/* =====================================
 老挝支付系统功能优势页面 CSS
 Laos Payment System Function
 PC + Mobile Responsive
===================================== */



/* =====================
 全局
===================== */


* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}


html {
    scroll-behavior: smooth;
}



body {
    font-family: "Microsoft YaHei", Arial, sans-serif;
    background: #020817;
    color: #fff;
    overflow-x: hidden;
}



p {
    color: #cbd5e1;
    line-height: 1.9;
}



a {
    color: #fff;
    text-decoration: none;
}







/* =====================
背景
===================== */


.bg-animation {
    position: fixed;
    inset: 0;
    z-index: -2;
    background: radial-gradient( circle at top, #164b85, #020817 65% );
}







/* =====================
HEADER
===================== */


.header {
    height: 80px;
    padding: 0 8%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: absolute;
    top: 0;
    width: 100%;
    z-index: 99;
}




.logo {
    font-size: 32px;
    font-weight: 900;
    letter-spacing: 2px;
    color: #00eaff;
}



    .logo span {
        color: #fff;
    }





.nav {
    display: flex;
    gap: 35px;
}



    .nav a {
        transition: .3s;
    }



        .nav a:hover {
            color: #00eaff;
        }


    /* ==========================
 当前导航选中状态
========================== */


    .nav a {
        position: relative;
        padding: 10px 18px;
        border-radius: 25px;
        transition: .35s;
    }



        /* 鼠标经过 */

        .nav a:hover {
            color: #00eaff;
            background: rgba(0,234,255,.08);
        }



        /* 当前页面 */

        .nav a.active {
            color: #00eaff;
            background: linear-gradient( 90deg, rgba(0,234,255,.18), rgba(37,99,235,.25) );
            border: 1px solid rgba(0,234,255,.45);
            box-shadow: 0 0 15px rgba(0,234,255,.35), inset 0 0 15px rgba(0,234,255,.15);
        }



            /* 底部发光线 */

            .nav a.active::after {
                content: "";
                position: absolute;
                left: 50%;
                bottom: 3px;
                width: 35px;
                height: 2px;
                transform: translateX(-50%);
                background: #00eaff;
                box-shadow: 0 0 10px #00eaff;
                border-radius: 10px;
            }


.menu-btn {
    display: none;
    font-size: 30px;
    color: #00eaff;
}










/* =====================
Hero Banner
===================== */


.hero {
    height: 850px;
    padding: 170px 8%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient( 120deg, rgba(0,234,255,.08), transparent );
}



.hero-content {
    max-width: 700px;
}



    .hero-content h1 {
        font-size: 58px;
        line-height: 1.2;
        background: linear-gradient( 90deg, #00eaff, #8b5cf6 );
        -webkit-background-clip: text;
        color: transparent;
    }



    .hero-content h2 {
        font-size: 32px;
        margin: 25px 0;
    }



    .hero-content p {
        font-size: 18px;
    }





.btn {
    margin-top: 35px;
    padding: 15px 45px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 40px;
    background: linear-gradient( 90deg, #00eaff, #2563eb );
    box-shadow: 0 0 35px rgba(0,234,255,.6);
}









/* =====================
科技球
===================== */


.tech-box {
    width: 380px;
    height: 380px;
    position: relative;
}




.circle {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    border: 2px solid #00eaff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 35px;
    box-shadow: 0 0 80px rgba(0,234,255,.8);
    animation: rotate 10s linear infinite;
}



@keyframes rotate {


    from {
        transform: rotate(0);
    }

    to {
        transform: rotate(360deg);
    }
}



.data-card {
    position: absolute;
    right: 0;
    bottom: 40px;
    padding: 25px;
    background: rgba(255,255,255,.12);
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,.2);
    backdrop-filter: blur(10px);
}










/* =====================
公共区域
===================== */


.section {
    padding: 90px 8%;
}



.dark {
    background: linear-gradient( 180deg, #020817, #071b38 );
}





.title {
    text-align: center;
    font-size: 40px;
    margin-bottom: 50px;
    background: linear-gradient( 90deg, #fff, #00eaff );
    -webkit-background-clip: text;
    color: transparent;
}











/* =====================
系统架构
===================== */


.architecture {
    max-width: 650px;
    margin: auto;
    padding: 45px;
    text-align: center;
    font-size: 25px;
    line-height: 2.3;
    background: rgba(255,255,255,.08);
    border: 1px solid #00eaff;
    border-radius: 25px;
    box-shadow: 0 0 40px rgba(0,234,255,.2);
}











/* =====================
功能介绍
===================== */


.feature-box {
    max-width: 900px;
    margin: auto;
    padding: 45px;
    border-radius: 25px;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.15);
}




