/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Roboto", PingFangSC Regular;
}

body {
    color: #333;
    line-height: 1.6;
    background-color: #fafafa;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

/* Banner样式 */
.banner {
    background-image: url('banner-bg.svg');
    background-size: cover;
    background-position: center;
    height: 550px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333;
    text-align: center;
    padding-top: 20px;
    position: relative;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.banner::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0);
    backdrop-filter: none;
}

.banner-content {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 1200px;
    padding: 0 20px;
    animation: fadeIn 1.5s ease-out;
}

.banner-flex-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-direction: row;
    gap: 30px;
}

.banner-text {
    flex: 1;
    text-align: left;
    padding-right: 20px;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.banner-image {
    flex: 1;
    margin: 0;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1), 0 0 20px rgba(0, 115, 187, 0.1);
    max-width: 100%;
    transition: transform 0.5s ease, box-shadow 0.5s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
}

.banner-image:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.15), 0 0 30px rgba(0, 115, 187, 0.15);
}

.banner-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    filter: drop-shadow(0 5px 15px rgba(0, 0, 0, 0.2));
}

.banner h1 {
    font-size: 48px;
    margin-bottom: 30px;
    font-weight: 700;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    background: linear-gradient(90deg, #0073BB, #0A1A35);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.banner p {
    font-size: 20px;
    line-height: 1.8;
    margin: 0;
    color: #555;
    text-shadow: none;
    font-weight: 300;
}

/* 业务简介 */
.business-intro {
    padding: 80px 0;
    background-color: #fff;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.03);
}

.business-header {
    border-left: 4px solid #FF9900;
    padding-left: 20px;
    margin-bottom: 40px;
}

.business-header h2 {
    font-size: 28px;
    font-weight: 600;
    color: #333;
}

.business-content {
    display: flex;
    align-items: center;
    justify-content: center;
}

.business-content p {
    max-width: 80%;
    color: #555;
    line-height: 1.9;
    font-size: 17px;
}

/* 解决方案介绍 */
.solution-intro {
    padding: 80px 0;
    background: linear-gradient(to right, #f5f7fa, #f9f9f9);
}

.solution-card {
    background-color: white;
    padding: 50px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s ease;
    border-top: 4px solid #FF9900;
}

.solution-card:hover {
    transform: translateY(-5px);
}

.solution-card h2 {
    font-size: 28px;
    margin-bottom: 25px;
    font-weight: 600;
    color: #222;
}

.solution-card p {
    color: #555;
    line-height: 1.9;
    max-width: 80%;
    margin: 0 auto;
    font-size: 17px;
}

/* 解决方案详情 */
.solution-details {
    padding: 80px 0;
    background-color: #fff;
}

.solution-details h2 {
    font-size: 32px;
    margin-bottom: 50px;
    font-weight: 600;
    text-align: center;
    color: #222;
    position: relative;
}

.solution-details h2:after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: #FF9900;
    margin: 15px auto 0;
}

.solution-points .point {
    margin-bottom: 50px;
    padding: 30px;
    background-color: #f9f9f9;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.04);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.solution-points .point:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.point h3 {
    font-size: 22px;
    margin-bottom: 18px;
    font-weight: 600;
    color: #333;
    display: flex;
    align-items: center;
}

.point h3:before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 24px;
    background-color: #FF9900;
    margin-right: 15px;
    border-radius: 4px;
}

.point p {
    color: #555;
    line-height: 1.9;
    font-size: 16px;
    padding-left: 23px;
}

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

.architecture-img img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.architecture-img img:hover {
    transform: scale(1.02);
}

.aws-services {
    background-color: #f5f7fa;
    padding: 30px;
    border-radius: 10px;
    border-left: 4px solid #FF9900;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.aws-services p {
    margin-bottom: 20px;
    font-weight: 600;
    color: #333;
    font-size: 18px;
}

.aws-services ul {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 15px;
}

.aws-services li {
    padding: 12px 15px;
    color: #444;
    background-color: white;
    border-radius: 6px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.04);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    align-items: center;
}

.aws-services li:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    color: #0073BB;
}

.aws-services li:before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: #FF9900;
    border-radius: 50%;
    margin-right: 10px;
}

/* 用户价值 */
.user-value {
    padding: 80px 0;
    background-color: #fff;
}

.value-header {
    margin-bottom: 40px;
    text-align: center;
}

.value-header h2 {
    font-size: 32px;
    font-weight: 600;
    color: #222;
    position: relative;
    display: inline-block;
}

.value-header h2:after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: #FF9900;
    margin: 15px auto 0;
}

