5;
  --ink-dim:   #8294ad;
  --ink-faint: #4d5c72;
  --cyan:      #35e0ff;
  --cyan-soft: rgba(53,224,255,.12);
  --amber:     #ffb454;
  --green:     #46e58c;
  --red:       #ff5d6c;
  --font-zh:   "Noto Sans TC", "PingFang TC", sans-serif;
  --font-en:   "Chakra Petch", var(--font-zh);
  --font-mono: "JetBrains Mono", "Noto Sans TC", monospace;
  --rail-w:    72px;
  --max-w:     1120px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-zh);
  font-size:16px;line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--cyan);color:#03131a}
a{color:inherit;text-decoration:none}
ul{list-style:none}
mark{background:none;color:var(--cyan);font-weight:700}
em{font-style:normal;color:var(--amber)}

/* scrollbar */
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:#1a2740;border:2px solid var(--bg);border-radius:6px}
::-webkit-scrollbar-thumb:hover{background:#27395c}

/* ---------- overlays ---------- */
.grain{
  position:fixed;inset:-100%;z-index:60;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grain 7s steps(8) infinite;
}
@keyframes grain{
  0%,100%{transform:translate(0,0)} 12%{transform:translate(-3%,2%)}
  25%{transform:translate(2%,-4%)} 37%{transform:translate(-4%,-2%)}
  50%{transform:translate(3%,3%)}  62%{transform:translate(-2%,4%)}
  75%{transform:translate(4%,-3%)} 87%{transform:translate(-3%,-3%)}
}
.grid-overlay{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(var(--line-soft) 1px,transparent 1px),
    linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 0%,#000 0%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 0%,#000 0%,transparent 75%);
}

/* ---------- scroll progress bar ---------- */
.scroll-progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:70;pointer-events:none}
.scroll-progress span{
  display:block;height:100%;
  background:linear-gradient(90deg,var(--cyan),#7ceeff);
  transform-origin:left;transform:scaleX(0);
  box-shadow:0 0 12px rgba(53,224,255,.6);
}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.7,.3,1),transform .8s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}
.d4{transition-delay:.32s}.d5{transition-delay:.40s}.d6{transition-delay:.48s}

/* ============================================================
   NAV
   ============================================================ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 32px;height:64px;
  background:rgba(5,8,16,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
  transition:background .3s;
}
.nav-logo{display:flex;align-items:center;gap:10px;font-family:var(--font-en);font-weight:700;font-size:18px;letter-spacing:.06em}
.logo-mark{color:var(--cyan);font-size:14px}
.logo-dim{color:var(--ink-faint)}
.nav-links{display:flex;align-items:center;gap:28px;font-family:var(--font-mono);font-size:12.5px;letter-spacing:.08em}
.nav-links a{color:var(--ink-dim);transition:color .2s;position:relative}
.nav-links a:hover{color:var(--cyan)}
.nav-links .n{color:var(--cyan);opacity:.6;margin-right:5px;font-size:10px}
.nav-cta{
  color:var(--cyan)!important;border:1px solid rgba(53,224,255,.35);
  padding:7px 14px;transition:all .2s!important;
}
.nav-cta:hover{background:var(--cyan-soft);box-shadow:0 0 18px rgba(53,224,255,.25)}
.nav-right{display:flex;align-items:center;gap:22px}
.lang-toggle{
  display:inline-flex;align-items:center;gap:4px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;
  border:1px solid var(--line);background:rgba(53,224,255,.03);
  padding:5px 11px;cursor:pointer;color:var(--ink-faint);transition:border-color .2s;
}
.lang-toggle:hover{border-color:rgba(53,224,255,.4)}
.lang-opt{transition:color .2s}
.lang-opt.on{color:var(--cyan)}
.lang-sep{opacity:.4}
html[data-lang="en"] .head-en{display:none}
.nav-burger{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.nav-burger span{width:22px;height:2px;background:var(--cyan);transition:.3s}

