/* =============================================
   Footer 主体
============================================= */
#mkl-footer {
    background: #F5F5F7;
    border-top: 1px solid #E5E5EA;
    margin-top: 80px;
}

.mkl-footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 24px 0;
}

/* =============================================
   四列网格
============================================= */
.mkl-footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
}

/* 列4 双行排列 */
.mkl-footer-col-double {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

/* =============================================
   品牌区（列1）
============================================= */
.mkl-footer-logo {
    display: inline-block;
    font-family: 'Inter', 'Noto Sans SC', sans-serif;
    font-size: 16px;
    font-weight: 700;
    color: #1D1D1F;
    text-decoration: none;
    letter-spacing: 0.04em;
    margin-bottom: 12px;
}

.mkl-footer-desc {
    font-family: 'Inter', 'Noto Sans SC', sans-serif;
    font-size: 13px;
    color: #6E6E73;
    line-height: 1.7;
    margin: 0 0 20px;
}

.mkl-footer-qr-hint {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: 'Inter', 'Noto Sans SC', sans-serif;
    font-size: 12px;
    color: #6E6E73;
    margin-bottom: 10px;
}

.mkl-footer-qr img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    border-radius: 8px;
    background: #EDEDF0;
    padding: 5px;
}

/* =============================================
   导航列（details/summary 手风琴）
============================================= */
.mkl-footer-col {
    border: none;
}

/* PC 端：禁用 details 折叠，强制展开 */
@media (min-width: 769px) {
    .mkl-footer-col[open] > summary::after { display: none; }
    .mkl-footer-col summary { cursor: default; pointer-events: none; }
}

.mkl-footer-col-title {
    font-family: 'Inter', 'Noto Sans SC', sans-serif;
    font-size: 13px;
    font-weight: 600;
    color: #1D1D1F;
    letter-spacing: 0.02em;
    margin-bottom: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    user-select: none;
}
.mkl-footer-col-title::-webkit-details-marker { display: none; }

.mkl-footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mkl-footer-links a {
    font-family: 'Inter', 'Noto Sans SC', sans-serif;
    font-size: 13px;
    color: #6E6E73;
    text-decoration: none;
    transition: color 0.2s;
    line-height: 1.4;
}
.mkl-footer-links a:hover { color: #1D1D1F; }

/* =============================================
   底栏
============================================= */
.mkl-footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-top: 1px solid #E5E5EA;
    flex-wrap: wrap;
    gap: 12px;
}

.mkl-footer-bottom-left,
.mkl-footer-bottom-right {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.mkl-footer-copy,
.mkl-footer-bottom a {
    font-family: 'Inter', 'Noto Sans SC', sans-serif;
    font-size: 12px;
    color: #8E8E93;
    text-decoration: none;
}
.mkl-footer-bottom a:hover { color: #1D1D1F; }
.mkl-footer-divider { color: #C7C7CC; }