.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 70vh;
    /* 垂直居中，留出头部空间 */
    padding: 2rem 1rem;
}

.login-card {
    max-width: 360px;
    /* 与 Yohaku 表单宽度一致 */
    width: 100%;
    padding: 2rem 0;
}

/* 登录标题 */
.login-title {
    font-family: var(--font-serif, "Noto Serif SC", serif);
    font-size: 1.5rem;
    /* 24px */
    font-weight: 500;
    color: var(--color-neutral-10, #141312);
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid #e8e6e1;
    /* 极细分割线 */
}

/* 表单 */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* 表单项组 */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

/* 标签 */
.form-group .form-label {
    font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif);
    font-size: 0.8125rem;
    /* 13px */
    font-weight: 500;
    color: var(--color-neutral-8, #403F3A);
    letter-spacing: 0.02em;
    margin-bottom: 0;
}

/* 输入框 (统一风格) */
.form-group .form-control {
    background-color: transparent !important;
    border: none !important;
    border-bottom: 1px solid #d0cec6 !important;
    /* n-4 边框色 */
    border-radius: 0 !important;
    padding: 0.5rem 0 !important;
    /* 去掉左右内边距 */
    font-size: 0.95rem;
    color: var(--color-neutral-9, #24231F);
    transition: border-color 0.25s ease;
    box-shadow: none !important;
    font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif);
}

/* 聚焦状态：仅底部边框变色 */
.form-group .form-control:focus {
    border-bottom-color: var(--color-primary, #C56473) !important;
    outline: none !important;
    box-shadow: none !important;
}

/* 输入框占位符 */
.form-group .form-control::placeholder {
    color: var(--color-neutral-7, #5C5A55);
    opacity: 0.6;
}

/* --- 记住我 (复选框) --- */
.form-group-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0;
}

.form-group-check .form-check-input {
    width: 1rem;
    height: 1rem;
    margin: 0;
    border: 1px solid #d0cec6;
    border-radius: 0;
    background-color: transparent;
    transition: border-color 0.2s ease, background-color 0.2s ease;
    cursor: pointer;
    flex-shrink: 0;
}

.form-group-check .form-check-input:checked {
    background-color: var(--color-primary, #C56473);
    border-color: var(--color-primary, #C56473);
}

.form-group-check .form-check-input:focus {
    box-shadow: none;
    border-color: var(--color-primary, #C56473);
}

.form-group-check .form-check-label {
    font-size: 0.875rem;
    color: var(--color-neutral-8, #403F3A);
    cursor: pointer;
    user-select: none;
}

/* --- 登录按钮 --- */
.form-actions {
    margin-top: 0.5rem;
}

.form-actions .btn-primary {
    background-color: var(--color-primary, #C56473) !important;
    border-color: var(--color-primary, #C56473) !important;
    border-radius: 0 !important;
    color: white !important;
    padding: 0.6rem !important;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    transition: background-color 0.25s ease, border-color 0.25s ease;
}

.form-actions .btn-primary:hover {
    background-color: #b35464 !important;
    /* 主色加深 */
    border-color: #b35464 !important;
}

/* --- 响应式适配 --- */
@media (max-width: 480px) {
    .login-page {
        min-height: 60vh;
        padding: 1rem;
    }

    .login-card {
        padding: 1rem 0;
    }

    .login-title {
        font-size: 1.25rem;
    }
}