/* ============================================================
   SIDE RAIL
   ============================================================ */
.rail{
  position:fixed;left:0;top:0;bottom:0;width:var(--rail-w);z-index:40;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;
  border-right:1px solid var(--line-soft);
  pointer-events:none;
}
.rail-line{position:absolute;top:0;bottom:0;left:50%;width:1px;background:linear-gradient(transparent,var(--line) 30%,var(--line) 70%,transparent)}
.rail-dots{display:flex;flex-direction:column;gap:18px;position:relative;z-index:1}
.rail-dot{width:7px;height:7px;border:1px solid var(--ink-faint);transform:rotate(45deg);background:var(--bg);transition:.3s;pointer-events:auto;display:block}
.rail-dot.on{background:var(--cyan);border-color:var(--cyan);box-shadow:0 0 10px rgba(53,224,255,.7)}
.rail-label{
  position:absolute;bottom:34px;
  font-family:var(--font-mono);font-size:9.5px;letter-spacing:.25em;color:var(--ink-faint);
  writing-mode:vertical-rl;background:var(--bg);padding:8px 0;
}

/* ============================================================
   HERO
   ============================================================ */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:center;overflow:hidden}
.bg-canvas{position:fixed;inset:0;width:100%;height:100%;display:block;z-index:0;pointer-events:none}
.hero-vignette{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(ellipse 80% 60% at 62% 40%,transparent 30%,rgba(5,8,16,.55) 100%),
    linear-gradient(to bottom,rgba(5,8,16,.35),transparent 22%,transparent 70%,var(--bg) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  max-width:var(--max-w);margin:0 auto;width:100%;
  padding:120px 32px 0 calc(var(--rail-w) + 40px);
}
.hero-eyebrow{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:20px}
.tag-live{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.15em;color:var(--green);
  border:1px solid rgba(70,229,140,.35);padding:5px 12px;background:rgba(70,229,140,.06);
}
.tag-live i{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green);animation:blink 1.6s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}
.eyebrow-text{font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;color:var(--ink-dim)}

.hero-name{display:flex;flex-direction:column;line-height:1;margin-bottom:26px}
.hero-name-zh{
  font-family:var(--font-zh);font-weight:900;
  font-size:clamp(64px,10vw,124px);letter-spacing:.04em;
  background:linear-gradient(115deg,#f2f7ff 30%,var(--cyan) 75%,#7ceeff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 30px rgba(53,224,255,.18));
}
.hero-name-en{
  font-family:var(--font-en);font-weight:700;
  font-size:clamp(22px,3.4vw,40px);letter-spacing:.34em;
  color:transparent;-webkit-text-stroke:1px rgba(220,231,245,.4);
  margin-top:14px;position:relative;
}
.hero-name-en::after{
  content:attr(data-text);position:absolute;left:0;top:0;
  -webkit-text-stroke:0;color:var(--cyan);
  clip-path:inset(0 100% 0 0);
  animation:nameFill 1.8s cubic-bezier(.6,0,.2,1) 1s forwards;
}
@keyframes nameFill{to{clip-path:inset(0 38% 0 0)}}

.hero-tagline{font-size:clamp(16px,1.7vw,19px);color:var(--ink-dim);max-width:640px;margin-bottom:34px}
.hero-tagline em{font-family:var(--font-mono);font-weight:700}

.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:44px}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:13.5px;letter-spacing:.1em;
  padding:13px 26px;border:1px solid;transition:.25s;position:relative;
}
.btn-primary{color:#03131a;background:var(--cyan);border-color:var(--cyan);font-weight:700}
.btn-primary:hover{box-shadow:0 0 28px rgba(53,224,255,.5);transform:translateY(-2px)}
.btn-arrow{transition:transform .25s}
.btn-primary:hover .btn-arrow{transform:translateX(4px)}
.btn-ghost{color:var(--ink-dim);border-color:var(--line)}
.btn-ghost:hover{color:var(--cyan);border-color:rgba(53,224,255,.4)}

