/* 通用样式变量 */
:root {
    --card-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    --card-shadow-hover: 0 10px 25px rgba(0, 0, 0, 0.1);
    --card-transition: transform 0.3s ease, box-shadow 0.3s ease;
    --card-radius: 10px;
    --text-color: #333;
    --text-light: #666;
    --section-spacing: 80px 0;
    --grid-gap: 30px;
}

/* 页面标题 */
.page-header {
    position: relative;
    padding: 0;
    height: 800px;
    overflow: hidden;
    color: #fff;
}

.hero-banner {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.7));
    z-index: 2;
}

.page-header .container {
    position: relative;
    z-index: 3;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-content {
    text-align: center;
    max-width: 800px;
}

.page-header h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.page-header p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
}

/* 通用部分样式 */
.section {
    padding: var(--section-spacing);
}

.section-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.section-intro h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--text-color);
}

.section-intro p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
}

/* 通用卡片网格布局 */
.grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--grid-gap);
    margin-top: 40px;
}

/* 通用卡片样式 */
.card {
    background: #fff;
    border-radius: var(--card-radius);
    padding: 30px;
    box-shadow: var(--card-shadow);
    transition: var(--card-transition);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
}

/* 文本样式通用 */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.primary-heading {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-color);
    font-weight: 600;
}

.secondary-heading {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-color);
    font-weight: 600;
}

.text-content {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* 图标样式通用 */
.icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: block;
}

/* 解决方案概述 */
.solution-overview {
    padding: var(--section-spacing);
}

.solution-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.solution-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--grid-gap);
    margin-top: 40px;
}

.feature-item {
    text-align: center;
    padding: 30px;
    border-radius: var(--card-radius);
    background: #fff;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease;
}

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

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

/* 技术架构 */
.tech-architecture {
    padding: var(--section-spacing);
}

.architecture-diagram {
    text-align: center;
    margin: 40px 0;
}

.architecture-diagram img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.architecture-layers,
.architecture-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--grid-gap);
    margin-top: 60px;
}

.architecture-features {
    margin-bottom: 40px;
}

.layer,
.feature {
    /* background: #fff; */
    padding: 30px;
    /* border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    transition: var(--card-transition); */
    position: relative;
    overflow: hidden;
}

.feature {
    text-align: center;
}

.feature i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: block;
}

.layer:hover,
.feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
}

.layer:hover .layer-content,
.feature:hover .feature-content {
    opacity: 0.1;
    transition: opacity 0.3s ease;
}

/* 遮罩层通用样式 */
.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(var(--primary-color-rgb), 0.85);
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    border-radius: var(--card-radius);
}

.layer:hover .card-overlay,
.feature:hover .card-overlay,
.value-item:hover .card-overlay {
    opacity: 1;
    visibility: visible;
}

.card-overlay .overlay-content {
    padding: 20px;
}

.card-overlay h4 {
    color: #fff;
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.card-overlay p {
    margin: 0;
    font-size: 1rem;
    line-height: 1.6;
}

.card-overlay ul {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
}

.card-overlay ul li {
    color: #fff;
    padding: 8px 0;
    font-size: 0.95rem;
    position: relative;
    padding-left: 20px;
}

.card-overlay ul li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #fff;
}

/* 应用场景 */
.application-scenarios {
    padding: var(--section-spacing);
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--grid-gap);
    margin-top: 40px;
}

.scenario-item {
    background: #fff;
    border-radius: var(--card-radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease;
}

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

.scenario-image {
    height: 200px;
    overflow: hidden;
}

.scenario-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.scenario-item:hover .scenario-image img {
    transform: scale(1.1);
}

.scenario-content {
    padding: 20px;
}

/* 方案价值 */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--grid-gap);
    margin-top: 40px;
}

.value-item {
    background: #fff;
    padding: 30px;
    /* border-radius: var(--card-radius);
    box-shadow: var(--card-shadow); */
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.value-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover); 
}

.value-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    text-align: center;
    animation: float 3s ease-in-out infinite;
}

.value-content {
    text-align: center;
}

.value-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.value-content p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 25px;
}

/* 方案价值详情项样式 - 双列布局 */
.value-details {
    margin-top: 20px;
    display: flex;
    gap: 15px;
}

.detail-column {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.detail-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
    padding: 12px;
    border-radius: 8px;
    background-color: rgba(var(--primary-color-rgb), 0.03);
    transition: all 0.3s ease;
}

