/* 通用容器 */
.container {
    width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
    box-sizing: border-box;
}

.section-title {
    text-align: center;
    font-size: 30px;
    color: #002855;
    margin-bottom: 12px;
    position: relative;
}

    .section-title::after {
        content: "";
        width: 80px;
        height: 3px;
        background: #0066cc;
        display: block;
        margin: 15px auto 30px;
    }

.section-sub {
    text-align: center;
    color: #666;
    font-size: 16px;
    margin-bottom: 50px;
}
/* 公司简介板块 */
.intro-wrap {
    display: flex;
    gap: 50px;
    align-items: center;
}

.intro-text {
    flex: 1;
}

    .intro-text h3 {
        font-size: 22px;
        color: #002855;
        margin-bottom: 20px;
    }

    .intro-text p {
        line-height: 2;
        font-size: 15px;
        color: #444;
        margin-bottom: 16px;
        text-indent: 2em;
    }

.intro-img {
    flex: 1;
    height: 360px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 20px #ddd;
}

    .intro-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
/* 核心优势卡片 */
.advantage-box {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 25px;
    margin-top: 20px;
}

.adv-card {
    background: #fff;
    padding: 35px 20px;
    text-align: center;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,102,204,0.08);
    transition: 0.3s all;
}

    .adv-card:hover {
        transform: translateY(-6px);
        box-shadow: 0 8px 24px rgba(0,102,204,0.15);
    }

    .adv-card i {
        font-size: 42px;
        color: #0066cc;
        margin-bottom: 18px;
    }

    .adv-card h4 {
        font-size: 18px;
        color: #002855;
        margin-bottom: 10px;
    }

    .adv-card span {
        font-size: 14px;
        color: #666;
        line-height: 1.7;
    }
/* 航司合作板块 */
.airline-wrap {
    background: #002855;
    padding: 60px 0;
    margin: 70px 0;
}

    .airline-wrap .section-title {
        color: #fff;
    }

    .airline-wrap .section-sub {
        color: #ccc;
    }

.airline-list {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}

.air-item {
    width: 140px;
    height: 80px;
    background: #fff;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: #002855;
    padding: 8px;
    box-sizing: border-box;
}
    /* 限制航司图片大小，防止溢出 */
    .air-item img {
        max-width: 90px;
        max-height: 45px;
        object-fit: contain;
        margin-right: 6px;
    }

/* 服务体系 */
.service-step {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
}

.step-item {
    text-align: center;
    width: 22%;
}

.step-num {
    width: 44px;
    height: 44px;
    line-height: 44px;
    border-radius: 50%;
    background: #0066cc;
    color: #fff;
    font-size: 18px;
    margin: 0 auto 15px;
}

.step-item h4 {
    color: #002855;
    margin-bottom: 8px;
}

/* ========== 移动端媒体查询【修复语法+布局】 ========== */
@media (max-width:768px) {
    .container {
        width: 100%;
        padding: 30px 15px; /* 手机减小上下内边距 */
    }

    .section-title {
        font-size: 24px;
    }

    .intro-wrap {
        flex-direction: column;
        gap: 30px;
    }

    .intro-img {
        height: 240px; /* 手机降低图片高度 */
    }

    .advantage-box {
        grid-template-columns: repeat(2,1fr);
        gap: 15px;
    }

    .adv-card {
        padding: 25px 15px;
    }

    .service-step {
        flex-wrap: wrap;
        gap: 25px;
        justify-content: center;
    }

    .step-item {
        width: 45%;
    }

    .air-item {
        width: 120px;
        height: 70px;
    }

    .intro-text p {
        text-indent: 1.5em; /* 移动端段落首行缩进缩小 */
    }
}