:root{font-family:Inter,"Noto Sans TC",system-ui,-apple-system,sans-serif;color:#152238;background:#f4f7fb}*{box-sizing:border-box}body{margin:0}.auth-page{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#071c38,#123b70)}.auth-card{width:min(420px,92vw);background:#fff;border-radius:18px;padding:32px;box-shadow:0 24px 70px #0004}.brand{font-size:22px;font-weight:800;color:#0b2d59}.brand span{color:#2675d8}.auth-card h1{margin:16px 0 6px}.auth-card p{color:#66758c}.auth-card form{display:grid;gap:16px;margin:24px 0}.auth-card label{display:grid;gap:7px;font-weight:700}.auth-card input{width:100%;padding:12px 14px;border:1px solid #ccd7e5;border-radius:10px;font-size:16px}.auth-card button,.button{border:0;border-radius:10px;background:#1358a8;color:white;padding:12px 18px;font-weight:800;cursor:pointer}.alert{padding:10px 12px;background:#fff1f1;border:1px solid #f2c8c8;border-radius:10px;color:#9b1c1c}.site-head{height:64px;background:#0a2344;color:white;display:flex;align-items:center;justify-content:space-between;padding:0 24px}.site-head>div{display:flex;gap:12px;align-items:baseline}.site-head b{font-size:20px}.site-head span{opacity:.8}.site-head nav{display:flex;align-items:center;gap:18px}.site-head a{color:white;text-decoration:none}.site-main{max-width:1180px;margin:0 auto;padding:24px}.site-main .hero{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.site-main .hero h1{margin:0 0 6px;font-size:30px}.site-main .hero p{margin:0;color:#66758c}.ai-site .card{background:white;border:1px solid #d9e3ef;border-radius:16px;box-shadow:0 8px 28px #173b6d12}@media(max-width:720px){.site-head{padding:0 14px}.site-head nav span{display:none}.site-main{padding:12px}.site-main .hero{align-items:flex-start;gap:12px}.site-main .hero h1{font-size:24px}}