:root {
    --primary: #1890ff;
    --dark: #333;
    --gray: #666;
    --border: #eee;
    --border-radius: 8px;
    --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
}

.user-container {
    background: #fff;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    margin: 0 auto;
    padding: 30px;
    width: 650px;
}

.user-title {
    font-size: 18px;
    margin-bottom: 10px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border);
}

.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    font-size: 14px;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(25, 152, 255, 0.15);
    outline: none;
}

.btn-user {
    width: 100%;
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-user:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

.btn-primary-user {
    background: linear-gradient(to right, var(--primary), #6e8ffa);
    color: white;
}

.btn-primary-user:hover {
    background: linear-gradient(to right, #6e8ffa, var(--primary));
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.btn-default-user {
    background: #f0f0f0;
    color: var(--dark);
    border-radius: var(--border-radius);
}

.btn-default-user:hover {
    background: #e0e0e0;
}

.form-footer {
    text-align: center;
    margin-top: 20px;
    color: var(--gray);
}

.form-footer a {
    color: var(--primary);
    text-decoration: none;
}

.form-footer a:hover {
    text-decoration: underline;
}

/* 头像上传样式 */
.avatar-section {
    margin-bottom: 30px;
    display: flex;
    align-items: center;
}

.avatar-preview {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 20px;
}

.avatar-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-upload {
    position: relative;
}

.avatar-upload-btn {
    background: #f0f0f0;
    color: var(--dark);
    border: 1px solid #ddd;
    padding: 8px 15px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.avatar-upload-btn:hover {
    background: #e0e0e0;
}

.avatar-upload input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

/* 表单验证样式 */
.is-invalid {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.invalid-feedback {
    display: block;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 80%;
    color: #dc3545;
}

/* 邮箱自动补全下拉菜单样式 */
.email-autocomplete-dropdown {
    position: absolute;
    width: 100%;
    max-height: 200px;
    overflow-y: auto;
    background-color: #fff;
    border: 1px solid #ddd;
    border-top: none;
    border-radius: 0 0 4px 4px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    z-index: 1000;
}

.email-option {
    padding: 8px 15px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.email-option:hover, .email-option.active {
    background-color: #f5f5f5;
    color: #333;
}

/* 字符计数器样式 */
.char-counter {
    text-align: right;
    font-size: 12px;
    color: #6c757d;
    margin-top: 4px;
}

/* 超出字符限制的计数器颜色 */
.char-counter.text-danger {
    color: #dc3545;
}

/* 分页容器 */
.user-pagination-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 20px 0;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.user-pagination-btn {
    display: inline-flex;
    align-items: center;
    padding: 8px 15px;
    background: #f0f7ff;
    color: #3b82f6;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: var(--transition);
}

.user-pagination-info {
    margin: 0 15px;
    color: var(--gray);
}

.user-next-btn .fa-angle-right {
    margin-left: 5px;  /* 左边距，让箭头与文字有间隔 */
}

.user-prev-btn .fa-angle-left {
    margin-right: 5px;  /* 右边距，让箭头与文字有间隔 */
}

    .social-login {
        margin: 20px 0;
        text-align: center;
    }
    .social-login p {
        color: #666;
        margin-bottom: 15px;
        position: relative;
    }
    .social-login p:before, .social-login p:after {
        content: "";
        display: inline-block;
        height: 1px;
        width: 100px;
        background: #e6e6e6;
        position: relative;
        top: -4px;
        margin: 0 10px;
    }
    .btn-qq {
        background-color: #12B7F5;
        color: #fff;
        border-radius: 50%;
        width: 40px;
        height: 40px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        transition: all 0.3s;
        font-size: 20px;
    }
    .btn-qq:hover {
        background-color: #0e9ad0;
        transform: translateY(-2px);
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    }

/* 响应式调整 */
@media (max-width: 768px) {
    .user-container {
        width: 100%;
        padding: 20px 15px;
        border-radius: 0;
        box-shadow: none;
    }
    
    /* 分页按钮样式 - 让按钮换行显示 */
   .user-pagination-container {
       flex-direction: row;
       flex-wrap: wrap; /* 允许元素换行 */
       justify-content: center;
       gap: 10px; /* 按钮之间的间距 */
   }
   
   .user-pagination-info {
       width: 100%; /* 让信息占据整行 */
       text-align: center;
       margin: 5px 0;
       order: -1; /* 让信息显示在最上面 */
   }
   
   .user-pagination-btn {
       margin: 5px 0; /* 设置上下边距 */
   }
    
    .form-control {
        padding: 8px 12px;
    }
    
    .btn-user {
        padding: 10px 15px;
    }
    
    .user-title {
        font-size: 16px;
    }
    
    .form-group label {
        font-size: 14px;
    }
}

@media (max-width: 576px) {
    .avatar-section {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .avatar-preview {
        margin-right: 0;
        margin-bottom: 15px;
    }
}

/* 小屏手机额外优化 */
@media (max-width: 375px) {
    .avatar-upload-btn {
        padding: 6px 12px;
        font-size: 13px;
    }
}


/* 用户列表样式 */
.user-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.user-list-item {
    padding: 15px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
}

.user-list-item:last-child {
    border-bottom: none;
}

.user-list-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 15px;
}

.user-list-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-list-info {
    flex: 1;
}

.user-list-name {
    font-weight: 500;
    font-size: 16px;
    margin-bottom: 5px;
}

.user-list-bio {
    font-size: 13px;
    color: var(--gray);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-list-action {
    margin-left: 15px;
}

.follow-btn {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 13px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.follow-btn.following {
    background: #f0f0f0;
    color: var(--gray);
}

.follow-btn.not-following {
    background: var(--primary);
    color: white;
}

.follow-btn:hover {
    transform: translateY(-2px);
}

/* 工具类 */
.d-flex {
    display: flex;
}

.align-center {
    align-items: center;
}

.space-between {
    justify-content: space-between;
}

.text-gray {
    color: var(--gray);
}

.text-dark {
    color: var(--dark);
    text-decoration: none;
}

.text-dark:hover {
    color: var(--primary);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .user-list-item {
        padding: 12px 15px;
    }
    
    .user-list-avatar {
        width: 40px;
        height: 40px;
    }
    
    .user-list-name {
        font-size: 14px;
    }
    
    .user-list-bio {
        font-size: 12px;
    }
}

@media (max-width: 375px) {
    .user-list-avatar {
        width: 35px;
        height: 35px;
        margin-right: 10px;
    }
    
    .user-list-name {
        font-size: 13px;
    }
    
    .user-list-bio {
        font-size: 11px;
    }
}