:root{
  --deep:#0a2540; --sea:#0e4d64; --teal:#12a4a0; --aqua:#2ee6c5; --gold:#ffc145; --coral:#ff6b57;
  --bg:#f3f7fa; --surface:#ffffff; --text:#0f2233; --muted:#526477; --line:#dbe5ec;
  --head:'Avenir Next','Segoe UI',system-ui,-apple-system,'PingFang TC','Microsoft JhengHei','Noto Sans TC',sans-serif;
  --body:system-ui,-apple-system,'Segoe UI',Roboto,Arial,'PingFang TC','Microsoft JhengHei','Noto Sans TC',sans-serif;
}
@media (prefers-color-scheme: dark){
  :root{ --bg:#071a2c; --surface:#0d2a42; --text:#e8f1f7; --muted:#9db3c4; --line:#1b3d58; }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--body);font-size:17px;line-height:1.6}
html[data-lang="zh"] body{font-size:17.5px;line-height:1.75}
a{color:inherit}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}

/* language switching */
html[data-lang="en"] [lang="zh-Hant"]{display:none!important}
html[data-lang="zh"] [lang="en"]{display:none!important}

/* top bar */
.topbar{position:sticky;top:0;z-index:20;background:rgba(10,37,64,.82);backdrop-filter:saturate(160%) blur(12px);-webkit-backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid rgba(255,255,255,.08)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:12px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-family:var(--head);font-weight:800;font-size:20px;letter-spacing:.01em}
.mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--sea),var(--teal));display:grid;place-items:center;color:var(--gold);font-weight:800;font-size:19px;box-shadow:0 0 0 1px rgba(255,255,255,.15) inset}
.tabs{display:flex;background:rgba(255,255,255,.1);border-radius:999px;padding:4px;gap:2px}
.tab{appearance:none;border:0;background:transparent;color:#cfe3ee;font:600 15px/1 var(--body);padding:9px 16px;border-radius:999px;cursor:pointer;transition:background .2s,color .2s}
.tab[aria-selected="true"]{background:#fff;color:var(--deep)}
.tab:focus-visible{outline:2px solid var(--gold);outline-offset:2px}

/* hero */
.hero{position:relative;overflow:hidden;color:#fff;background:linear-gradient(135deg,var(--deep) 0%,var(--sea) 50%,var(--teal) 100%);padding:84px 0 150px;isolation:isolate}
.orb{position:absolute;border-radius:50%;filter:blur(60px);opacity:.55;z-index:-1}
.orb.a{width:420px;height:420px;background:var(--aqua);top:-140px;right:-80px;animation:float 14s ease-in-out infinite}
.orb.b{width:320px;height:320px;background:var(--gold);bottom:-60px;left:-120px;opacity:.28;animation:float 18s ease-in-out infinite reverse}
@keyframes float{50%{transform:translate(-30px,30px) scale(1.06)}}
.badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);padding:7px 14px;border-radius:999px;font-weight:600;font-size:14px;letter-spacing:.06em;text-transform:uppercase}
.badge i{width:8px;height:8px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 0 rgba(255,193,69,.7);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 10px rgba(255,193,69,0)}100%{box-shadow:0 0 0 0 rgba(255,193,69,0)}}
.hero h1{font-family:var(--head);font-weight:800;font-size:clamp(40px,7.4vw,78px);line-height:1.02;letter-spacing:-.02em;margin:22px 0 18px;max-width:900px}
.hero h1 .hl{background:linear-gradient(90deg,var(--gold),#ffe39a 40%,var(--aqua));-webkit-background-clip:text;background-clip:text;color:transparent}
.pillars{display:flex;flex-wrap:wrap;gap:10px 22px;font-family:var(--head);font-weight:700;font-size:clamp(18px,2.6vw,24px);margin:0 0 32px}
.pillars span{display:inline-flex;align-items:center;gap:10px}
.pillars span::before{content:"";width:10px;height:10px;border-radius:3px;background:var(--gold);transform:rotate(45deg)}
.cta{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:8px;font:600 16px/1 var(--body);padding:15px 22px;border-radius:12px;text-decoration:none;cursor:pointer;border:0;transition:transform .15s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn.primary{background:var(--gold);color:var(--deep);box-shadow:0 10px 30px -8px rgba(255,193,69,.6)}
.btn.ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.3)}
.btn:focus-visible{outline:3px solid var(--aqua);outline-offset:2px}
.address{margin-top:28px;color:#bfe1ea;font-size:15px}
.waves{position:absolute;left:0;right:0;bottom:-2px;height:120px;z-index:-1}
.waves svg{position:absolute;bottom:0;width:200%;height:100%}
.waves .w1{animation:drift 16s linear infinite;opacity:.35}
.waves .w2{animation:drift 11s linear infinite reverse;opacity:.6}
.waves .w3{fill:var(--bg)}
@keyframes drift{to{transform:translateX(-50%)}}

