:root {
    --bg: #0b0e17;
    --bg-2: #0e1220;
    --text: #e9eeff;
    --muted: #c6d3ff;
    --subtle: #a8b4d9;
    --card: rgba(255,255,255,.06);
    --card-border: rgba(255,255,255,.18);
    --brand: #4879ff;
    --brand-2: #7aa8ff;
    --ring: rgba(104,149,255,.5);
    --radius: 16px;
}

* {
    box-sizing: border-box
}

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font: 16px/1.65 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Inter,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif
}

a {
    color: inherit;
    text-decoration: none
}

img {
    max-width: 100%;
    display: block
}

.container {
    width: min(1180px,92%);
    margin: 0 auto
}

/* 顶部导航（白字透明） */
header {
    position: fixed;
    inset: 0 0 auto 0;
    height: 64px;
    z-index: 40;
    background: linear-gradient(180deg,rgba(0,0,0,.45),rgba(0,0,0,0));
}

.nav {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between
}

.brand {
    display: flex;
    align-items: center;
    gap: .6rem;
    font-weight: 800;
    letter-spacing: .3px
}

    .brand img {
        height: 48px;
        width: auto
    }

.nav ul {
    display: flex;
    gap: 1.6rem;
    list-style: none;
    margin: 0;
    padding: 0
}

.nav a {
    color: #fff;
    opacity: .95
}

.cta .btn {
    background: linear-gradient(180deg,#4c79ff,#3463f3);
    padding: .7rem 1rem;
    border-radius: 999px;
    font-weight: 700;
    box-shadow: 0 10px 26px rgba(52,99,243,.35)
}

/* 英雄区（星空图+渐变遮罩）
.hero {
    position: relative;
    background: #0a0f1c url('image/img-banner.png') center/cover no-repeat;
    min-height: 540px;
    display: flex;
    align-items: flex-end
}
*/
.hero {
    height: 600px;
    position: relative;
    margin-top: 0px;
    background-image: url('../image/img-banner.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
}

    .hero::before {
        content: "";
        position: absolute;
        inset: 0;
    }

    .hero .inner {
        position: relative;
        z-index: 1;
        padding: 120px 0 36px
    }

    .hero h1 {
        margin: 0 0 10px;
        font-size: clamp(28px,4.8vw,44px);
        line-height: 1.25;
        text-align: center;
        font-weight: 900
    }

    .hero p {
        margin: 0 auto 20px;
        text-align: center;
        max-width: 820px;
        color: #d6e0ff
    }

    .hero .actions {
        display: flex;
        gap: 12px;
        justify-content: center;
        margin: 18px 0
    }

.contact-btn {
    background: linear-gradient(45deg, #2852ff, #2852ff);
    color: white;
    border: none;
    padding: 12px 24px;
    margin-top: 6px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: transform 0.3s ease;
}

.btn.outline {
    background: rgba(40, 82, 255, .6);
    color: white;
    border: none;
    padding: 12px 24px;
    margin-top: 6px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: transform 0.3s ease;
}

/* 统计条（单个玻璃容器） */
.stats-wrap {
    display: flex;
    justify-content: center;
    margin-top: 12px
}

.stats {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 28px;
    background: rgba(255,255,255,.06);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 18px;
    padding: 16px 28px;
    max-width: 860px;
    width: 100%
}

.stat {
    text-align: center
}

    .stat b {
        display: block;
        font-size: 24px;
        margin-bottom: 4px
    }

    .stat span {
        color: #d2dcff
    }

/* 核心服务（暗底+网格地面+标题左右光晕） */
section {
    padding: 68px 0
}

.services {
    background: url('../image/img-wangge.png') center/cover no-repeat;
    position: relative;
    overflow: hidden
}

.title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin: 0 0 10px
}

    .title::before, .title::after {
        content: "";
        width: 60px;
        height: 14px;
        border-radius: 999px;
        background: radial-gradient(120px 14px at 20% 50%, rgba(78,120,255,.9), transparent 70%);
        filter: blur(.4px)
    }

    .title span {
        font-size: 28px;
        font-weight: 900
    }

.subtitle {
    text-align: center;
    color: #cdd7ff;
    margin: 0 0 34px
}

/* 卡片 */
.grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 22px
}

.card {
    background: rgb(255, 255, 255, 0.02);
    border: 1px solid rgba(255,255,255,.22);
    border-radius: 18px;
    padding: 22px;
    text-align: center;
    transition: .2s
}

    .card:hover {
        transform: translateY(-3px);
        border-color: var(--ring);
        box-shadow: 0 16px 45px rgba(0,0,0,.35)
    }

.icon {
    width: 96px;
    height: 96px;
    /*border-radius: 20px;*/
    margin: 0 auto 14px;
    display: grid;
    place-items: center;
    /*background: linear-gradient(180deg, rgba(255,255,255,.12), rgba(255,255,255,.02))*/
}

    .icon img {
        width: 96px;
        height: 96px;
        object-fit: contain
    }

.card h3 {
    margin: 0 0 6px
}

.card p {
    margin: 0 0 14px;
    color: #c8d4ff;
    min-height: 46px
}

.small-btn {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    font-weight: 700;
    font-size: .92rem;
    padding: .55rem .8rem;
    border-radius: 999px;
    background: linear-gradient(180deg,#4c79ff,#3566ff);
    border: 1px solid rgba(255,255,255,.15)
}

/* 页脚 */
footer {
    background: #0a0f1c;
    border-top: 1px solid rgba(255,255,255,.08)
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1.2fr;
    gap: 18px
}

footer h4 {
    margin: 0 0 10px;
    font-size: 16px
}

footer ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 6px;
    color: #d0dafd
}

.copyright {
    text-align: center;
    padding: 16px 0;
    color: #aebdf0;
    border-top: 1px solid rgba(255,255,255,.08);
    margin-top: 22px;
    font-size: 14px
}

/* 响应式 */
@media (max-width: 960px) {
    .grid {
        grid-template-columns: 1fr 1fr
    }

    .stats {
        grid-template-columns: repeat(2,1fr)
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr
    }
}

@media (max-width: 640px) {
    header {
        background: rgba(0,0,0,.5)
    }

    .nav ul {
        display: none
    }

    .grid {
        grid-template-columns: 1fr
    }

    .stats {
        grid-template-columns: 1fr
    }

    .hero {
        min-height: 520px
    }

        .hero .inner {
            padding: 96px 0 28px
        }

    .footer-grid {
        grid-template-columns: 1fr
    }
}