.login-container {
            width: 100%;
            max-width: 420px;
            background-color: white;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            overflow: hidden;
            padding: 40px 35px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .login-container:hover {
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
        }

        .logo-container {
            text-align: center;
            margin-bottom: 20px;
        }

        .logo-container h1 {
            color: #333;
            font-size: 24px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .logo-container p {
            color: #666;
            font-size: 14px;
            margin-top: 6px;
            font-weight: 400;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            color: #555;
            font-weight: 500;
            font-size: 14px;
        }

        .input-with-icon {
            position: relative;
        }

        .input-with-icon i {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: #8a96b5;
            font-size: 15px;
        }

        .form-control {
            width: 100%;
            padding: 13px 16px 13px 48px;
            border: 1.5px solid #e1e5f1;
            border-radius: 10px;
            font-size: 14.5px;
            color: #333;
            transition: all 0.3s;
            background-color: #fcfdfe;
        }

        .form-control:focus {
            outline: none;
            border-color: #4a6fff;
            box-shadow: 0 0 0 3px rgba(74, 111, 255, 0.1);
            background-color: white;
        }

         .captcha-input-container {
            display: flex;
            gap: 10px;
        }

        .captcha-input-container .form-control {
            flex: 1;
        }

        .btn-captcha {
            padding: 0 1rem;
            background-color: #4a6fff;
            color: white;
            border: none;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: background-color 0.3s;
            white-space: nowrap;
        }

        .btn-captcha:hover {
            background-color: #3a5fef;
        }

        .btn-captcha:disabled {
            background-color: #a0b0ff;
            cursor: not-allowed;
        }




        .checkbox-container {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
        }

        .checkbox-container input {
            margin-right: 8px;
            width: 16px;
            height: 16px;
            cursor: pointer;
        }

        .checkbox-container label {
            color: #555;
            cursor: pointer;
            font-size: 14px;
        }

        .checkbox-container a {
            color: #4a6fff;
            text-decoration: none;
        }

        .checkbox-container a:hover {
            text-decoration: underline;
        }

        .btn-login {
            width: 100%;
            padding: 14px;
            background-color: #4a6fff;
            color: white;
            border: none;
            border-radius: 10px;
            font-size: 15.5px;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s;
            margin-bottom: 25px;
        }

        .btn-login:hover {
            background-color: #3a5fef;
        }

        .btn-login:active {
            transform: translateY(1px);
        }

        .action-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 25px;
        }

        .action-link {
            color: #4a6fff;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
        }

        .action-link:hover {
            text-decoration: underline;
        }

        .divider {
            text-align: center;
            position: relative;
            margin: 20px 0;
            color: #aaa;
            font-size: 14px;
        }

        .divider::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            width: 45%;
            height: 1px;
            background-color: #eee;
        }

        .divider::after {
            content: "";
            position: absolute;
            right: 0;
            top: 50%;
            width: 45%;
            height: 1px;
            background-color: #eee;
        }

        .alternative-login-row {
            display: flex;
            gap: 15px;
            margin-bottom: 20px;
        }

        .alternative-btn {
            flex: 1;
            padding: 12px;
            border-radius: 10px;
            font-size: 14.5px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            border: 1.5px solid #e1e5f1;
            background-color: white;
        }

        .btn-wechat {
            color: #07C160;
            border-color: #d4f3e0;
        }

        .btn-wechat:hover {
            background-color: #f0fff7;
            border-color: #07C160;
        }

        .btn-guest {
            color: #4a6fff;
            border-color: #d0d9ff;
        }

        .btn-guest:hover {
            background-color: #f0f4ff;
            border-color: #4a6fff;
        }

        .alternative-btn i {
            font-size: 16px;
        }

        .footer-text {
            text-align: center;
            margin-top: 25px;
            color: #999;
            font-size: 12.5px;
            line-height: 1.5;
        }

        .footer-text a {
            color: #4a6fff;
            text-decoration: none;
        }



/* 图形码模态框 */
.captcha-modal{
    display:none; position:fixed; top:0; left:0;
    width:100%; height:100%;
    background:rgba(0,0,0,0.5); z-index:9999;
}
.captcha-modal_div{
    background:white; width:300px; margin:100px auto; padding:20px;
    border-radius:8px; text-align:center;
}
.captcha-img{
    width:150px; height:50px; margin:10px auto; border:1px solid #ddd; cursor:pointer;
}
.captcha-input{
    width:150px; padding:8px; margin:10px; font-size:16px; text-align:center;
}


@media (max-width: 480px) {
    .login-container {
        padding: 15px 15px;
    }

    .logo-placeholder {
        width: 80px;
        height: 80px;
    }

    .logo-placeholder i {
        font-size: 36px;
    }

    .logo-container h1 {
        font-size: 22px;
    }

    .alternative-login-row {
        flex-direction: column;
        gap: 10px;
    }
}