* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary-color: #1a56db;
    --secondary-color: #e11d48;
    --accent-color: #0ea5e9;
    --light-gray: #f3f4f6;
    --dark-gray: #4b5563;
    --white: #ffffff;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    background-color: #f9fafb;
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
}

/* 通用样式 */
.container-business2 {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;

}

.section-business2 {
    padding: 80px 0;
    position: relative;
}

h1.business2, h2.business2, h3.business2 {
    text-align: center;
    margin-bottom: 20px;
    font-weight: 700;
}

h1.business2 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    line-height: 1.2;
}

h2.business2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
}

h3.business2 {
    font-size: clamp(1.3rem, 3vw, 1.8rem);
    font-weight: 600;
    margin: auto 0;
}

p.business2 {
    font-size: clamp(1rem, 2vw, 1.1rem);
    margin-bottom: 15px;
}
p.business3{
    font-size: clamp(1.3rem, 2vw, 1.8rem);
    margin-bottom: 15px;
}
.text-center-business2 {
    text-align: center;
}

/* 第1部分：Banner */
.banner-section-business2 {
    height: 100vh;
    min-height: 600px;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)),
                url('../../static/new_img/主营业务-外贸建站/背景.png');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
    position: relative;
}

.banner-content-business2 {
    max-width: 900px;
    padding: 20px;
    z-index: 10;
}

/* 第2部分：服务导航 - 更新竖线装饰 */
.services-section-business2 {
    background-color: black;
}

.breadcrumb-business2 {
    display: flex;
    margin-bottom: 40px;
    font-size: 1rem;
    color: var(--dark-gray);
}

.breadcrumb-business2 a {
    color: var(--primary-color);
    text-decoration: none;
    margin-right: 5px;
}

.breadcrumb-business2 span {
    margin: 0 5px;
}

/* 更新：四条竖线装饰 */
.decoration-lines-container-business2 {
    position: relative;
    margin: 30px 0 40px;
    display: flex;
    justify-content: center;
}

.decoration-lines-business2 {
    position: relative;
    display: inline-block;
    padding: 0 50px;
}
.decoration-lines-business2 .line-left,
.decoration-lines-business2 .line-right {
    content: "";
    position: absolute;
    height: 40px;
    width: 2px;
    background: red;
    top: 50%;
    transform: translateY(-50%);
}

/* 左侧竖线 */
.decoration-lines-business2 .line-left {
    left: 0;
    height: 25px; /* 第一条较短 */
}

.decoration-lines-business2 .line-left::after {
    content: "";
    position: absolute;
    height: 35px; /* 第二条较长 */
    width: 2px;
    background: red;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
}

/* 右侧竖线 */
.decoration-lines-business2 .line-right {
    right: 0;
    height: 35px; /* 第一条较长 */
}

.decoration-lines-business2 .line-right::after {
    content: "";
    position: absolute;
    height: 25px; /* 第二条较短 */
    width: 2px;
    background: red;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
}

.services-grid-business2 {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-top: 50px;
}

.service-item-business2 {
    width: calc(14% - 20px);
    min-width: 120px;
    padding: 20px 10px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    border: 2px solid #e5e7eb;
    border-radius: 0 15px 0 15px;
    overflow: hidden;
}
/* 默认第一个高亮 */
/* 更新：悬停效果 */
.service-item-business2:hover {
    border-color: red;
    box-shadow: var(--box-shadow);
    transform: translateY(-5px);
}

/* 更新：左上角和右下角边框加粗 */
.service-item-business2::before,
.service-item-business2::after {
    content: "";
    position: absolute;
    width: 14.28%; /* 七分之一 */
    height: 14.28%; /* 七分之一 */
    transition: var(--transition);
    z-index: 2;
}

.service-item-business2::before {
    top: 0;
    left: 0;
    border-top: 3px solid transparent;
    border-left: 3px solid transparent;
}

.service-item-business2:hover::before {
    border-top: 3px solid red;
    border-left: 3px solid red;
}

.service-item-business2::after {
    bottom: 0;
    right: 0;
    border-bottom: 3px solid transparent;
    border-right: 3px solid transparent;
}

.service-item-business2:hover::after {
    border-bottom: 3px solid red;
    border-right: 3px solid red;
}

.service-icon-business2 {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 15px;
}

.service-title-business2 {
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 1rem;
    color: white;
}

.service-line-business2 {
    width: 40px;
    height: 2px;
    background: white;
    margin: 0 auto;
}

/* 第3部分：解决方案 */
.solutions-section-business2 {
    background: url('../../static/new_img/主营业务-外贸建站/山峰背景.png');
    background-size: cover;
    background-position: center;
    color: var(--white);
    padding: 100px 0;
    border: 2px solid black;
}

.solutions-content-business2 {
    /* max-width: 900px; */
    margin: 0 auto;
    text-align: center;
}

