/* 应用方案部分样式 */
.solutions-section {
    position: relative;
    padding: 120px 0;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-color: transparent;
}

/* 背景图容器 */
.solutions-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.solutions-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 1;
    transition: transform 0.5s ease-out;
}

.solutions-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.solutions-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 60px;
    position: relative;
}

.solutions-title {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: relative;
}

.solutions-title h2 {
    font-size: 42px;
    color: #0c0101;
    margin-bottom: 5px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    position: relative;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.solutions-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px;
}

.solutions-title .solutions-subtitle {
    font-size: 64px;
    color: rgba(255, 255, 255, 0.1);
    font-weight: 800;
    line-height: 1;
    margin-top: 10px;
    letter-spacing: -0.03em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

/* 解决方案网格布局 */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    padding: var(--spacing-md);
}

.solution-card {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
}

.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.solution-icon {
    width: 100%;
    height: 240px;
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: rgba(0, 0, 0, 0.2);
}

.solution-icon img {
    max-width: 100%;
    max-height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

.solution-card:hover .solution-icon img {
    transform: scale(1.05);
}

.solution-content {
    padding: var(--spacing-xl);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.solution-title {
    font-size: 24px;
    color: var(--neutral-100);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    position: relative;
    padding-bottom: var(--spacing-sm);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

.solution-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-normal);
}

.solution-card:hover .solution-title::after {
    width: 60px;
}

.solution-details {
    color: var(--neutral-100);
    font-size: 15px;
    line-height: 1.6;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .solutions-section {
        padding: 100px 0;
    }

    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
        transform: none;
    }
}

@media (max-width: 768px) {
    .solutions-section {
        padding: 80px 0;
    }

    .solutions-title h2 {
        font-size: 36px;
    }

    .solutions-title .solutions-subtitle {
        font-size: 50px;
    }

    .solutions-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        transform: none;
        margin: 0 auto;
        width: 100%;
    }

    .solution-card {
        text-align: left;
        align-items: flex-start;
        margin: 0 auto;
        width: 100%;
        max-width: 400px;
    }

    .solution-icon {
        justify-content: center;
        height: 220px;
    }

    .solution-icon img {
        max-width: 85%;
        max-height: 85%;
        object-fit: contain;
    }

    .solution-content {
        align-items: flex-start;
    }
}

@media (max-width: 576px) {
    .solutions-section {
        padding: 60px 0;
    }

    .solutions-title h2 {
        font-size: 30px;
    }

    .solutions-title .solutions-subtitle {
        font-size: 40px;
    }

    .solution-icon {
        height: 180px;
        justify-content: center;
        padding: 10px;
        background: rgba(0, 0, 0, 0.15);
        display: flex;
        align-items: center;
    }

    .solution-icon img {
        width: auto;
        height: auto;
        max-width: 90%;
        max-height: 90%;
        min-height: 80px;
        min-width: 80px;
        object-fit: contain;
        border-radius: 4px;
        box-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
        margin: 0 auto;
    }

    .solution-content {
        padding: 15px;
    }

    .solution-title {
        font-size: 20px;
        text-align: left;
    }

    .solution-card {
        background: rgba(0, 0, 0, 0.3);
        padding: 0;
        margin: 0 auto 20px auto;
        width: 100%;
        max-width: 400px;
    }

    .solutions-grid {
        padding: 0 10px;
        transform: none;
        margin: 0 auto;
        width: 100%;
    }

    .solution-details p {
        text-align: left;
    }

    .solutions-container {
        padding: 0 15px;
    }
}

/* 应用方案页面样式 */
.solutions-content {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-blue-50);
    min-height: 100vh;
}

/* 页面标题 */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.section-header h1 {
    font-size: 2.5rem;
    color: var(--neutral-800);
    margin-bottom: var(--spacing-xs);
}

.section-subtitle {
    font-size: 1rem;
    color: var(--neutral-500);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* 分类选择器 */
.solutions-categories {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--neutral-100);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--bg-blue-100);
}

.category-item {
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--neutral-600);
    font-size: 1rem;
    cursor: pointer;
    position: relative;
    transition: var(--transition-normal);
}

.category-item::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-normal);
    transform: translateX(-50%);
}

.category-item:hover,
.category-item.active {
    color: var(--primary-color);
}

.category-item:hover::after,
.category-item.active::after {
    width: 80%;
}

/* 添加页面容器样式 */
.solutions-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px 20px;
}

/* 优化标题样式 */
.solutions-header {
    text-align: center;
    margin-bottom: 50px;
}

.solutions-title h3 {
    font-size: 36px;
    color: #2C3E50;
    margin-bottom: 16px;
    font-weight: 600;
}

.solutions-title p {
    font-size: 18px;
    color: #5D6D7E;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 应用方案导航样式 */
.solutions-nav {
    background-color: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
    position: sticky;
    top: 60px;
    z-index: 100;
}

.solutions-nav .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.solutions-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.solutions-nav a {
    display: block;
    padding: 15px 0;
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    position: relative;
}

.solutions-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #007bff;
    transition: width 0.3s ease;
}

.solutions-nav a:hover,
.solutions-nav a.active {
    color: #007bff;
}

.solutions-nav a:hover::after,
.solutions-nav a.active::after {
    width: 100%;
}

/* 应用方案内容样式 */
.solutions-content .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.solution-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.solution-products h4 {
    font-size: 16px;
    color: #666;
    margin: 0 0 15px;
    font-weight: normal;
}

.product-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.product-item {
    display: inline-block;
    padding: 6px 12px;
    background-color: #f8f9fa;
    border-radius: 4px;
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
}

.product-item:hover {
    background-color: #007bff;
    color: #fff;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .solutions-grid {
        transform: none;
    }

    .solution-item {
        width: 180px;
        height: 156px;
    }

    .solution-item:nth-child(n+4) {
        margin-top: -39px;
    }

    .solution-item:nth-child(1) {
        transform: none;
    }

    .solution-item:nth-child(2) {
        transform: none;
    }

    .solution-item:nth-child(3) {
        transform: none;
    }

    .solution-item:nth-child(4) {
        transform: none;
    }

    .solution-item:nth-child(5) {
        transform: none;
    }

    .solution-item:nth-child(1):hover,
    .solution-item:nth-child(2):hover,
    .solution-item:nth-child(3):hover,
    .solution-item:nth-child(4):hover,
    .solution-item:nth-child(5):hover {
        transform: scale(1.05) translateY(-5px);
    }

    .solution-icon {
        width: 60px;
        height: 60px;
    }

    .solution-item h3 {
        font-size: 14px;
    }
}

@media (max-width: 576px) {
    .solution-item {
        width: 180px;
        height: 156px;
    }
}

/* 页脚样式 */
.footer {
    background-color: #1e1e1e;
    padding: 15px 0;
    text-align: center;
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.footer-bottom p {
    margin: 0;
    line-height: 1.5;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom .company {
    margin-bottom: 2px;
}

.footer-bottom img {
    vertical-align: middle;
    margin: 0 5px;
    height: 14px;
}

@media (max-width: 768px) {
    .footer-bottom p {
        font-size: 11px;
    }

    .footer-bottom img {
        height: 12px;
    }
}