:root{--bg:#031426;--panel:#0b2943;--panel2:#103956;--line:#28516e;--text:#f5f8fc;--muted:#b8cad8;--accent:#36a5e6;--gold:#ffcb3c}*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Arial,"Noto Sans TC",sans-serif;background:radial-gradient(circle at 75% 25%,#123f61 0,#071d33 38%,#020d19 100%);color:var(--text)}body{min-height:100vh;display:flex;flex-direction:column}.neutral-header{position:sticky;top:0;z-index:20;height:88px;padding:0 24px;display:flex;align-items:center;justify-content:space-between;background:rgba(2,14,27,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.neutral-header img{height:48px}.neutral-header>div{display:flex;align-items:center;gap:24px}.neutral-header a{color:var(--text);text-decoration:none;font-weight:700}.neutral-header nav{display:flex;border:1px solid var(--line);border-radius:24px;padding:3px}.neutral-header nav a{padding:9px 14px;border-radius:20px;color:var(--muted)}.neutral-header nav a.active{background:#fff;color:#08223a}.access-shell{flex:1;display:grid;place-items:center;padding:64px 20px}.access-shell section{width:min(760px,100%);padding:56px;border:1px solid var(--line);border-radius:28px;background:linear-gradient(145deg,rgba(16,57,86,.95),rgba(6,29,49,.96));box-shadow:0 28px 80px rgba(0,0,0,.38);text-align:center}.access-shell span{color:#7bd0ff;font-weight:800;letter-spacing:.12em}.access-shell h1{font-size:clamp(42px,7vw,76px);margin:18px 0}.access-shell p{font-size:20px;line-height:1.7;color:var(--muted);margin:0 auto 34px}.actions{display:grid;grid-template-columns:1fr 1fr;gap:14px}.actions a{padding:17px;border:1px solid #6f9dba;border-radius:14px;color:var(--text);text-decoration:none;font-weight:800}.actions a.primary{background:#1680bf;border-color:#1680bf}.access-shell small{display:block;margin-top:28px;color:#91a9ba;line-height:1.6}footer{text-align:center;padding:20px;color:#7894a8}@media(max-width:650px){.neutral-header{height:72px;padding:0 14px}.neutral-header img{height:36px}.neutral-header>div>a{display:none}.access-shell section{padding:34px 20px}.actions{grid-template-columns:1fr}}