/* terminal */
.terminal{
  max-width:600px;border:1px solid var(--line);background:rgba(8,13,25,.82);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  box-shadow:0 24px 60px rgba(0,0,0,.5);
}
.terminal-bar{display:flex;align-items:center;gap:7px;padding:9px 14px;border-bottom:1px solid var(--line-soft);background:rgba(10,16,32,.9)}
.t-dot{width:10px;height:10px;border-radius:50%}
.t-dot.r{background:#ff5f57}.t-dot.y{background:#febc2e}.t-dot.g{background:#28c840}
.terminal-title{margin-left:8px;font-family:var(--font-mono);font-size:11px;color:var(--ink-faint);letter-spacing:.05em}
.terminal-tag{
  margin-left:auto;font-family:var(--font-mono);font-size:9px;letter-spacing:.2em;
  color:var(--amber);border:1px solid rgba(255,180,84,.3);
  padding:2px 7px;background:rgba(255,180,84,.06);
}
.terminal-cap{
  max-width:600px;margin-top:11px;
  font-family:var(--font-mono);font-size:10.5px;line-height:1.7;letter-spacing:.03em;
  color:var(--ink-faint);
}
.terminal-cap b{color:var(--ink-dim);font-weight:400}
.terminal-body{
  padding:14px 16px;height:118px;overflow:hidden;
  font-family:var(--font-mono);font-size:11.5px;line-height:1.8;color:var(--ink-dim);
}
.terminal-body .t-ok{color:var(--green)}
.terminal-body .t-key{color:var(--cyan)}
.terminal-body .t-num{color:var(--amber)}
.terminal-body .t-dim{color:var(--ink-faint)}

/* stats strip */
.hero-stats{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(3,1fr);
  max-width:var(--max-w);margin:56px auto 0;width:calc(100% - 64px);
  margin-left:auto;margin-right:auto;
  border:1px solid var(--line);background:rgba(8,13,25,.65);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.stat{padding:22px 26px;border-right:1px solid var(--line-soft)}
.stat:last-child{border-right:0}
.stat-num{
  display:block;font-family:var(--font-mono);font-weight:700;
  font-size:clamp(22px,2.6vw,32px);color:var(--cyan);letter-spacing:.02em;
  text-shadow:0 0 24px rgba(53,224,255,.35);
}
.stat-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--ink-faint)}

.scroll-cue{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);z-index:3;width:22px;height:36px;border:1px solid var(--ink-faint);border-radius:11px;display:flex;justify-content:center}
.scroll-cue span{width:3px;height:8px;background:var(--cyan);border-radius:2px;margin-top:6px;animation:cue 1.8s infinite}
@keyframes cue{0%{transform:translateY(0);opacity:1}70%{transform:translateY(14px);opacity:0}100%{opacity:0}}

/* ============================================================
   SECTIONS (shared)
   ============================================================ */
.section{
  position:relative;z-index:2;
  max-width:var(--max-w);margin:0 auto;
  padding:110px 32px 40px calc(var(--rail-w) + 40px);
}
.section-head{display:flex;align-items:baseline;gap:20px;margin-bottom:52px;border-bottom:1px solid var(--line);padding-bottom:20px}
.section-no{font-family:var(--font-mono);font-size:13px;color:var(--amber);letter-spacing:.1em}
.section-head h2{font-size:clamp(28px,3.4vw,40px);font-weight:900;letter-spacing:.05em}
.head-en{
  font-family:var(--font-en);font-weight:600;font-size:.5em;
  color:var(--ink-faint);letter-spacing:.3em;margin-left:10px;vertical-align:middle;
}

/* corner brackets */
.card-corner{position:absolute;width:14px;height:14px;pointer-events:none}
.card-corner.tl{top:-1px;left:-1px;border-top:2px solid var(--cyan);border-left:2px solid var(--cyan)}
.card-corner.br{bottom:-1px;right:-1px;border-bottom:2px solid var(--cyan);border-right:2px solid var(--cyan)}

