/* page-style.css - 二级页面专用样式 */

/* ===== 页面Hero区域 ===== */
.page-hero {
    position: relative;
    height: 300px;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    background: #0a3d62;
    background-size: cover;
    background-position: center;
    margin-top: 119px; /* 顶栏35px + 导航栏84px */
    position: relative;
    overflow: hidden;
}

.page-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(15,76,129,0.85) 0%, rgba(30,95,138,0.6) 100%);
    z-index: 1;
}

.page-hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 0 24px;
}

.page-hero-content h1 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
}

.page-hero-content p {
    font-size: 18px;
    line-height: 1.6;
    opacity: 0.9;
    margin-bottom: 0;
    text-shadow: 1px 1px 4px rgba(0,0,0,0.3);
}

/* ===== 页面内容区域 ===== */
.page-content {
    padding: 80px 0;
    background: var(--white);
}

.page-content .container {
    max-width: 1200px;
}

/* ===== 内容区块样式 ===== */
.content-section {
    margin-bottom: 60px;
}

.content-section:last-child {
    margin-bottom: 0;
}

.content-section h2 {
    font-size: 28px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 3px solid var(--secondary);
    display: inline-block;
}

.content-section h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 16px;
}

.content-section p {
    font-size: 16px;
    line-height: 1.75;
    color: var(--text);
    margin-bottom: 16px;
}

.content-section ul, .content-section ol {
    margin-bottom: 16px;
    padding-left: 24px;
}

.content-section li {
    font-size: 16px;
    line-height: 1.75;
    color: var(--text);
    margin-bottom: 8px;
}

.content-section ul li {
    list-style: disc;
}

.content-section ol li {
    list-style: decimal;
}

/* ===== 图片展示 ===== */
.image-showcase {
    margin: 40px 0;
    text-align: center;
}

.image-showcase img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.image-caption {
    font-size: 14px;
    color: var(--text-light);
    margin-top: 12px;
    text-align: center;
}

/* ===== 卡片网格布局 ===== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 32px 0;
}

.card-grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.card-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.content-card {
    background: var(--bg-light);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
    border: 1px solid var(--border);
}

.content-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--secondary);
}

.content-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 12px;
}

.content-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 0;
}

.content-card .card-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.content-card .card-icon i {
    font-size: 20px;
    color: var(--white);
}

/* ===== 技术参数表格 ===== */
.tech-specs {
    margin: 32px 0;
    overflow-x: auto;
}

.tech-specs table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.tech-specs th {
    background: var(--primary);
    color: var(--white);
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 14px;
}

.tech-specs td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    color: var(--text);
}

.tech-specs tr:last-child td {
    border-bottom: none;
}

.tech-specs tr:hover td {
    background: var(--bg-light);
}

/* ===== 案例展示 ===== */
.case-showcase {
    margin: 40px 0;
    padding: 32px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--accent);
}

.case-showcase h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 16px;
}

.case-showcase p {
    font-size: 15px;
    line-height: 1.75;
    color: var(--text);
    margin-bottom: 12px;
}

.case-showcase .case-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 16px;
}

.case-showcase .case-tags span {
    font-size: 12px;
    padding: 4px 12px;
    background: rgba(0,137,123,0.1);
    color: var(--accent);
    border-radius: 20px;
    font-weight: 500;
}

/* ===== CTA按钮 ===== */
.page-cta {
    margin: 60px 0 0;
    padding: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, #1A5C5B 100%);
    border-radius: var(--radius-lg);
    text-align: center;
    color: var(--white);
}

.page-cta h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--white);
    border: none;
    padding: 0;
    display: block;
}

.page-cta p {
    font-size: 16px;
    line-height: 1.6;
    opacity: 0.9;
    margin-bottom: 24px;
    color: var(--white);
}

.page-cta .cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    background: var(--accent);
    color: var(--white);
    border: 2px solid var(--accent);
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.25s;
}

.page-cta .cta-btn:hover {
    background: #007a6a;
    border-color: #007a6a;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0,137,123,0.4);
}

/* ===== 面包屑导航 ===== */
.breadcrumb {
    padding: 16px 0;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border);
    margin-top: 119px;
}

.breadcrumb ul {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.breadcrumb li {
    font-size: 14px;
    color: var(--text-light);
}

.breadcrumb li a {
    color: var(--secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.breadcrumb li a:hover {
    color: var(--primary);
}

.breadcrumb li::after {
    content: '>';
    margin-left: 8px;
    color: var(--text-light);
}

.breadcrumb li:last-child::after {
    display: none;
}

.breadcrumb li:last-child {
    color: var(--text);
    font-weight: 500;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .page-hero {
        height: 250px;
        min-height: 250px;
    }
    
    .page-hero-content h1 {
        font-size: 36px;
    }
    
    .page-hero-content p {
        font-size: 16px;
    }
    
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .card-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .page-hero {
        height: 200px;
        min-height: 200px;
        margin-top: 0;
    }
    
    .page-hero-content h1 {
        font-size: 28px;
    }
    
    .page-hero-content p {
        font-size: 14px;
    }
    
    .page-content {
        padding: 40px 0;
    }
    
    .content-section h2 {
        font-size: 24px;
    }
    
    .card-grid,
    .card-grid-2,
    .card-grid-4 {
        grid-template-columns: 1fr;
    }
    
    .breadcrumb {
        margin-top: 0;
    }
    
    .page-cta {
        padding: 24px;
    }
    
    .page-cta h2 {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .page-hero-content h1 {
        font-size: 24px;
    }
    
    .content-section h2 {
        font-size: 20px;
    }
    
    .content-card {
        padding: 16px;
    }
}