.detail-item:hover {
    background-color: rgba(var(--primary-color-rgb), 0.08);
    transform: translateY(-3px);
}

.detail-item i {
    background-color: rgba(var(--primary-color-rgb), 0.1);
    color: var(--primary-color);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    flex-shrink: 0;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.detail-item:hover i {
    background-color: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.detail-info {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.detail-title {
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 5px;
    font-size: 0.95rem;
}

.detail-desc {
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.5;
}

/* 方案优势 */
.advantage-wrapper {
    display: flex;
    flex-wrap: wrap;
    margin-top: 40px;
    background: #fff;
    border-radius: var(--card-radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.advantage-image {
    flex: 1;
    min-width: 400px;
    position: relative;
}

.advantage-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.advantage-content-wrapper {
    flex: 1;
    min-width: 400px;
    padding: 40px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.advantage-item {
    text-align: left;
    display: flex;
    align-items: flex-start;
    transition: transform 0.3s ease;
    padding: 15px;
    border-radius: 8px;
    background: #fff;
}

.advantage-item:hover {
    transform: translateY(-5px);
    background: rgba(var(--primary-color-rgb), 0.05);
}

.advantage-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    margin-right: 15px;
    background: #f8f9fa;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.advantage-item:hover .advantage-icon {
    background: var(--primary-color);
    color: #fff;
}

.advantage-content {
    flex-grow: 1;
}

/* 热门解决方案 - 滚动卡片 */
.solutions-slider {
    display: flex;
    overflow-x: auto;
    scroll-behavior: smooth;
    padding: 20px 0;
    margin: 40px 0 20px;
    scrollbar-width: none; /* Firefox */
    gap: 30px;
}

.solutions-slider::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

.solution-card {
    flex: 0 0 360px;
    height: 400px;
    margin: 0;
    border-radius: var(--card-radius);
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.solution-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.4) 50%, rgba(0, 0, 0, 0.2) 100%);
    padding: 30px 20px;
    color: #fff;
    text-align: center;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.solution-card:hover .solution-card-overlay {
    background: rgba(var(--primary-color-rgb), 0.9);
}

.solution-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: #fff;
    transition: all 0.3s ease;
}

.solution-card:hover .solution-icon {
    transform: scale(1.1);
}

.solution-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #fff;
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.solution-card p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
    margin-bottom: 20px;
    max-width: 85%;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.solution-card .btn-outline {
    border-color: #fff;
    color: #fff;
    padding: 8px 25px;
    font-weight: 500;
    background-color: rgba(0, 0, 0, 0.2);
}

.solution-card .btn-outline:hover {
    background: #fff;
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 按钮样式 */
.btn-outline {
    display: inline-block;
    padding: 8px 20px;
    border: 2px solid var(--primary-color);
    border-radius: 5px;
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: #fff;
}

.btn-more {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-more i {
    margin-left: 8px;
    transition: transform 0.3s;
}

.btn-more:hover {
    color: var(--secondary-color);
}

.btn-more:hover i {
    transform: translateX(5px);
}

/* 滑块导航 */
.slider-nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.slider-prev,
.slider-next {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #fff;
    border: none;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    color: var(--primary-color);
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-prev:hover,
.slider-next:hover {
    background: var(--primary-color);
    color: #fff;
}

/* 客户案例 */
.customer-cases {
    padding: var(--section-spacing);
}

.case-wrapper {
    margin-top: 50px;
    max-width: 1600px;
    margin-left: auto;
    margin-right: auto;
}

.case-item {
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 60px;
    background: #fff;
    border-radius: var(--card-radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.case-item.reverse {
    flex-direction: row-reverse;
}

.case-image {
    flex: 1.2;
    min-width: 450px;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.case-content {
    flex: 1;
    min-width: 400px;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.case-stats {
    display: flex;
    gap: 30px;
    margin-bottom: 25px;
}

.stat {
    text-align: center;
}

.stat .number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat .label {
    color: var(--text-light);
    font-size: 1rem;
}

/* 联系我们 - 波浪背景 */
.contact-cta-section {
    position: relative;
    overflow: hidden;
}

.wave-bg {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background-image: url('data:image/svg+xml;utf8,<svg viewBox="0 0 1200 120" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="none"><path d="M0,0 C150,90 350,0 500,100 C650,190 750,100 900,50 C1050,0 1150,60 1200,80 L1200,120 L0,120 Z" style="fill: white;"/></svg>');
    background-size: cover;
    background-repeat: no-repeat;
}

