:root{color-scheme:dark;--bg:#0b1011;--surface:#12191b;--line:#273236;--text:#edf3f1;--muted:#95a5a5;--accent:#8bdfba}
*{box-sizing:border-box}body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--text);background:var(--bg)}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:5px}
.portal{min-height:100dvh;background:radial-gradient(ellipse at 82% 4%,#17302d55,transparent 46%),var(--bg)}.portal-shell{width:min(1120px,calc(100% - 80px));margin:auto;min-height:100dvh;display:flex;flex-direction:column}.portal-header{display:flex;align-items:center;justify-content:space-between;padding:34px 0;border-bottom:1px solid var(--line)}.wordmark{display:inline-flex;align-items:center;gap:12px;font-size:13px;font-weight:700;letter-spacing:2px}.brand-symbol{display:grid;place-items:center;background:var(--accent);color:#10201b;width:30px;height:30px;border-radius:8px;font-size:25px;letter-spacing:0}.quiet-button{border:0;background:none;color:var(--muted);padding:10px;font-size:13px}.quiet-button:hover{color:var(--text)}.quiet-button span{margin-left:12px}.portal-main{flex:1;padding:64px 0 56px}.eyebrow{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:12px;letter-spacing:1px}.signal-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent)}.intro h1{margin:18px 0 12px;font-size:clamp(36px,4.2vw,56px);font-weight:650;letter-spacing:-2px;line-height:1.18}.title-dot{color:var(--accent);padding-left:3px}.intro p{margin:0;color:var(--muted);font-size:15px}.destination-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:42px}.destination-card{--card-accent:#8bdfba;display:flex;flex-direction:column;min-width:0;padding:26px 28px 0;border:1px solid var(--line);border-radius:16px;background:linear-gradient(145deg,#182320,#12191b 65%);transition:transform .2s,border-color .2s}.airport-card{--card-accent:#8acedd;background:linear-gradient(145deg,#172327,#12191b 65%)}.destination-card:hover{border-color:var(--card-accent);transform:translateY(-4px)}.card-top{display:flex;align-items:center;justify-content:space-between;color:var(--muted)}.card-index{font-size:11px;letter-spacing:1.8px}.card-arrow{display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--line);border-radius:50%;color:var(--card-accent);font-size:22px}.card-art{height:160px;position:relative;display:flex;align-items:center;justify-content:center}.card-art svg{width:250px;height:116px;fill:none;stroke:var(--card-accent);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;opacity:.85}.card-art .rail,.air-path{opacity:.3}.art-label{position:absolute;bottom:12px;right:0;font-size:10px;color:var(--muted);letter-spacing:2px}.card-copy h2{font-size:27px;font-weight:600;letter-spacing:1px;margin:12px 0}.card-copy p{font-size:13px;color:var(--muted);margin:0 0 28px}.card-bottom{margin-top:auto;display:flex;justify-content:space-between;align-items:center;gap:12px;border-top:1px solid var(--line);padding:20px 0;font-size:12px;color:var(--muted)}.card-bottom>span:last-child{color:var(--card-accent)}.card-bottom>span:last-child span{margin-left:10px}.portal-footer{display:flex;justify-content:space-between;gap:12px;color:#768988;font-size:11px;padding:22px 0 26px;border-top:1px solid var(--line)}
.login-page{display:grid;place-items:center;padding:36px 20px}.login-shell{width:min(100%,380px)}.login-card{padding:36px;border:1px solid var(--line);border-radius:18px;background:#131b1cee;box-shadow:0 28px 70px #0003}.login-kicker{display:flex;justify-content:center;align-items:center;gap:8px;color:var(--muted);font-size:10px;letter-spacing:2px}.login-card h1{font-size:30px;font-weight:600;letter-spacing:1px;margin:14px 0 10px;text-align:center}.login-description{margin:0 0 26px;text-align:center;color:var(--muted);font-size:13px;line-height:1.8}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}.login-card input[type=password]{width:100%;height:48px;border:1px solid #354341;border-radius:7px;background:#0c1213;color:var(--text);padding:0 14px}.login-card input[aria-invalid=true]{border-color:#dd8e84}.login-button{display:flex;justify-content:center;align-items:center;text-align:center;width:100%;border:0;border-radius:7px;background:var(--accent);color:#10281e;padding:15px 17px;margin-top:18px;font-size:14px;font-weight:650}.login-button:hover{background:#a3edca}.login-error{font-size:12px;color:#ffa396;margin-top:12px;line-height:1.5}.login-card input::placeholder{color:#7f9590;opacity:1}
@media(max-width:640px){.portal-shell{width:calc(100% - 36px)}.portal-header{padding:23px 0}.wordmark{font-size:11px;letter-spacing:1.5px;gap:9px}.portal-main{padding:34px 0}.intro h1{font-size:38px;letter-spacing:-1px}.intro p{font-size:13px}.destination-grid{grid-template-columns:1fr;gap:18px;margin-top:28px}.destination-card{padding:20px 22px 0}.card-art{height:110px}.card-art svg{height:95px}.card-copy h2{font-size:24px;margin:8px 0}.card-copy p{margin-bottom:20px}.card-bottom{padding:17px 0}.portal-footer{flex-direction:column;gap:8px}.login-card{padding:28px}.login-card h1{font-size:28px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}