:root{
  --brand:#0B7285;         /* Teal */
  --brand2:#0A4D5A;        /* Deep teal */
  --accent:#22C3A6;        /* Cyan-green */
  --warn:#F59E0B;          /* Safety orange */
  --ink:#0B1220;
  --muted:#4B5563;
  --bg:#F3F5F7;
  --bg2:#ECEFF3;
  --card:#FFFFFF;
  --radius:20px;
  --shadow:0 18px 42px rgba(15,23,42,.10);
  --shadow2:0 10px 20px rgba(15,23,42,.10);
  --ring:0 0 0 4px rgba(34,195,166,.22);
  --border:rgba(15,23,42,.12);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;
  color:var(--ink);
  background:
    linear-gradient(0deg, rgba(255,255,255,.55), rgba(255,255,255,.55)),
    repeating-linear-gradient(90deg, rgba(11,18,32,.035) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(0deg, rgba(11,18,32,.03) 0 1px, transparent 1px 28px),
    radial-gradient(900px 340px at 14% 0%, rgba(34,195,166,.12), rgba(255,255,255,0) 60%),
    radial-gradient(900px 340px at 86% 12%, rgba(11,114,133,.10), rgba(255,255,255,0) 62%),
    var(--bg);
  line-height:1.6;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1120px;margin:0 auto;padding:0 18px}

/* Accessibility */
.skip{
  position:absolute;left:14px;top:12px;
  padding:10px 12px;border-radius:14px;
  background:#fff;border:1px solid var(--border);
  box-shadow:var(--shadow2);
  transform:translateY(-160%);
  z-index:1000;
}
.skip:focus{transform:translateY(0);outline:none;box-shadow:var(--shadow2),var(--ring)}

/* Header */
.header{
  position:sticky;top:0;z-index:50;
  background:rgba(243,245,247,.72);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid rgba(15,23,42,.10);
}
.nav{display:flex;align-items:center;gap:14px;padding:12px 0}
.brand{
  display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;
  column-gap:10px;row-gap:2px;align-items:center;
  min-width:220px;
}
.brand-logo{grid-row:1/3}
.brand-logo img{width:38px;height:38px;border-radius:12px;border:1px solid var(--border);background:#fff;box-shadow:0 6px 14px rgba(15,23,42,.08)}
.brand-name{font-weight:950;letter-spacing:-.2px;line-height:1.1}
.brand-sub{font-size:12px;color:rgba(17,24,39,.66);line-height:1.2}
.menu{display:flex;gap:12px;margin-left:10px;flex:1;align-items:center}
.menu a{
  padding:10px 12px;border-radius:999px;
  color:rgba(17,24,39,.78);
  border:1px solid transparent;
  transition:transform .15s ease, background .15s ease, border-color .15s ease;
}
.menu a:hover{background:rgba(255,255,255,.72);border-color:rgba(15,23,42,.10);transform:translateY(-1px)}
.menu a.active{background:#fff;border-color:rgba(34,195,166,.28);box-shadow:0 8px 18px rgba(15,23,42,.08)}
.cta{display:flex;gap:10px;align-items:center}
.iconbtn{
  display:none;
  width:44px;height:44px;border-radius:14px;
  background:#fff;border:1px solid rgba(15,23,42,.12);
  box-shadow:0 8px 18px rgba(15,23,42,.08);
  font-size:20px;cursor:pointer;
}
.iconbtn:focus{outline:none;box-shadow:0 8px 18px rgba(15,23,42,.08),var(--ring)}

/* Mobile menu */
.mobilemenu{
  display:none;
  padding:10px 0 14px;
}
.mobilemenu a{
  display:block;padding:12px 12px;border-radius:14px;
  background:rgba(255,255,255,.6);
  border:1px solid rgba(15,23,42,.10);
  margin:10px 0;
}
.mobilemenu .mcta{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.mobilemenu.show{display:block}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 14px;border-radius:999px;
  border:1px solid rgba(15,23,42,.14);
  background:rgba(255,255,255,.70);
  box-shadow:0 10px 18px rgba(15,23,42,.08);
  font-weight:850;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px);box-shadow:0 14px 26px rgba(15,23,42,.12)}
.btn:active{transform:translateY(0)}
.btn.primary{
  background:linear-gradient(180deg, rgba(34,195,166,1), rgba(11,114,133,1));
  color:#fff;border-color:rgba(0,0,0,.06);
}
.btn.ghost{
  background:rgba(255,255,255,.55);
}
.btn:focus{outline:none;box-shadow:0 14px 26px rgba(15,23,42,.12),var(--ring)}

