.nav-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    height: 100%;
    padding: 0;
}

.primary-nav, .secondary-nav {
    background: #fff;
    border-radius: 0;
    padding: 20px 20px 0 20px;
    box-shadow: none;
    margin: 0;
}

.nav-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e9ecef;
    color: #333;
    margin-top: 0;
}

.nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 300px;
    overflow-y: auto;
}

.nav-list::-webkit-scrollbar {
    width: 4px;
}

.nav-list::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 2px;
}

.nav-list::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 2px;
}

.nav-list::-webkit-scrollbar-thumb:hover {
    background: #555;
}

.nav-item {
    margin-bottom: 8px;
}

.nav-link {
    display: block;
    padding: 10px 15px;
    color: #666;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
    background: #f8f9fa;
}

.nav-link:hover {
    background: #e9ecef;
    color: #333;
    border-color: #dee2e6;
}

.nav-link.active {
    background: #ff6b00;
    color: #fff;
    border-color: #ff6b00;
}

.content-area {
    margin-top: 0;
    background: #fff;
    padding: 10px 20px 0 20px;
    border-radius: 0;
    box-shadow: none;
}

.sub-title {
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e9ecef;
    margin-top: 0;
}

.block {
    margin-bottom: 30px;
}

.block .title {
    color: #666;
    margin-bottom: 15px;
}

.list-row-table {
    border: 1px solid #e9ecef;
    border-radius: 4px;
    overflow: hidden;
}

.list-row-title {
    background: #f8f9fa;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    padding: 12px;
    border-bottom: 1px solid #e9ecef;
}

.list-row-title div {
    font-weight: 600;
    color: #333;
}

.list-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    padding: 12px;
    border-bottom: 1px solid #e9ecef;
}

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

.list-row div {
    color: #666;
}

.option-nav {
    padding: 0;
}

.list-block {
    padding: 0;
}

/* 响应式样式 */
@media (max-width: 1200px) {
    .nav-container {
        gap: 15px;
    }
    .primary-nav, .secondary-nav {
        padding: 15px;
    }
    .nav-title {
        font-size: 16px;
    }
    .nav-link {
        padding: 8px 12px;
    }
}

@media (max-width: 992px) {
    .row {
        flex-direction: column;
    }
    .option-nav {
        margin-bottom: 20px;
    }
    .nav-container {
        flex-direction: row;
        gap: 15px;
    }
    .primary-nav, .secondary-nav {
        flex: 1;
    }
    .list-row-title, .list-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
    }
    .primary-nav, .secondary-nav {
        padding: 12px;
    }
    .nav-title {
        font-size: 15px;
        margin-bottom: 10px;
    }
    .nav-link {
        padding: 8px 10px;
        font-size: 14px;
    }
    .list-row-title, .list-row {
        grid-template-columns: 1fr;
    }
    .list-row-title div {
        display: none;
    }
    .list-row div {
        display: grid;
        grid-template-columns: 100px 1fr;
        gap: 10px;
    }
    .list-row div::before {
        content: attr(data-title);
        font-weight: 600;
        color: #333;
    }
}

@media (max-width: 576px) {
    .content-area {
        padding: 15px;
    }
    .sub-title {
        font-size: 16px;
        margin-bottom: 15px;
    }
    .block .title {
        font-size: 14px;
    }
    .list-row div {
        padding: 8px 0;
    }
}