/* 全局重置与基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", sans-serif;
}

body {
    background-color: #f0f2f5;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

/* 导航栏样式 */
.nav {
    background: linear-gradient(to bottom, rgba(125, 200, 246, 0.8), rgba(75, 99, 174, 0));
    padding: 15px 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 999;
}

.nav-container {
    width: 85%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-ul {
    display: flex;
    justify-content: start;
}

.nav-ul li {
    list-style: none;
    margin: 0 40px;
}

.nav-ul-a {
    color: #200;
    font-size: 19px;
    text-decoration: none;
}

.nav-ul li a:hover {
    color: rgb(51, 0, 255);
}

.login {
    color: rgb(216, 83, 83);
    font-size: 22px;
    font-weight: bold;
    text-decoration: none;
}

.logo {
    color: #ed9d7b;
    font-size: 26px;
    font-weight: bold;
    text-decoration: none;
}

/* 登录/注册容器样式 */
.auth-container {
    width: 420px;
    padding: 36px;
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.auth-title {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 24px;
    font-size: 22px;
}

.auth-form {
    margin-top: 12px;
}

.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    margin-bottom: 6px;
    color: #34495e;
    font-size: 14px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #dcdfe6;
    border-radius: 6px;
    font-size: 15px;
    transition: border-color 0.3s;
}

.form-input:focus {
    outline: none;
    border-color: #4b63ae;
}

.form-btn {
    width: 100%;
    padding: 12px;
    background-color: #4b63ae;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.form-btn:hover {
    background-color: #3a508b;
}

.auth-link {
    text-align: center;
    margin-top: 16px;
    font-size: 14px;
    color: #7f8c8d;
}

.auth-link a {
    color: #4b63ae;
    text-decoration: none;
}

.auth-link a:hover {
    text-decoration: underline;
}

/* 验证码容器样式 */
.vercode-container {
    display: flex;
    gap: 10px;
    align-items: center;
}

.vercode-input {
    flex: 1;
}

.vercode-img {
    cursor: pointer;
    height: 40px;
    border-radius: 4px;
}

/* 提示消息样式 */
.flash-error {
    color: #e74c3c;
    text-align: center;
    padding: 8px;
    margin-bottom: 12px;
    border-radius: 4px;
    background-color: #fef0f0;
}

.flash-success {
    color: #27ae60;
    text-align: center;
    padding: 8px;
    margin-bottom: 12px;
    border-radius: 4px;
    background-color: #f0f9f0;
}

.flash-info {
    color: #3498db;
    text-align: center;
    padding: 8px;
    margin-bottom: 12px;
    border-radius: 4px;
    background-color: #e8f4fd;
}

/* 前端验证错误提示 */
.front-error {
    color: #e74c3c;
    font-size: 12px;
    margin-top: 4px;
    display: block;
}

.error-msg {
    color: #e74c3c;
    font-size: 12px;
    margin-top: 4px;
    display: block;
}