*{box-sizing:border-box}body{margin:0;font-family:Arial,Noto Sans TC,sans-serif;background:#f3f6fa;color:#24344d}button,input{font:inherit}.login-page{min-height:100vh;display:flex;justify-content:center;align-items:center;padding:24px;background:linear-gradient(135deg,#17365d,#315b83)}.login-card{width:100%;max-width:440px;padding:42px 34px;border-radius:20px;background:#fff;box-shadow:0 18px 55px #0000002e}.brand-mark{width:58px;height:58px;display:grid;place-items:center;border-radius:16px;background:#17365d;color:#fff;font-size:28px;font-weight:700}.eyebrow{margin-top:25px;color:#66809e;font-size:11px;letter-spacing:2px}.login-card h1{margin-bottom:8px;color:#17365d;font-size:27px}.subtitle{color:#718096;margin-bottom:30px}.login-card label{display:block;margin:18px 0 8px;font-weight:600;font-size:14px}.login-card input{width:100%;padding:14px;border:1px solid #d7e0eb;border-radius:9px;outline:none}.login-card input:focus{border-color:#315b83}.login-card button,.logout{border:none;border-radius:9px;padding:14px;cursor:pointer;background:#17365d;color:#fff}.login-card form button{width:100%;margin-top:25px;font-weight:700}.login-card button:disabled{opacity:.6;cursor:wait}.login-note{margin-top:25px;text-align:center;color:#8795a7;font-size:12px}.error{color:#c0392b;font-size:13px}.dashboard{min-height:100vh;padding:28px;max-width:1100px;margin:auto}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:24px;border-bottom:1px solid #dce4ed}.topbar h1{color:#17365d;margin-bottom:5px}.topbar p{color:#718096;margin:0}.welcome,.summary{background:#fff;border-radius:15px;padding:25px;margin-top:24px;box-shadow:0 4px 15px #1e37500d}.welcome h2{color:#17365d}.welcome span{color:#287b58;font-weight:700}.admin-panel{margin-top:25px;padding:20px;border-radius:12px;background:#edf3f9}@media(max-width:600px){.login-card{padding:30px 22px}.login-card h1{font-size:23px}.dashboard{padding:16px}.topbar{align-items:flex-start}}