/* sections */
section{padding:56px 0}
.kicker{font:700 13px/1 var(--body);letter-spacing:.16em;text-transform:uppercase;color:var(--teal);margin:0 0 10px}
h2{font-family:var(--head);font-weight:800;font-size:clamp(28px,4.4vw,42px);line-height:1.1;letter-spacing:-.01em;margin:0 0 28px}
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:26px;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px -20px rgba(10,37,64,.35)}
.icon{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;margin-bottom:16px;color:#fff}
.icon svg{width:26px;height:26px}
.i1{background:linear-gradient(135deg,var(--teal),var(--aqua))}
.i2{background:linear-gradient(135deg,var(--sea),#3b82c4)}
.i3{background:linear-gradient(135deg,var(--coral),var(--gold))}
.card h3{font-family:var(--head);font-size:23px;margin:0 0 6px}
.card p{margin:0;color:var(--muted)}

/* bear with us */
.soon{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:30px;display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:center}
.soon .big{font-size:44px;line-height:1}
.soon h3{font-family:var(--head);font-size:26px;margin:0 0 6px}
.soon p{margin:0 0 16px;color:var(--muted)}
.bar{height:10px;border-radius:99px;background:var(--line);overflow:hidden}
.bar i{display:block;height:100%;width:35%;border-radius:99px;background:linear-gradient(90deg,var(--teal),var(--aqua),var(--gold));background-size:200% 100%;animation:shimmer 3s linear infinite}
@keyframes shimmer{to{background-position:-200% 0}}
.bar-label{margin-top:8px;font-size:14px;font-weight:600;color:var(--teal)}

/* CC band */
.cc{position:relative;overflow:hidden;border-radius:24px;padding:40px;color:#fff;background:linear-gradient(120deg,var(--deep),var(--sea) 60%,var(--teal));box-shadow:0 30px 60px -30px rgba(10,37,64,.6)}
.cc::after{content:"";position:absolute;width:300px;height:300px;right:-90px;top:-90px;border-radius:50%;background:radial-gradient(circle,rgba(46,230,197,.45),transparent 70%)}
.cc>*{position:relative;z-index:1}
.cc::after{z-index:0;pointer-events:none}
.cc h2{margin-bottom:10px;color:#fff}
.cc p{margin:0 0 22px;max-width:640px;color:#d6edf2;font-size:18px}
.chip{display:inline-flex;flex-wrap:wrap;align-items:center;gap:10px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);border-radius:16px;padding:10px 10px 10px 18px;position:relative;z-index:1}
.chip a{font:700 clamp(17px,3.4vw,24px)/1.2 var(--head);color:var(--gold);text-decoration:none;word-break:break-all}
.chip a:hover{text-decoration:underline}
.copy{background:#fff;color:var(--deep);padding:11px 16px;font-size:15px}
.copy.done{background:var(--aqua)}

/* help grid */
.help{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.help .card{display:flex;flex-direction:column}
.help .card p{flex:1;margin-bottom:18px}
.num{font:800 15px/1 var(--head);color:var(--teal);margin-bottom:10px;letter-spacing:.08em}
.btn.line{align-self:flex-start;background:transparent;color:var(--sea);border:2px solid var(--sea);padding:11px 16px;font-size:15px}
.btn.line:hover{background:var(--sea);color:#fff}
@media (prefers-color-scheme: dark){ .btn.line{color:var(--aqua);border-color:var(--aqua)} .btn.line:hover{background:var(--aqua);color:var(--deep)} }

footer{padding:36px 0 48px;color:var(--muted);font-size:14.5px;border-top:1px solid var(--line)}
footer .sig{font-family:var(--head);font-weight:800;font-size:20px;color:var(--text);margin:0 0 6px}
footer p{margin:0 0 4px}
.note{margin-top:12px;font-size:13.5px}

/* reveal on scroll (only when JS runs) */
html.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
html.js .reveal.in{opacity:1;transform:none}

@media (max-width:820px){
  .values,.help{grid-template-columns:1fr}
  .hero{padding:56px 0 120px}
  .soon{grid-template-columns:1fr;padding:24px}
  .cc{padding:28px 22px}
  section{padding:44px 0}
}
@media (max-width:420px){
  .brand span.name{display:none}
  .tab{padding:9px 13px}
}
@media print{
  @page{size:A4;margin:0}
  *{-webkit-print-color-adjust:exact;print-color-adjust:exact;animation:none!important;transition:none!important}
  html.js .reveal{opacity:1;transform:none}
  .topbar{position:static}
  .card,.soon,.cc{break-inside:avoid}
  .hero{padding:60px 0 130px}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  html.js .reveal{opacity:1;transform:none}
}