.login-form{max-width:720px;margin:30px auto;padding:50px 130px;box-sizing:border-box;background-color:rgba(255,255,255,.85);border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,.1);position:relative}.login-avatar{text-align:center;margin-bottom:20px}.login-avatar img{width:80px;height:80px;border-radius:50%;object-fit:cover;box-shadow:0 2px 8px rgba(0,0,0,.1)}.login-form h2{text-align:center;margin-bottom:20px;color:#333}.error-message{text-align:center;margin-bottom:20px;color:red;font-size:16px;font-weight:700}.form-group{display:flex;align-items:center;margin-bottom:15px}.form-group label{display:none}.login-form input{flex:1;padding:8px 8px 8px 48px;border:1px solid #ccc;border-radius:4px;box-sizing:border-box;font-size:16px;background-repeat:no-repeat;background-position:12px center;background-size:24px 24px}#username{background-image:url(/images/user5.png)}#password{background-image:url(/images/word5.png)}.captcha-group{display:flex;align-items:center;gap:10px;margin-bottom:15px}.captcha-group input{flex:1}.captcha-container{margin-right:10px}.captcha-image{border:1px solid #ccc;height:40px;width:auto}.forgot-password{text-align:right;margin-bottom:15px}.forgot-password a{text-decoration:none;color:#007bff;font-size:16px}.forgot-password a:hover{text-decoration:underline}.form-buttons{text-align:center}.login-image-btn{padding:0;border:none;background:0 0;cursor:pointer}.login-image-btn img{display:inline-block;max-width:110px;width:100%;height:auto}.login-image-btn:hover img{opacity:.9}.login-image-btn:active img{opacity:.7}@media (max-width:720px){.login-form{padding:30px}.form-group{flex-direction:column;align-items:flex-start}.login-form input{width:100%}.captcha-container{margin-bottom:10px}.forgot-password{text-align:center}.forgot-password a{font-size:14px}.login-avatar img{width:60px;height:60px}.login-image-btn img{max-width:100px}.captcha-group{flex-direction:row!important;align-items:center!important}}@media (max-width:300px){.captcha-group{flex-direction:column!important;align-items:stretch!important}.captcha-group .captcha-container{margin-bottom:10px}}