/* tags */
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tags span{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;
  color:var(--ink-dim);border:1px solid var(--line);padding:4px 10px;
  background:rgba(53,224,255,.03);transition:.2s;
}
.tags span:hover{color:var(--cyan);border-color:rgba(53,224,255,.4)}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:48px;align-items:start}
.about-text p{margin-bottom:20px;color:var(--ink-dim)}
.about-text .lead{font-size:19px;color:var(--ink);line-height:1.9}
.about-text strong{color:var(--ink)}
.about-card{
  position:relative;border:1px solid var(--line);background:var(--bg-card);
  padding:30px 28px;position:sticky;top:96px;
}
.spec-list div{display:grid;grid-template-columns:64px 1fr;gap:14px;padding:13px 0;border-bottom:1px dashed var(--line-soft)}
.spec-list div:last-child{border-bottom:0}
.spec-list dt{font-family:var(--font-mono);font-size:11px;color:var(--amber);letter-spacing:.12em;padding-top:3px}
.spec-list dd{font-size:14.5px;color:var(--ink)}
.dd-sub{display:block;font-size:12.5px;color:var(--ink-faint);margin-top:2px}

/* ============================================================
   EXPERIENCE — timeline
   ============================================================ */
.timeline{position:relative;padding-left:36px}
.timeline::before{
  content:"";position:absolute;left:7px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(var(--cyan),var(--line) 20%,var(--line) 90%,transparent);
}
.tl-progress{
  position:absolute;left:7px;top:8px;bottom:8px;width:1px;
  background:var(--cyan);box-shadow:0 0 10px rgba(53,224,255,.55);
  transform-origin:top;transform:scaleY(0);pointer-events:none;
}
.tl-item{position:relative;margin-bottom:44px}
.tl-marker{
  position:absolute;left:-36px;top:10px;width:15px;height:15px;
  border:2px solid var(--cyan);transform:rotate(45deg);background:var(--bg);z-index:1;
}
.tl-item:not(:first-child) .tl-marker{border-color:var(--ink-faint)}
.tl-pulse{
  position:absolute;inset:-8px;border:1px solid rgba(53,224,255,.5);
  animation:pulse 2.2s infinite;
}
@keyframes pulse{0%{transform:scale(.6);opacity:1}100%{transform:scale(1.6);opacity:0}}
.tl-card{
  border:1px solid var(--line);background:var(--bg-card);padding:28px 30px;
  transition:border-color .3s, box-shadow .3s, transform .3s;
}
.tl-card:hover{border-color:rgba(53,224,255,.35);box-shadow:0 12px 40px rgba(0,0,0,.35), 0 0 0 1px rgba(53,224,255,.08);transform:translateY(-3px)}
.tl-meta{display:flex;align-items:center;gap:14px;margin-bottom:10px}
.tl-date{font-family:var(--font-mono);font-size:12px;color:var(--amber);letter-spacing:.14em}
.tl-badge.now{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.15em;color:var(--green);
  border:1px solid rgba(70,229,140,.4);padding:2px 9px;background:rgba(70,229,140,.07);
}
.tl-card h3{font-size:21px;font-weight:700;letter-spacing:.03em}
.tl-lead{font-size:12.5px;font-weight:500;color:var(--cyan);font-family:var(--font-mono);margin-left:8px;letter-spacing:.05em}
.tl-org{font-size:13.5px;color:var(--ink-faint);margin:4px 0 16px;font-family:var(--font-mono)}
.tl-card ul li{
  position:relative;padding-left:20px;margin-bottom:9px;
  color:var(--ink-dim);font-size:14.5px;
}
.tl-card ul li::before{content:"▸";position:absolute;left:0;color:var(--cyan);font-size:12px;top:2px}
.tl-card ul li strong{color:var(--ink)}

