:root {
    color-scheme: light;
    font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, sans-serif;
    color: #183153;
    background: #edf4ff;
}
* {
    box-sizing: border-box;
}
html,
body {
    min-height: 100%;
    margin: 0;
}
body {
    background: radial-gradient(circle at 12% 15%, rgba(69, 139, 255, .19), transparent 32rem),
        radial-gradient(circle at 88% 82%, rgba(59, 196, 156, .14), transparent 28rem),
        linear-gradient(145deg, #f7faff 0%, #eaf2ff 100%);
}
.landing {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 20px;
}
.hero {
    width: 100%;
    max-width: 760px;
    padding: 58px 52px 48px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, .82);
    border-radius: 28px;
    background: rgba(255, 255, 255, .9);
    box-shadow: 0 24px 70px rgba(31, 76, 143, .15);
    backdrop-filter: blur(18px);
}
.brand-mark {
    display: grid;
    place-items: center;
    width: 76px;
    height: 76px;
    margin: 0 auto 24px;
    border-radius: 24px;
    color: #fff;
    font-size: 38px;
    font-weight: 700;
    background: linear-gradient(145deg, #347ee8, #55a8ff);
    box-shadow: 0 14px 30px rgba(52, 126, 232, .28);
}
.eyebrow {
    margin: 0 0 12px;
    color: #6d84a4;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .16em;
}
h1 {
    margin: 0;
    color: #173050;
    font-size: clamp(30px, 5vw, 48px);
    line-height: 1.22;
    letter-spacing: .04em;
}
.subtitle {
    margin: 16px 0 0;
    color: #69809f;
    font-size: 18px;
}
.capabilities {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin: 32px 0;
}
.capabilities span {
    padding: 9px 17px;
    border: 1px solid #d8e6fb;
    border-radius: 999px;
    color: #386897;
    background: #f5f9ff;
    font-size: 14px;
}
.status {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: #23805e;
    font-size: 14px;
    font-weight: 700;
}
.status i {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #2fc48d;
    box-shadow: 0 0 0 6px rgba(47, 196, 141, .13);
}
.notice {
    max-width: 560px;
    margin: 26px auto 0;
    padding-top: 24px;
    border-top: 1px solid #e7eef8;
    color: #7d8fa8;
    font-size: 13px;
    line-height: 1.8;
}
@media (max-width: 560px) {
    .hero {
        padding: 42px 24px 36px;
        border-radius: 22px;
    }
    .brand-mark {
        width: 66px;
        height: 66px;
        border-radius: 20px;
        font-size: 32px;
    }
    .subtitle {
        font-size: 16px;
    }
}