/* =============================================== */
/* PVC地胶页面页头布局重叠紧急修复 */
/* 修复 https://www.pvc88888.com/pvc-flooring.html */
/* =============================================== */

/* 1. 修复PC端和所有设备的页头重叠问题 */
/* =============================================== */

/* 确保主导航栏固定定位并设置足够z-index */
header.main-header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 1000 !important;
    background-color: white !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1) !important;
    height: auto !important;
    min-height: 70px !important;
    padding: 15px 0 !important;
}

/* 为固定导航栏创建空间补偿 */
body {
    padding-top: 90px !important;
    overflow-x: hidden !important;
}

/* 修复页面标题区域 - 确保在导航栏下方 */
section.page-header {
    margin-top: 0 !important;
    padding-top: 40px !important;
    padding-bottom: 40px !important;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: white !important;
    text-align: center !important;
    position: relative !important;
    z-index: 1 !important;
    clear: both !important;
}

/* 确保页面标题容器有足够内边距 */
section.page-header .container {
    padding-top: 20px !important;
    padding-bottom: 20px !important;
}

/* 2. 修复导航栏内部布局问题 */
/* =============================================== */

/* 确保导航容器布局正确 */
.main-header .container {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    flex-wrap: wrap !important;
    position: relative !important;
    z-index: 1001 !important;
}

/* 修复logo区域 */
.main-header .logo {
    flex: 0 0 auto !important;
    max-width: 250px !important;
}

.main-header .logo h1 {
    margin: 0 !important;
    padding: 0 !important;
    font-size: 1.5rem !important;
    line-height: 1.2 !important;
}

.main-header .logo .tagline {
    margin: 5px 0 0 0 !important;
    padding: 0 !important;
    font-size: 0.9rem !important;
    color: #666 !important;
}

/* 修复主导航区域 */
.main-header .main-nav {
    flex: 1 1 auto !important;
    display: flex !important;
    align-items: center !important;
    justify-content: flex-end !important;
    gap: 20px !important;
}

/* 修复导航链接布局 */
.main-nav .nav-links {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 15px !important;
    margin: 0 !important;
    padding: 0 !important;
}

.main-nav .nav-links a {
    text-decoration: none !important;
    color: #333 !important;
    font-weight: 500 !important;
    padding: 5px 10px !important;
    border-radius: 4px !important;
    transition: all 0.3s ease !important;
}

.main-nav .nav-links a:hover,
.main-nav .nav-links a.active {
    background-color: #f0f0f0 !important;
    color: #2D3748 !important;
}

/* 修复电话按钮样式 */
.phone-cta {
    display: inline-flex !important;
    align-items: center !important;
    gap: 8px !important;
    background: #FF5A5F !important;
    color: white !important;
    padding: 10px 20px !important;
    border-radius: 6px !important;
    text-decoration: none !important;
    font-weight: bold !important;
    white-space: nowrap !important;
    flex-shrink: 0 !important;
}

.phone-cta:hover {
    background: #E04449 !important;
}

/* 3. 修复响应式布局 - 移动端适配 */
/* =============================================== */

@media (max-width: 768px) {
    /* 移动端body补偿高度调整 */
    body {
        padding-top: 120px !important;
    }
    
    /* 移动端导航栏调整 */
    header.main-header {
        min-height: 80px !important;
        padding: 10px 0 !important;
    }
    
    /* 移动端导航布局改为垂直 */
    .main-header .container {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 10px !important;
    }
    
    /* 移动端logo区域调整 */
    .main-header .logo {
        max-width: 100% !important;
        text-align: center !important;
        margin-bottom: 5px !important;
    }
    
    /* 移动端导航链接垂直排列 */
    .main-nav {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 10px !important;
    }
    
    .main-nav .nav-links {
        flex-direction: column !important;
        gap: 8px !important;
        margin-bottom: 10px !important;
    }
    
    .main-nav .nav-links a {
        text-align: center !important;
        padding: 8px !important;
        border: 1px solid #eee !important;
    }
    
    /* 移动端电话按钮居中 */
    .phone-cta {
        justify-content: center !important;
        width: 100% !important;
        margin-top: 5px !important;
    }
    
    /* 移动端页面标题调整 */
    section.page-header {
        padding-top: 30px !important;
        padding-bottom: 30px !important;
    }
    
    section.page-header h2 {
        font-size: 1.8rem !important;
        margin-bottom: 10px !important;
    }
    
    section.page-header p {
        font-size: 1rem !important;
        margin-bottom: 0 !important;
    }
}

@media (max-width: 480px) {
    /* 超小屏幕进一步调整 */
    body {
        padding-top: 140px !important;
    }
    
    header.main-header {
        min-height: 90px !important;
    }
    
    .main-header .logo h1 {
        font-size: 1.3rem !important;
    }
    
    .main-header .logo .tagline {
        font-size: 0.8rem !important;
    }
    
    section.page-header h2 {
        font-size: 1.5rem !important;
    }
}

/* 4. 确保所有其他元素清晰布局 */
/* =============================================== */

/* 确保所有后续section有清晰的间距 */
section.product-section,
section.pvc-advantages,
section.application-section,
section.installation-section,
section.consult-section {
    padding-top: 40px !important;
    padding-bottom: 40px !important;
    clear: both !important;
    position: relative !important;
    z-index: 1 !important;
}

/* 修复产品卡片网格布局 */
.product-grid {
    display: grid !important;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)) !important;
    gap: 25px !important;
    margin-top: 30px !important;
}

.product-card {
    position: relative !important;
    z-index: 2 !important;
    border: 1px solid #eee !important;
    border-radius: 8px !important;
    padding: 20px !important;
    background: white !important;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05) !important;
    transition: transform 0.3s ease, box-shadow 0.3s ease !important;
}

.product-card:hover {
    transform: translateY(-5px) !important;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1) !important;
}

/* 确保优势列表清晰布局 */
.advantage-list {
    display: flex !important;
    flex-direction: column !important;
    gap: 25px !important;
    margin-top: 30px !important;
}

.advantage-row {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 25px !important;
}

@media (max-width: 768px) {
    .advantage-row {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }
    
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)) !important;
        gap: 20px !important;
    }
}

@media (max-width: 480px) {
    .product-grid {
        grid-template-columns: 1fr !important;
    }
}

/* 5. 最终确保布局干净无重叠 */
/* =============================================== */

/* 强制清除所有浮动 */
.clearfix::after {
    content: "" !important;
    display: table !important;
    clear: both !important;
}

/* 确保没有负边距导致的布局问题 */
* {
    margin-top: 0 !important;
    margin-bottom: 0 !important;
}

/* 修复可能的内联样式冲突 */
[style*="position:absolute"],
[style*="position: fixed"] {
    z-index: auto !important;
    top: auto !important;
    left: auto !important;
}

/* 确保所有关键元素有足够的层级 */
header.main-header {
    z-index: 1000 !important;
}

section.page-header {
    z-index: 100 !important;
}

section.product-section,
section.pvc-advantages,
section.application-section,
section.installation-section,
section.consult-section {
    z-index: 50 !important;
}

footer.main-footer {
    z-index: 10 !important;
}