/* ============================================================
   PROJECTS
   ============================================================ */
.proj{
  position:relative;border:1px solid var(--line);background:var(--bg-card);
  padding:34px 36px;transition:border-color .3s, box-shadow .3s, transform .3s;
}
.proj:hover{border-color:rgba(53,224,255,.35);transform:translateY(-3px);box-shadow:0 16px 48px rgba(0,0,0,.4)}
.proj-featured{
  margin-bottom:28px;
  background:
    linear-gradient(140deg,rgba(53,224,255,.05),transparent 45%),
    var(--bg-card);
}
.proj-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.proj-no{font-family:var(--font-mono);font-size:12px;color:var(--amber);letter-spacing:.2em}
.proj-status{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.18em;display:inline-flex;align-items:center;gap:7px}
.proj-status.live{color:var(--green)}
.proj-status.live i{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green);animation:blink 1.6s infinite}
.proj-status.done{color:var(--ink-faint)}
.proj h3{font-size:clamp(20px,2.4vw,27px);font-weight:900;letter-spacing:.03em;margin-bottom:12px}
.proj-en{font-family:var(--font-en);font-weight:600;font-size:.58em;color:var(--cyan);letter-spacing:.14em;margin-left:10px;vertical-align:middle}
.proj-desc{color:var(--ink-dim);font-size:14.5px;max-width:820px}

/* 3D tilt glare（.glare 由 tilt.js 注入，游標位置寫進 --gx/--gy） */
.proj .glare{
  position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .35s;
  background:radial-gradient(420px circle at var(--gx,50%) var(--gy,50%),rgba(53,224,255,.09),transparent 62%);
}
.proj:hover .glare{opacity:1}

/* pinned scrollytelling scene（.pin-on 由 scroll.js 在桌機掛上） */
.pin-scene{position:relative;margin-bottom:28px}
.pin-scene .proj-featured{margin-bottom:0}
.pin-scene.pin-on{height:260vh}
.pin-scene.pin-on .pin-sticky{position:sticky;top:80px}
.pin-scene.pin-on .pipe-node{
  opacity:.28;transition:opacity .45s,border-color .45s,box-shadow .45s,background .45s;
}
.pin-scene.pin-on .pipe-node.lit{
  opacity:1;border-color:var(--cyan);background:rgba(53,224,255,.1);
  box-shadow:0 0 22px rgba(53,224,255,.22);
}
.pin-scene.pin-on .pipe-arrow{opacity:.12;transition:opacity .45s;animation-play-state:paused}
.pin-scene.pin-on .pipe-arrow.lit{opacity:1;animation-play-state:running}
.pin-scene.pin-on .proj-metrics{opacity:.3;transition:opacity .6s}
.pin-scene.pin-on .proj-metrics.lit{opacity:1}

/* pipeline diagram */
.pipeline{
  display:flex;align-items:stretch;flex-wrap:wrap;gap:0;margin:26px 0 8px;
  font-family:var(--font-mono);
}
.pipe-node{
  display:flex;flex-direction:column;justify-content:center;
  border:1px solid rgba(53,224,255,.3);background:rgba(53,224,255,.05);
  padding:10px 16px;font-size:12.5px;color:var(--ink);letter-spacing:.04em;
  position:relative;
}
.pipe-node b{font-size:9.5px;color:var(--cyan);letter-spacing:.18em;font-weight:500;margin-top:3px}
.pipe-arrow{
  align-self:center;color:var(--cyan);padding:0 10px;font-size:13px;
  animation:flowPulse 1.6s ease-in-out infinite;
}
.pipe-arrow:nth-of-type(2){animation-delay:.2s}
.pipe-arrow:nth-of-type(4){animation-delay:.4s}
.pipe-arrow:nth-of-type(6){animation-delay:.6s}
.pipe-arrow:nth-of-type(8){animation-delay:.8s}
@keyframes flowPulse{0%,100%{opacity:.35}50%{opacity:1;text-shadow:0 0 12px var(--cyan)}}

/* metrics */
.proj-metrics{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(132px,1fr));
  gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);margin-top:24px;
}
.proj-metrics div{background:var(--bg-2);padding:16px 18px}
.proj-metrics b{
  display:block;font-family:var(--font-mono);font-size:22px;font-weight:700;color:var(--cyan);
}
.proj-metrics b i{font-style:normal;font-size:12px;color:var(--ink-dim);margin-left:4px;font-weight:400}
.proj-metrics span{font-family:var(--font-mono);font-size:10.5px;color:var(--ink-faint);letter-spacing:.08em}