/* 动画效果 */
@keyframes float {
    0% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0); }
}

/* 响应式设计 */
@media (max-width: 1440px) {
    .solution-card {
        flex: 0 0 320px;
        height: 380px;
    }
    
    .case-image,
    .case-content {
        min-width: 350px;
        padding: 30px;
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 80px 0;
    }
    
    .page-header h1 {
        font-size: 2.5rem;
    }
    
    .solution-intro h2,
    .section-header h2 {
        font-size: 2rem;
    }
    
    .advantage-wrapper,
    .case-item {
        flex-direction: column;
    }
    
    .case-item.reverse {
        flex-direction: column;
    }
    
    .advantage-content-wrapper {
        grid-template-columns: 1fr;
    }
    
    .solutions-slider {
        padding: 10px 0 40px;
        margin: 20px 0;
        gap: 20px;
    }
    
    .solution-card {
        flex: 0 0 260px;
        height: 340px;
    }
    
    .solution-card-overlay {
        padding: 25px 15px;
    }
    
    .solution-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
        margin-bottom: 10px;
    }
    
    .solution-card h3 {
        font-size: 1.3rem;
        margin-bottom: 10px;
    }
    
    .case-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .values-grid,
    .advantages-grid,
    .solutions-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .value-details {
        flex-direction: column;
    }
    
    .detail-item {
        margin-bottom: 10px;
    }
}

@media (max-width: 480px) {
    .page-header h1 {
        font-size: 2rem;
    }
    
    .solution-features,
    .architecture-layers,
    .scenarios-grid,
    .values-grid,
    .advantages-grid,
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .solutions-slider {
        gap: 15px;
    }
    
    .solution-card {
        flex: 0 0 85%;
        height: 320px;
    }
    
    .solution-card-overlay {
        padding: 20px 15px;
    }
    
    .solution-card h3 {
        font-size: 1.2rem;
    }
    
    .solution-card p {
        font-size: 0.95rem;
        max-width: 90%;
    }
    
    .solution-card .btn-outline {
        padding: 6px 20px;
        font-size: 0.9rem;
    }
    
    .slider-prev,
    .slider-next {
        width: 40px;
        height: 40px;
    }
}

/* 焦炉尾气制氢联产LNG数字化解决方案页面样式 */

/* 解决方案头部 */
.solution-hero {
    position: relative;
    height: 600px;
    color: #fff;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.solution-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: -1;
}

.solution-hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.8));
}

.solution-hero-content {
    max-width: 1800px;
    padding: 0 20px;
    z-index: 1;
}

.solution-hero-content h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.solution-hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.solution-features-highlight {
    display: flex;
    flex-wrap: wrap;
    margin-top: 30px;
}

.solution-feature-item {
    display: flex;
    align-items: center;
    margin-right: 30px;
    margin-bottom: 15px;
}

.solution-feature-item i {
    font-size: 1.3rem;
    margin-right: 10px;
    color: #4CAF50;
}

/* 解决方案概述 */
.solution-overview {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.2rem;
    margin-bottom: 15px;
    color: #333;
}

.section-header p {
    font-size: 1.1rem;
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

.solution-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
}

.solution-image {
    flex: 1;
    min-width: 300px;
}

.solution-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.solution-text {
    flex: 1;
    min-width: 300px;
}

.solution-text p {
    font-size: 1rem;
    line-height: 1.7;
    color: #555;
    margin-bottom: 20px;
}

.solution-stats {
    display: flex;
    margin-top: 30px;
    justify-content: space-between;
}

.stat-item {
    text-align: center;
    padding: 20px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    /* color: #4CAF50; */
    margin-bottom: 5px;
    display: flex;
    justify-content: center;
    align-items: baseline;
}

.stat-number span {
    font-size: 1rem;
    margin-left: 5px;
}

.stat-text {
    font-size: 0.9rem;
    /* color: #666; */
}

/* 核心优势 */
.solution-advantages {
    padding: 80px 0;
}

.advantages-grid {
    display: grid;
    /* grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); */
    grid-template-columns: repeat(3, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.advantage-card {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.advantage-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(76, 175, 80, 0.1);
    border-radius: 50%;
    margin-bottom: 20px;
}