    .feature-box h3 {
        font-size: 28px;
        color: #00eaff;
        margin-bottom: 20px;
    }




.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 30px;
}



    .tags span,
    .tags {
        color: #00eaff;
    }







/* =====================
通用卡片
===================== */


.grid {
    display: grid;
    gap: 25px;
}



    .grid.three {
        grid-template-columns: repeat(3,1fr);
    }



    .grid.four {
        grid-template-columns: repeat(4,1fr);
    }




.card {
    padding: 35px;
    text-align: center;
    border-radius: 20px;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.15);
    transition: .4s;
}



    .card:hover {
        transform: translateY(-10px);
        border-color: #00eaff;
        box-shadow: 0 0 35px rgba(0,234,255,.3);
    }










/* =====================
订单模块
===================== */


.feature-list {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 25px;
}



    .feature-list div {
        padding: 35px;
        text-align: center;
        border-radius: 20px;
        background: rgba(255,255,255,.08);
        border: 1px solid rgba(255,255,255,.15);
    }











/* =====================
API中心
===================== */


.api-box {
    max-width: 700px;
    margin: auto;
    display: grid;
    grid-template-columns: repeat(2,1fr);
    gap: 25px;
}


    .api-box div {
        padding: 35px;
        text-align: center;
        font-size: 22px;
        border-radius: 20px;
        background: rgba(0,234,255,.08);
        border: 1px solid #00eaff;
    }











/* =====================
风险控制
===================== */


.risk {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 25px;
}



    .risk div {
        padding: 35px;
        text-align: center;
        border-radius: 20px;
        background: rgba(255,255,255,.08);
        font-size: 20px;
    }











/* =====================
数据分析
===================== */


.analysis {
    max-width: 500px;
    margin: auto;
    padding: 45px;
    text-align: center;
    font-size: 26px;
    line-height: 2;
    border-radius: 25px;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.2);
}









/* =====================
未来趋势
===================== */


.future {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 25px;
}


    .future div {
        padding: 35px;
        text-align: center;
        border-radius: 20px;
        background: rgba(255,255,255,.08);
        border: 1px solid rgba(255,255,255,.15);
    }









/* =====================
内容盒
===================== */


.content-box {
    max-width: 900px;
    margin: auto;
    padding: 45px;
    border-radius: 25px;
    background: rgba(255,255,255,.08);
}










/* =====================
FAQ
===================== */


.faq {
    max-width: 900px;
    margin: auto;
}



    .faq h3 {
        color: #00eaff;
        margin-top: 35px;
        font-size: 20px;
    }



    .faq p {
        padding-top: 15px;
    }









/* =====================
Footer
===================== */


footer {
    padding: 100px 20px;
    text-align: center;
    background: linear-gradient( 120deg, #071b38, #020817 );
}



    footer h2 {
        font-size: 40px;
        margin-bottom: 20px;
    }









/* =====================
友情链接
===================== */


.friend-links {
    margin: 40px auto;
    max-width: 900px;
}



    .friend-links h3 {
        color: #00eaff;
        margin-bottom: 20px;
    }



.links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
}


    .links a {
        padding: 10px 22px;
        border-radius: 30px;
        background: rgba(0,200,255,.08);
        border: 1px solid rgba(0,220,255,.3);
        transition: .3s;
    }



        .links a:hover {
            background: #00d9ff;
            color: #001018;
        }










/* =====================
移动端
===================== */


@media(max-width:900px) {


    .header {
        padding: 0 20px;
    }



    .menu-btn {
        display: block;
    }



    .nav {
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        display: none;
        flex-direction: column;
        padding: 25px;
        background: #06152d;
    }



        .nav.show {
            display: flex;
        }




    .hero {
        height: auto;
        padding: 120px 25px 60px;
        flex-direction: column;
        text-align: center;
    }



    .hero-content h1 {
        font-size: 36px;
    }


    .hero-content h2 {
        font-size: 22px;
    }


    .tech-box {
        margin-top: 60px;
        width: 230px;
        height: 230px;
    }



    .circle {
        width: 180px;
        height: 180px;
        font-size: 20px;
    }




    .section {
        padding: 60px 20px;
    }




    .title {
        font-size: 30px;
    }




    .grid.three,
    .grid.four,
    .feature-list,
    .risk,
    .future {
        grid-template-columns: 1fr;
    }



    .api-box {
        grid-template-columns: 1fr;
    }



    .architecture {
        font-size: 18px;
        padding: 25px;
    }



    .feature-box {
        padding: 25px;
    }



    .btn {
        width: 100%;
    }



    footer h2 {
        font-size: 28px;
    }
}