/* 二级页面通用样式 */
.page-banner {
    background-color: #f8f9fa;
    padding: 50px 0;
    margin-bottom: 40px;
    box-shadow: inset 0 -4px 10px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.page-banner:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(0, 102, 204, 0.05), rgba(0, 102, 204, 0));
}

.page-banner h1 {
    font-size: 36px;
    color: #333;
    margin-bottom: 15px;
    font-weight: 600;
    position: relative;
}

.breadcrumb {
    color: #666;
    font-size: 14px;
    position: relative;
}

.breadcrumb a {
    color: #0066cc;
    transition: all 0.3s ease;
}

.breadcrumb a:hover {
    color: #005bb8;
    text-decoration: underline;
}

/* 内容区域通用样式 */
.page-content .container {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 30px;
    align-items: start;
}

.content-section {
    background: #fff;
    padding: 40px 0;
    margin-bottom: 40px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.content-section:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    transform: translateY(-2px);
}

.main-content {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.content-section h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
}

.content-section h3 {
    font-size: 20px;
    color: #444;
    margin-bottom: 20px;
}

/* 网格布局 */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

.grid-item {
    background: #fff;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.grid-item:hover {
    transform: translateY(-5px);
}

/* 图标样式 */
.icon-container {
    width: 60px;
    height: 60px;
    background: #0066cc;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.icon-container i {
    color: #fff;
    font-size: 24px;
}

/* 表单样式 */
.form-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 30px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #444;
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.form-group textarea {
    min-height: 120px;
}

/* 按钮样式 */
.btn-primary {
    background: #0066cc;
    color: #fff;
    padding: 12px 30px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.btn-primary:hover {
    background: #004499;
}

/* 侧边栏样式 */
.sidebar {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.sidebar h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #0066cc;
}

.sidebar ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar ul li {
    margin-bottom: 10px;
}

.sidebar ul li a {
    color: #666;
    text-decoration: none;
    display: block;
    padding: 8px 10px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.sidebar ul li a:hover,
.sidebar ul li.active a {
    background: #f5f5f5;
    color: #0066cc;
}

/* 响应式布局 */
@media (max-width: 1200px) {
    .container {
        width: 100%;
        padding: 0 20px;
    }
}

@media (max-width: 768px) {
    .page-banner {
        padding: 40px 0;
    }

    .page-banner h1 {
        font-size: 28px;
    }

    .grid-container {
        grid-template-columns: 1fr;
    }

    .content-section {
        padding: 30px 0;
    }

    .page-content .container {
        grid-template-columns: 1fr;
    }

    .sidebar {
        margin-top: 30px;
    }
}