.value-content {
    margin-bottom: 60px;
    text-align: center;
}

.value-content p {
    color: #555;
    line-height: 1.9;
    max-width: 800px;
    margin: 0 auto;
    font-size: 17px;
}

.value-cards {
    display: flex;
    justify-content: center;
    gap: 40px;
}

.value-card {
    flex: 1;
    max-width: 400px;
    background-color: #fff;
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-bottom: 4px solid transparent;
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
    border-bottom-color: #0073BB;
}

.value-card .icon {
    margin-bottom: 25px;
    text-align: center;
}

.value-card .icon img {
    width: 70px;
    height: 70px;
    padding: 15px;
    background-color: #f5f7fa;
    border-radius: 50%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s ease;
}

.value-card:hover .icon img {
    transform: rotate(10deg);
}

.value-card h3 {
    font-size: 22px;
    margin-bottom: 20px;
    font-weight: 600;
    text-align: center;
    color: #222;
}

.value-card p {
    color: #555;
    line-height: 1.8;
    font-size: 16px;
}

/* 客户案例部分 */
.case-studies {
    padding: 80px 0;
    background: linear-gradient(to right, #f9f9f9, #f5f7fa);
}

.case-header {
    margin-bottom: 20px;
    text-align: center;
}

.case-header h2 {
    font-size: 32px;
    font-weight: 600;
    color: #222;
    position: relative;
    display: inline-block;
}

.case-header h2:after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: #FF9900;
    margin: 15px auto 0;
}

.case-intro {
    text-align: center;
    margin-bottom: 50px;
}

.case-intro p {
    color: #555;
    max-width: 800px;
    margin: 0 auto;
    font-size: 17px;
}

.case-cards {
    display: flex;
    gap: 30px;
    justify-content: center;
}

.case-card {
    flex: 1;
    max-width: 500px;
    background-color: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-decoration: none;
    display: block;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
}

.case-img {
    height: 200px;
    background: linear-gradient(135deg, #FF9900, #FFC266);
    position: relative;
    overflow: hidden;
}

.case-img.second-case {
    background: linear-gradient(135deg, #0073BB, #66B2FF);
}

.industry-tag {
    position: absolute;
    top: 20px;
    right: 0;
    background-color: rgba(255, 255, 255, 0.9);
    color: #333;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 4px 0 0 4px;
    box-shadow: -3px 3px 10px rgba(0, 0, 0, 0.1);
}

.case-content {
    padding: 30px;
}

.case-content h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #333;
    font-weight: 600;
}

.case-content p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 25px;
    font-size: 16px;
}

.case-btn {
    display: inline-block;
    color: #0073BB;
    font-weight: 600;
    font-size: 16px;
    position: relative;
    padding-bottom: 5px;
    transition: color 0.3s ease;
}

.case-btn:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #0073BB;
    transition: width 0.3s ease;
}

.case-card:hover .case-btn {
    color: #FF9900;
}

.case-card:hover .case-btn:after {
    width: 100%;
    background-color: #FF9900;
}

/* 响应式设计 */
@media (max-width: 1024px) {    
    .value-cards {
        flex-direction: column;
        align-items: center;
    }
    
    .value-card {
        margin-bottom: 30px;
    }
    
    .banner h1 {
        font-size: 36px;
    }
    
    .case-cards {
        flex-direction: column;
        align-items: center;
    }
    
    .case-card {
        margin-bottom: 30px;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .banner {
        height: auto;
        padding: 80px 0;
    }
    
    .banner-image img {
        max-width: 100%;
    }
    
    .banner h1 {
        font-size: 28px;
    }
    
    .banner p {
        font-size: 16px;
        max-width: 100%;
    }
    
    .business-content p {
        max-width: 100%;
    }
    
    .solution-card {
        padding: 30px 20px;
    }
    
    .solution-card p {
        max-width: 100%;
    }
    
    .point h3 {
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .business-intro, 
    .solution-intro, 
    .solution-details, 
    .user-value {
        padding: 50px 0;
    }
    
    .banner h1 {
        font-size: 24px;
    }
    
    .point {
        padding: 20px;
    }
}

/* 动画样式 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.point.animated,
.value-card.animated,
.solution-card.animated,
.case-card.animated {
    animation: fadeInUp 0.8s ease forwards;
}

.img-caption {
    margin-top: 15px;
    color: #666;
    font-style: italic;
    text-align: center;
}

/* 响应式布局 */
@media (max-width: 991px) {
    .banner-flex-container {
        flex-direction: column;
    }
    
    .banner-text {
        text-align: center;
        padding-right: 0;
        margin-bottom: 30px;
    }
    
    .banner {
        height: auto;
        padding: 100px 0;
    }
}