/* Typography */
.kicker{
  display:inline-flex;gap:8px;align-items:center;
  font-weight:950;color:var(--brand2);
  padding:8px 12px;border-radius:999px;
  background:rgba(255,255,255,.70);
  border:1px solid rgba(15,23,42,.10);
  box-shadow:0 10px 18px rgba(15,23,42,.08);
}
.h1{font-size:clamp(32px, 4.2vw, 48px);line-height:1.07;margin:14px 0 10px;letter-spacing:-.6px}
.h2{font-size:clamp(22px, 2.6vw, 30px);line-height:1.15;margin:0 0 10px;letter-spacing:-.35px}
.h3{font-size:18px;margin:0 0 6px}
.p{color:rgba(17,24,39,.74);font-size:16.5px;line-height:1.8;margin:0 0 18px}
.lead{color:rgba(17,24,39,.74);margin:0 0 18px}
.small{font-size:13px;color:rgba(17,24,39,.66)}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace}

/* Layout sections */
.section{padding:64px 0}
.section.tight{padding:44px 0}
.section.alt{background:rgba(255,255,255,.45);border-top:1px solid rgba(15,23,42,.08);border-bottom:1px solid rgba(15,23,42,.08)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.section-head .meta{max-width:720px}
.hr{height:1px;background:rgba(17,24,39,.10);margin:16px 0}

/* Cards & grids */
.card{
  background:linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.75));
  border:1px solid rgba(15,23,42,.12);
  border-radius:var(--radius);
  box-shadow:var(--shadow2);
  padding:18px;
}
.card.soft{background:rgba(255,255,255,.70)}
.item h3{margin:0 0 8px;font-size:18px}
.item p{margin:0;color:rgba(17,24,39,.72);line-height:1.7}

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

.pillrow{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 12px;border-radius:999px;
  background:rgba(255,255,255,.70);
  border:1px solid rgba(15,23,42,.10);
  color:rgba(17,24,39,.72);
  font-weight:800;font-size:13px;
}

/* Hero */
.hero{
  padding:56px 0 34px;
  background:
    radial-gradient(900px 380px at 16% 0%, rgba(34,195,166,.16), rgba(255,255,255,0) 62%),
    radial-gradient(900px 380px at 86% 6%, rgba(11,114,133,.14), rgba(255,255,255,0) 62%),
    linear-gradient(180deg, rgba(255,255,255,.35), rgba(255,255,255,0));
}
.herogrid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:center}
.herocard{padding:16px}
.kv{
  height:250px;border-radius:18px;overflow:hidden;
  background:linear-gradient(180deg, rgba(11,114,133,.12), rgba(34,195,166,.08)), var(--bg2);
  display:flex;align-items:center;justify-content:center;
  color:rgba(17,24,39,.55);font-weight:950;
  border:1px solid rgba(15,23,42,.10);
}
.kv img{width:100%;height:100%;object-fit:cover;transform:scale(1.02)}
.kv a{display:block;width:100%;height:100%}
.kv-label{
  position:absolute;left:14px;bottom:14px;
  padding:8px 10px;border-radius:12px;
  background:rgba(11,18,32,.72);color:#fff;
  border:1px solid rgba(255,255,255,.10);
  font-size:12px;font-weight:850;
}
.kv-wrap{position:relative}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.badge{
  background:rgba(255,255,255,.75);
  border:1px solid rgba(15,23,42,.10);
  border-radius:999px;
  padding:8px 12px;
  font-weight:850;font-size:13px;
  box-shadow:0 8px 18px rgba(15,23,42,.08);
}

/* Projects / cards with image */
.pcard{
  padding:0;overflow:hidden;
}
.pimg{aspect-ratio:16/10;background:var(--bg2);border-bottom:1px solid rgba(15,23,42,.10);position:relative}
.pimg img{width:100%;height:100%;object-fit:cover}
.pbody{padding:16px 16px 18px}
.pmeta{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 10px;border-radius:999px;
  border:1px solid rgba(15,23,42,.12);
  background:rgba(255,255,255,.72);
  font-size:12.5px;font-weight:850;color:rgba(17,24,39,.72)
}
.tag.warn{border-color:rgba(245,158,11,.35);background:rgba(245,158,11,.14)}