.features-box-business2 {
    background: rgba(243, 244, 246, 0.2);
    border-radius: 10px;
    padding: 20px;
    margin: 40px 0;
    display: inline-block;
}

.features-list-business2 {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
}

.feature-item-business2 {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px 20px;
    border-radius: 30px;
    font-weight: 500;
}

.solution-cards-business2 {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 25px;
    margin-top: 50px;
}

.solution-card-business2 {
    width: calc(25% - 25px);
    min-width: 220px;

    color: white;
    border-radius: 10px;
    border: 1px solid white;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    padding: 25px 20px;
    text-align: center;
}

.solution-card-header-business2 {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--light-gray);
}

.solution-card-title-business2 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-top: 10px;
}

.solution-card-subtitle-business2 {
    color: var(--secondary-color);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.solution-card-line-business2 {
    width: 60px;
    height: 2px;
    background: red;
    margin: 10px auto;
}

.solution-feature-business2 {
    font-size: 0.9rem;
    margin-bottom: 8px;
    text-align: left;
    padding-left: 60px;
    position: relative;
}

.solution-feature-business2::before {
    content: "•";
    position: absolute;
    left: 40px;
    color: var(--primary-color);
}

/* 第4部分：案例和联系 - 更新竖线位置 */
.contact-section-business2 {
    background: black;
    color: white;
}

.contact-container-business2 {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
}

.case-studies-business2 {
    flex: 1;
    min-width: 300px;
    position: relative;
    padding-right: 40px; /* 为竖线留出空间 */
}

.case-item-business2 {

    padding: 25px;
    margin-bottom: 25px;
    border-radius: 8px;
    box-shadow: var(--box-shadow);
    position: relative;
    padding-left: 40px;
}

.case-title-business2 {
    font-weight: 700;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

/* 更新：竖线位置和样式 */
.vertical-line-business2 {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    width: 2px;
    background: white;
}

.dots-business2 {
    position: relative;
    height: 100%;
}

.dot-business2 {
    position: absolute;
    width: 12px;
    height: 12px;
    background: white;
    border-radius: 50%;
    right: -5px;
    transform: translateY(-50%);
    z-index: 10;
    border: 2px solid var(--white);
}

/* 更新：联系表单布局 */
.contact-form-business2 {
    flex: 1;
    min-width: 300px;
    padding: 120px 40px 40px 40px;
    border-radius: 10px;
    box-shadow: var(--box-shadow);
}

.form-group-business2 {
    margin-bottom: 25px;
}

label.business2 {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

input.business2 {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #d1d5db;
    border-radius: 6px 0 0 6px;
    font-size: 1rem;
}

/* 更新：按钮和输入框水平排列 */
.form-row-business2 {
    display: flex;
    gap: 0;
}

.form-row-business2 .form-group-business2 {
    flex: 1;
    margin-bottom: 0;
}

.submit-btn-business2 {
    background: red;
    color: var(--white);
    border: none;
    padding: 4px 14px;
    font-size: 1.1rem;
    border-radius: 0 6px 6px 0;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    white-space: nowrap;
    height: 47px;
    left: 0;
}

.submit-btn-business2:hover {
    background: #0c419f;
}

/* 第5部分：案例展示 */
.portfolio-section-business2 {
    background: black;
}

.portfolio-grid-business2 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 50px;
}

.portfolio-item-business2 {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    height: 300px;
    box-shadow: var(--box-shadow);
}

.portfolio-img-business2 {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-overlay-business2 {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.7);
    padding: 20px;
    transform: translateY(100%);
    transition: var(--transition);
}

.portfolio-item-business2:hover .portfolio-overlay-business2 {
    transform: translateY(0);
}

.portfolio-item-business2:hover .portfolio-img-business2 {
    transform: scale(1.05);
}

.portfolio-title-business2 {
    color: var(--white);
    font-weight: 600;
    font-size: 1.2rem;
}

.portfolio-category-business2 {
    color: var(--accent-color);
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .portfolio-grid-business2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .service-item-business2 {
        width: calc(25% - 20px);
    }

    .solution-card-business2 {
        width: calc(50% - 25px);
    }
}

@media (max-width: 768px) {
    .section-business2 {
        padding: 60px 0;
    }

    .portfolio-grid-business2 {
        grid-template-columns: 1fr;
    }

    .service-item-business2 {
        width: calc(33% - 20px);
    }

    .solution-card-business2 {
        width: 100%;
    }

    .contact-container-business2 {
        flex-direction: column;
    }

    .vertical-line-business2 {
        display: none;
    }
}

@media (max-width: 576px) {
    .service-item-business2 {
        width: calc(50% - 20px);
    }

    .features-list-business2 {
        flex-direction: column;
        align-items: center;
    }

    .form-row-business2 {
        flex-direction: column;
    }
}