* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Microsoft YaHei;
}



body {
    background: #050505;
    color: #fff;
}




.header {
    height: 80px;
    position: fixed;
    top: 0;
    width: 100%;
    padding: 0 8%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #050505dd;
    backdrop-filter: blur(15px);
    z-index: 99;
}



.logo {
    font-size: 30px;
    font-weight: bold;
}


    .logo span {
        color: #00ff88;
    }



nav a {
    color: #aaa;
    text-decoration: none;
    margin: 0 15px;
}



    nav a:hover {
        color: #00ff88;
    }

    nav a.active {
        color: #00ff88;
    }

.menu {
    display: none;
}



section {
    padding: 100px 8%;
}



h2 {
    font-size: 42px;
    margin-bottom: 45px;
}





.banner {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-image: linear-gradient( 90deg, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.45) 50%, rgba(0,0,0,0.1) 100% ), url("../picture/system.png");
    background-size: cover;
    background-position: center;
}



    .banner h1 {
        font-size: 65px;
        line-height: 1.2;
        margin: 25px 0;
    }



.tag {
    color: #00ff88;
    letter-spacing: 3px;
}



.banner p {
    color: #aaa;
    line-height: 2;
    font-size: 18px;
}



button {
    margin-top: 30px;
    padding: 15px 35px;
    background: #00ff88;
    border: 0;
    border-radius: 40px;
    font-weight: bold;
}





.dashboard {
    width: 400px;
    height: 400px;
    position: relative;
}



.box {
    position: absolute;
    padding: 35px;
    border: 1px solid #00ff88;
    background: #111;
    border-radius: 20px;
    animation: move 3s infinite;
}



    .box:nth-child(1) {
        top: 50px;
    }


    .box:nth-child(2) {
        right: 30px;
        top: 180px;
    }


    .box:nth-child(3) {
        bottom: 40px;
        left: 100px;
    }



@keyframes move {

    50% {
        transform: translateY(-15px);
    }
}





.map-box {
    height: 450px;
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 20px;
}



    .map-box div {
        background: #111;
        border: 1px solid #00ff88;
        padding: 30px;
        border-radius: 20px;
        display: flex;
        align-items: center;
        justify-content: center;
    }



.center {
    background: #00ff88 !important;
    color: #000;
}




.cards {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 25px;
}



    .cards div,
    .finance div,
    .risk-grid div,
    .data-grid div {
        background: #111;
        border: 1px solid #222;
        padding: 35px;
        border-radius: 20px;
    }



    .cards h3 {
        color: #00ff88;
        margin-bottom: 15px;
    }



.dark {
    background: #090909;
}





.timeline {
    display: flex;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
}



    .timeline span {
        padding: 25px;
        border: 1px solid #00ff88;
        border-radius: 30px;
    }



.finance,
.risk-grid,
.data-grid {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 20px;
}




.risk {
    background: #0a0a0a;
}





.api {
    text-align: center;
}



.code {
    background: #000;
    border: 1px solid #00ff88;
    padding: 40px;
    font-size: 20px;
    color: #00ff88;
    line-height: 2;
}





.arch {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}



    .arch div {
        background: #111;
        border: 1px solid #00ff88;
        padding: 30px;
    }




.demo {
    text-align: center;
    background: #00ff88;
    color: #000;
}



    .demo button {
        background: #000;
        color: white;
    }



footer {
    background: #000;
    padding: 50px;
    text-align: center;
    color: #777;
}





@media(max-width:900px) {


    nav {
        display: none;
    }


    .menu {
        display: block;
    }


    .banner {
        flex-direction: column;
        padding-top: 150px;
    }



        .banner h1 {
            font-size: 42px;
        }



    .dashboard {
        margin-top: 50px;
    }



    .map-box,
    .cards,
    .finance,
    .risk-grid,
    .data-grid {
        grid-template-columns: 1fr;
    }



    .arch {
        flex-direction: column;
    }
}

/* 友情链接 */

.friend-links {
    margin-top: 45px;
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}



    .friend-links a {
        min-width: 180px;
        padding: 14px 25px;
        background: rgba(0,0,0,.08);
        border: 1px solid rgba(0,0,0,.2);
        border-radius: 30px;
        color: #000;
        text-decoration: none;
        font-weight: 600;
        transition: .3s;
    }




        .friend-links a:hover {
            background: #000;
            color: #00ff88;
            transform: translateY(-5px);
        }

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


.faq {
    padding: 90px 10%;
    background: #050505;
    color: #fff;
}



    .faq h2 {
        text-align: center;
        font-size: 38px;
        margin-bottom: 50px;
        color: #ffffff;
    }




    .faq > div {
        max-width: 1000px;
        margin: 0 auto 20px;
        padding: 30px 35px;
        background: #111111;
        border-radius: 16px;
        border: 1px solid rgba(0,170,255,.18);
        transition: .35s ease;
    }




        .faq > div:hover {
            transform: translateY(-6px);
            border-color: #00aaff;
            box-shadow: 0 15px 40px rgba(0,170,255,.2);
        }



    .faq h3 {
        font-size: 21px;
        color: #fff;
        margin-bottom: 15px;
        font-weight: 600;
    }



    .faq p {
        font-size: 16px;
        color: #b8b8b8;
        line-height: 1.9;
        margin: 0;
    }

/* =========================
      SEO CONTENT
========================= */


.seo-content {
    padding: 80px 12%;
    background: #0b0b0b;
    color: #fff;
    text-align: center;
}




    .seo-content h2 {
        font-size: 36px;
        margin-bottom: 25px;
        color: #ffffff;
    }



    .seo-content p {
        max-width: 1000px;
        margin: auto;
        font-size: 17px;
        line-height: 2;
        color: #bdbdbd;
    }