/* Gallery */
.gallery{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:12px;
}
.gitem{grid-column:span 4;border-radius:18px;overflow:hidden;border:1px solid rgba(15,23,42,.12);background:#fff;box-shadow:0 10px 20px rgba(15,23,42,.08)}
.gitem img{width:100%;height:220px;object-fit:cover}
.gitem.wide{grid-column:span 6}
.gcap{padding:10px 12px;font-weight:850;font-size:13px;color:rgba(17,24,39,.78)}

/* Notice / panels */
.notice{
  background:
    radial-gradient(900px 220px at 14% 0%, rgba(34,195,166,.18), rgba(255,255,255,0) 62%),
    rgba(255,255,255,.70);
  border:1px solid rgba(34,195,166,.22);
  border-radius:var(--radius);
  padding:16px;
}

/* Footer */
.footer{
  padding:34px 0 56px;
  border-top:1px solid rgba(15,23,42,.10);
  background:rgba(255,255,255,.44);
}
.footgrid{display:grid;grid-template-columns:1.3fr .7fr 1fr;gap:18px;align-items:start}
.foottitle{font-weight:950;margin-bottom:10px}
.footlink{display:block;padding:8px 0;color:rgba(17,24,39,.76)}
.footlink:hover{text-decoration:underline}
.footbrand{display:flex;align-items:center;gap:10px}
.footbrand img{width:40px;height:40px;border-radius:14px;border:1px solid rgba(15,23,42,.12);background:#fff}
.footbottom{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:18px;padding-top:14px;border-top:1px solid rgba(15,23,42,.10)}

/* Floating contact bar (injected by JS) */
.floatline{
  position:fixed;right:16px;bottom:16px;z-index:60;
  display:flex;gap:10px;
}
.fbtn{
  display:inline-flex;align-items:center;justify-content:center;
  width:56px;height:56px;border-radius:18px;
  background:rgba(255,255,255,.78);
  border:1px solid rgba(15,23,42,.12);
  box-shadow:var(--shadow);
  font-weight:950;
}
.fbtn.primary{
  background:linear-gradient(180deg, rgba(34,195,166,1), rgba(11,114,133,1));
  color:#fff;border-color:rgba(0,0,0,.06)
}

/* Lightbox */
.lb{
  position:fixed;inset:0;z-index:80;
  background:rgba(2,6,23,.72);
  display:none;align-items:center;justify-content:center;
  padding:20px;
}
.lb.show{display:flex}
.lb img{
  max-width:min(1080px, 96vw);
  max-height:86vh;border-radius:18px;
  box-shadow:0 22px 60px rgba(0,0,0,.45);
}
.lb .close{
  position:absolute;top:18px;right:18px;
  width:44px;height:44px;border-radius:14px;
  background:rgba(255,255,255,.15);
  border:1px solid rgba(255,255,255,.20);
  color:#fff;font-size:18px;font-weight:950;
  cursor:pointer;
}

/* Forms */
input,textarea,select{
  width:100%;
  padding:12px 12px;border-radius:16px;
  border:1px solid rgba(15,23,42,.14);
  background:rgba(255,255,255,.80);
  font:inherit;
}
label{font-weight:900;font-size:13px;color:rgba(17,24,39,.80)}
textarea{min-height:120px;resize:vertical}
input:focus,textarea:focus,select:focus{outline:none;box-shadow:var(--ring);border-color:rgba(34,195,166,.38)}
.formrow{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.formactions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

/* Responsive */
@media (max-width: 980px){
  .herogrid{grid-template-columns:1fr;gap:14px}
  .grid3{grid-template-columns:1fr 1fr}
  .footgrid{grid-template-columns:1fr 1fr}
  .menu{display:none}
  .iconbtn{display:inline-flex}
}
@media (max-width: 640px){
  .grid2{grid-template-columns:1fr}
  .grid3{grid-template-columns:1fr}
  .grid4{grid-template-columns:1fr 1fr}
  .formrow{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(6,1fr)}
  .gitem{grid-column:span 6}
  .gitem.wide{grid-column:span 6}
  .gitem img{height:220px}
  .floatline{right:12px;bottom:12px}
}