/* ========== 登录注册页面 ========== */
.auth-page {
    min-height: calc(100vh - 70px);
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--cream) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 45px 20px;
}

.auth-container {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-hover);
    width: 100%;
    max-width: 420px;
    padding: 40px;
}

/* ========== Tab 切换 ========== */
.auth-tabs {
    display: flex;
    margin-bottom: 28px;
    border-bottom: 1px solid var(--gray);
}

.auth-tab {
    flex: 1;
    padding: 14px;
    background: none;
    border: none;
    font-size: 1rem;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.auth-tab.active {
    color: var(--primary);
}

.auth-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
}

/* ========== 表单样式 ========== */
.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-size: 0.92rem;
}

.form-group input {
    width: 100%;
    padding: 13px 16px;
    border: 1px solid var(--gray);
    border-radius: 10px;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(196, 149, 106, 0.15);
}

.form-group input.error {
    border-color: #D9534F;
}

.error-message {
    color: #D9534F;
    font-size: 0.82rem;
    margin-top: 6px;
    display: none;
}

.error-message.show {
    display: block;
}

/* ========== 复选框 ========== */
.checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.checkbox-group span {
    font-size: 0.9rem;
    color: var(--text-gray);
}

/* ========== 按钮和底部链接 ========== */
.auth-btn {
    width: 100%;
    padding: 14px;
    font-size: 1rem;
    margin-top: 10px;
}

.auth-footer {
    text-align: center;
    margin-top: 22px;
    color: var(--text-gray);
    font-size: 0.88rem;
}

.auth-footer a {
    color: var(--primary);
    margin-left: 5px;
}

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

/* ========== 响应式 ========== */
@media (max-width: 480px) {
    .auth-container {
        padding: 28px;
    }
}