.proj-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:28px}
.proj-grid .proj h3{font-size:20px}
.proj-mini-metrics{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.proj-mini-metrics span{
  font-family:var(--font-mono);font-size:11.5px;color:var(--amber);
  border:1px dashed rgba(255,180,84,.3);padding:4px 10px;
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:26px}
.skill-group{border:1px solid var(--line);background:var(--bg-card);padding:26px 28px;transition:border-color .3s}
.skill-group:hover{border-color:rgba(53,224,255,.3)}
.skill-group h4{
  font-family:var(--font-en);font-size:13px;font-weight:600;letter-spacing:.24em;
  color:var(--ink-dim);margin-bottom:18px;display:flex;align-items:center;gap:10px;
}
.sg-icon{color:var(--cyan);font-size:15px}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{
  font-family:var(--font-mono);font-size:12.5px;color:var(--ink-dim);
  border:1px solid var(--line);padding:6px 13px;transition:.2s;cursor:default;
}
.chip:hover{transform:translateY(-2px);color:var(--ink)}
.chip.hot{
  color:var(--cyan);border-color:rgba(53,224,255,.4);background:rgba(53,224,255,.06);
  font-weight:500;
}
.chip.hot:hover{box-shadow:0 0 16px rgba(53,224,255,.25)}

/* ============================================================
   AWARDS
   ============================================================ */
.award-featured{
  position:relative;display:flex;gap:30px;align-items:center;
  border:1px solid rgba(255,180,84,.3);
  background:linear-gradient(120deg,rgba(255,180,84,.06),transparent 55%),var(--bg-card);
  padding:36px 40px;margin-bottom:26px;
}
.award-featured .card-corner.tl{border-color:var(--amber)}
.award-featured .card-corner.br{border-color:var(--amber)}
.award-trophy{
  font-size:44px;color:var(--amber);flex-shrink:0;
  text-shadow:0 0 34px rgba(255,180,84,.5);
  animation:trophyFloat 3.6s ease-in-out infinite;
}
@keyframes trophyFloat{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-7px) rotate(6deg)}}
.award-tag{font-family:var(--font-mono);font-size:11px;color:var(--amber);letter-spacing:.24em}
.award-body h3{font-size:clamp(18px,2.2vw,24px);font-weight:900;margin:8px 0 10px;line-height:1.5}
.award-body h3 em{color:var(--amber);font-style:normal;margin-left:6px}
.award-body p{color:var(--ink-dim);font-size:14.5px;max-width:720px}

/* press link card */
.press-link{
  display:inline-flex;align-items:center;gap:14px;margin-top:20px;max-width:520px;
  border:1px solid var(--line);background:rgba(53,224,255,.03);
  padding:11px 15px;transition:border-color .2s, box-shadow .2s;
}
.press-link:hover{border-color:rgba(53,224,255,.4);box-shadow:0 0 18px rgba(53,224,255,.12)}
.press-badge{
  font-family:var(--font-mono);font-weight:700;font-size:10px;letter-spacing:.16em;
  color:var(--cyan);border:1px solid rgba(53,224,255,.35);padding:6px 9px;flex-shrink:0;
}
.press-meta{display:flex;flex-direction:column;gap:3px;min-width:0}
.press-title{font-size:13.5px;color:var(--ink);line-height:1.4}
.press-date{font-family:var(--font-mono);font-size:10.5px;color:var(--ink-faint);letter-spacing:.08em}
.press-arrow{margin-left:auto;color:var(--cyan);transition:transform .2s;flex-shrink:0}
.press-link:hover .press-arrow{transform:translate(3px,-3px)}

.cert-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.cert{
  border:1px solid var(--line);background:var(--bg-card);padding:16px 20px;
  display:flex;flex-direction:column;gap:4px;transition:border-color .3s;
}
.cert:hover{border-color:rgba(53,224,255,.3)}
.cert-k{font-family:var(--font-mono);font-size:10.5px;color:var(--cyan);letter-spacing:.2em}
.cert-v{font-size:13.5px;color:var(--ink-dim)}

