/* =========================================
   1. Banner 和 Tab 区域
   ========================================= */
.banner_swiper {
    width: 100%;
    z-index: 2;
    border-bottom-left-radius: 75px;
    position: relative;
}

.banner_swiper .swiper-slide {
    position: relative;
}

.banner_swiper img {
    width: 100%;
    cursor: default;
}

.banner_text {
    position: absolute;
    top: 50%;
    left: 25%;
    transform: translate(-50%, -50%);
    z-index: 3;
    color: #fff;
}

.text_style_1 {
    font-size: 32px;
    font-weight: bold;
    letter-spacing: 3px;
}

.tab_list {
    width: 100%;
    height: 60px;
    border-bottom: 2px solid #f6f6f6;
    display: flex;
    justify-content: center;
    margin-bottom: 0;
}

.tab_style {
    display: flex;
    align-items: center;
    /* 文字笔直居中 */
    justify-content: center;
    /* 文字水平居中 */
    padding: 0 20px;
    color: black;
    letter-spacing: 0.4px;
    position: relative;
    height: 100%;
    /* 强行撑满父级的 60px */
    box-sizing: border-box;
    /* 让底部边框算在总高度内 */
    border-bottom: solid 3px transparent;
    /* ?要害：用透明色占位，，，，，，消除白边和跳动? */
}

.tab_style:hover {
    font-weight: bold;
    background-color: var(--theme-color-blue);
    color: #fff;
}

.tab_active {
    font-weight: bold;
    background-color: var(--theme-color-blue);
    color: #fff;
    border-bottom: solid 3px var(--theme-color-orange);
}


/* =========================================
   2. 正文区域
   ========================================= */

:root {
    /* --theme-color-blue: #002c5f;
    --theme-color-orange: #f37021; */
    --text-color-gray: #555555;
    --bg-light-gray: #f8f9fa;
}

/* 块级容器：坚持100%宽度以铺满配景致 */
.block {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    padding: 80px 0;
    margin-bottom: 0;
    width: 100%;
    box-sizing: border-box;
}

/* 配景致交替铺满全屏：奇数白底，，，，，，偶数浅灰底 */
.block:nth-of-type(odd) {
    background-color: #ffffff;
}

.block:nth-of-type(even) {
    background-color: var(--bg-light-gray);
}

.block>* {
    width: 80%;
    max-width: 1200px;
}

/* 问题美化 */
.common_title {
    font-size: 36px;
    font-weight: 800;
    color: var(--theme-color-blue);
    letter-spacing: 2px;
    margin-bottom: 30px;
    text-align: center;
    position: relative;
    padding-bottom: 15px;
    text-transform: uppercase;
}

.common_title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--theme-color-orange);
    border-radius: 2px;
}

.common_sub_title {
    font-size: 22px;
    font-weight: bold;
    color: var(--theme-color-blue);
    letter-spacing: 1px;
    margin-top: 30px;
    margin-bottom: 15px;
    text-align: center;
}

/* 文本排版优化 */
.common_text {
    color: var(--text-color-gray);
    text-align: center;
    font-weight: 400;
    margin-bottom: 40px;
    line-height: 1.8;
    font-size: 16px;
    max-width: 900px;
    /* PC规则文不宜过宽，，，，，，凌驾900px会截断，，，，，，更适合阅读 */
    margin-left: auto;
    margin-right: auto;
}

/* 图片现代感提升 */
.block img {
    height: auto;
    display: block;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    margin: 0 auto 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.block img:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

/* 扫除 LOGO 样式受上方图片通用样式的滋扰 */
.service_slogen_logo {
    box-shadow: none !important;
    border-radius: 0 !important;
    margin-bottom: 20px !important;
    max-width: 450px !important;
}

.service_slogen_logo:hover {
    transform: none !important;
}

/* Slogan 专属区域微调 */
.service_slogen {
    display: block;
    font-size: 40px;
    font-weight: 900;
    letter-spacing: 2px;
    color: #EEECE1;
    text-shadow:
        0 1px 0 #ffffff,
        0 -1px 0 #c9c9c9,
        2px 0 0 #d0d0d0,
        2px 2px 2px rgba(0, 0, 0, 0.15);
    margin-bottom: 20px;
    text-align: center;
}

.service_sloge_explain {
    display: flex;
    gap: 3rem;
    font-size: 32px;
    font-weight: bold;
    margin-top: 10px;
    margin-bottom: 40px;
    justify-content: center;
    flex-wrap: wrap;
}

.service_sloge_explain span::first-letter {
    color: var(--theme-color-orange);
    font-size: 1.1em;
}

/* =========================================
   3. 响应式规则 (平板与手机端)
   ========================================= */
@media screen and (max-width: 991px) {

    /* Banner/Tab 响应式调解 */
    .banner_text {
        position: absolute;
        top: 50%;
        left: 4%;
        transform: translateY(-50%);
        z-index: 3;
        color: #fff;
    }

    .text_style_1 {
        font-size: 16px;
        text-wrap: nowrap;
    }

    .tab_list {
        margin-bottom: 0px;
        height: 45px;
    }

    .tab_style {
        font-size: 14px;
        padding: 0 10px;
        min-width: 70px;
        text-align: center;
    }

    /* ? 正文响应式调解 ? */
    .block {
        padding: 50px 15px;
    }

    /* 移动端增添左右 15px 的清静边距 */

    .block>* {
        width: 100%;
        /* 移动端屏幕小，，，，，，内容恢复占有整屏宽度（加上父级的 15px padding） */
    }

    .common_title {
        font-size: 28px;
        letter-spacing: 1px;
        margin-bottom: 25px;
        padding-bottom: 12px;
    }

    .common_title::after {
        width: 45px;
        height: 3px;
    }

    .common_sub_title {
        font-size: 18px;
        margin-top: 25px;
        margin-bottom: 12px;
    }

    .common_text {
        font-size: 14px;
        line-height: 1.7;
        margin-bottom: 30px;
    }

    .block_1 .common_text {
        font-size: 1rem;
    }

    .service_slogen {
        font-size: 30px;
    }

    .service_sloge_explain {
        gap: 1.5rem;
        font-size: 20px;
        margin-bottom: 25px;
    }

    .block img {
        border-radius: 8px;
    }
}

/* 针对极小手机屏幕微调 */
@media screen and (max-width: 575px) {
    .block {
        padding: 40px 15px;
    }

    .service_sloge_explain {
        gap: 1rem;
        font-size: 16px;
    }

    .service_slogen {
        font-size: 24px;
    }
}

@media screen and (max-width: 399px) {
    .tab_style {
        font-size: 11px;
        min-width: 68px;
    }
}<!--耗时1777571758.036秒-->