.advantage-icon i {
    font-size: 1.8rem;
    color: #4CAF50;
}

.advantage-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #333;
}

.advantage-card p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #666;
}

/* 解决方案架构 */
.solution-architecture {
    padding: 80px 0;
    background-color: #f5f9f5;
}

.architecture-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
    margin-top: 40px;
}

.architecture-image {
    flex: 1;
    min-width: 300px;
}

.architecture-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.architecture-layers {
    flex: 1;
    min-width: 300px;
}

.architecture-layer {
    margin-bottom: 30px;
    padding: 20px;
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.architecture-layer:hover {
    transform: translateY(-5px);
}

.architecture-layer h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #333;
    display: flex;
    align-items: center;
}

.architecture-layer h3 i {
    margin-right: 10px;
    color: #4CAF50;
}

.architecture-layer p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #666;
}

/* 应用场景 */
.solution-scenarios {
    padding: 80px 0;
}

.scenarios-tabs {
    margin-top: 50px;
}

.scenario-nav {
    margin-bottom: 40px;
}

.scenario-nav ul {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    list-style: none;
    padding: 0;
}

.scenario-nav li a {
    display: block;
    padding: 12px 25px;
    background: #f5f5f5;
    color: #555;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.scenario-nav li.active a {
    background: #4CAF50;
    color: #fff;
}

.scenario-nav li a:hover {
    background: #e0e0e0;
}

.scenario-nav li.active a:hover {
    background: #43a047;
}

.scenario-content-item {
    display: none;
}

.scenario-content-item.active {
    display: block;
}

.scenario-main {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
}

.scenario-text {
    flex: 1;
    min-width: 300px;
}

.scenario-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #333;
}

.scenario-text p {
    font-size: 1rem;
    line-height: 1.7;
    color: #555;
    margin-bottom: 20px;
}

.scenario-features {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 15px;
    margin-top: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    background: #f5f5f5;
    border-radius: 5px;
}

.feature-item i {
    color: #4CAF50;
    margin-right: 10px;
}

.scenario-image {
    flex: 1;
    min-width: 300px;
}

.scenario-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* 成功案例 */
.solution-case-study {
    padding: 80px 0;
    background-color: #f5f5f5;
}

.case-study-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
    margin-top: 40px;
}

.case-study-image {
    flex: 1;
    min-width: 300px;
}

.case-study-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.case-study-text {
    flex: 1;
    min-width: 300px;
}

.case-study-text h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    margin-top: 25px;
    color: #333;
}

.case-study-text h3:first-child {
    margin-top: 0;
}

.case-study-text p {
    font-size: 1rem;
    line-height: 1.7;
    color: #555;
    margin-bottom: 20px;
}

.case-study-quote {
    margin-top: 30px;
    padding: 20px;
    background: #fff;
    border-left: 4px solid #4CAF50;
    border-radius: 0 10px 10px 0;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.case-study-quote p {
    font-style: italic;
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.quote-author {
    font-weight: 600;
    color: #555;
    text-align: right;
}

/* 联系部分 */
.solution-contact {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    /* grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); */
    grid-template-columns: repeat(4, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.contact-card {
    text-align: center;
    padding: 30px;
    /* background: #f9f9f9; */
    border-radius: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.contact-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(76, 175, 80, 0.1);
    border-radius: 50%;
    margin: 0 auto 20px;
}

.contact-icon i {
    font-size: 2rem;
    color: #4CAF50;
}

.contact-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #333;
}

.contact-card p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #666;
    margin-bottom: 8px;
}

.contact-card .btn {
    margin-top: 15px;
}

/* 响应式样式 */
@media (max-width: 768px) {
    .solution-hero {
        height: 500px;
    }
    
    .solution-hero-content h1 {
        font-size: 2.2rem;
    }
    
    .solution-content, 
    .architecture-content, 
    .scenario-main, 
    .case-study-content {
        flex-direction: column;
    }
    
    .solution-image, 
    .architecture-image, 
    .scenario-image, 
    .case-study-image {
        order: -1;
    }
    
    .solution-stats {
        flex-wrap: wrap;
    }
    
    .stat-item {
        width: 50%;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .solution-features-highlight {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .solution-hero-content h1 {
        font-size: 1.8rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .scenario-nav ul {
        flex-direction: column;
        gap: 10px;
    }
    
    .scenario-features {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-item {
        width: 100%;
    }
}