/* ============================================================
   CONTACT
   ============================================================ */
.section-contact{padding-top:140px;padding-bottom:120px;text-align:left}
.contact-inner{border:1px solid var(--line);background:
  radial-gradient(ellipse 60% 80% at 70% 20%,rgba(53,224,255,.07),transparent),
  var(--bg-card);
  padding:64px 56px;position:relative;overflow:hidden;
}
.contact-inner::after{
  content:"◢";position:absolute;right:-30px;bottom:-60px;font-size:220px;
  color:rgba(53,224,255,.05);pointer-events:none;
}
/* wireframe globe（three.js，globe.js 驅動） */
.globe-wrap{
  position:absolute;right:44px;top:50%;transform:translateY(-50%);
  display:flex;flex-direction:column;align-items:center;gap:4px;pointer-events:none;
}
.globe-canvas{width:300px;height:300px;display:block}
@media (max-width:1080px){.globe-wrap{display:none}}
.contact-title{font-size:clamp(34px,5vw,56px);font-weight:900;margin:16px 0 34px;line-height:1.25}
.contact-sub{font-size:.45em;font-weight:500;color:var(--ink-dim);letter-spacing:.02em}
.contact-mail{
  display:inline-flex;align-items:center;gap:14px;
  font-family:var(--font-mono);font-size:clamp(17px,2.6vw,26px);font-weight:700;
  color:var(--cyan);border-bottom:2px solid rgba(53,224,255,.4);
  padding-bottom:8px;transition:.25s;letter-spacing:.02em;
}
.contact-mail:hover{border-color:var(--cyan);text-shadow:0 0 24px rgba(53,224,255,.5)}
.mail-arrow{transition:transform .25s}
.contact-mail:hover .mail-arrow{transform:translate(4px,-4px)}
.contact-git{
  display:flex;align-items:center;gap:10px;margin-top:20px;width:fit-content;
  font-family:var(--font-mono);font-size:clamp(13px,1.6vw,16px);
  color:var(--ink-dim);letter-spacing:.02em;transition:.25s;
}
.contact-git:hover{color:var(--cyan)}
.contact-git:hover .mail-arrow{transform:translate(4px,-4px)}
.contact-meta{margin-top:36px;font-family:var(--font-mono);font-size:12.5px;color:var(--ink-faint);letter-spacing:.06em;display:flex;flex-wrap:wrap;gap:12px}
.contact-meta .sep{color:var(--cyan);opacity:.4}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{
  position:relative;z-index:2;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  max-width:var(--max-w);margin:0 auto;
  padding:28px 32px 34px calc(var(--rail-w) + 40px);
  border-top:1px solid var(--line-soft);
  font-family:var(--font-mono);font-size:11px;color:var(--ink-faint);letter-spacing:.1em;
}
.footer a:hover{color:var(--cyan)}
.footer-mono{opacity:.7}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px){
  :root{--rail-w:0px}
  .rail{display:none}
  .hero-inner,.section,.footer{padding-left:24px;padding-right:24px}
  .about-grid{grid-template-columns:1fr}
  .about-card{position:static}
  .hero-stats{grid-template-columns:repeat(2,1fr);width:calc(100% - 48px)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line-soft)}
  .nav-links{
    position:fixed;top:64px;right:0;left:0;
    flex-direction:column;align-items:flex-start;gap:0;
    background:rgba(5,8,16,.97);border-bottom:1px solid var(--line);
    padding:12px 24px;display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:14px 0;width:100%;border-bottom:1px dashed var(--line-soft);font-size:14px}
  .nav-links a:last-child{border-bottom:0}
  .nav-cta{border:0;padding:14px 0}
  .nav-burger{display:flex}
  .award-featured{flex-direction:column;align-items:flex-start;gap:16px;padding:28px}
  .pipeline{flex-direction:column;align-items:stretch}
  .pipe-arrow{transform:rotate(90deg);padding:6px 0;align-self:center}
  .contact-inner{padding:40px 28px}
  .proj{padding:26px 24px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}