html,
body {
    min-height: 100%;
}

body {
    margin: 0;
    color: #172033;
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    background: #eef3f8;
}

.not-found {
    min-height: 100vh;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 16px;
}

.not-found__panel {
    width: 100%;
    max-width: 520px;
    box-sizing: border-box;
    padding: 42px 34px;
    text-align: center;
    background: #fff;
    border: 1px solid #dce5ef;
    border-radius: 8px;
    box-shadow: 0 18px 45px rgba(30, 53, 78, 0.12);
}

.not-found__code {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 92px;
    height: 92px;
    margin-bottom: 22px;
    color: #fff;
    font-size: 28px;
    font-weight: 700;
    background: #2d7ff9;
    border-radius: 50%;
}

.not-found h1 {
    margin: 0;
    font-size: 26px;
    line-height: 1.35;
    font-weight: 700;
}

.not-found p {
    margin: 14px auto 0;
    max-width: 380px;
    color: #637083;
    font-size: 15px;
    line-height: 1.8;
}

.not-found__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-top: 28px;
}

.not-found__button {
    min-width: 112px;
    box-sizing: border-box;
    padding: 10px 18px;
    font-size: 14px;
    line-height: 20px;
    text-decoration: none;
    border-radius: 6px;
    transition: background-color 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}

.not-found__button {
    color: #fff;
    background: #2d7ff9;
    border: 1px solid #2d7ff9;
}

.not-found__button:hover,
.not-found__button:active {
    background: #1767dd;
    border-color: #1767dd;
}

@media screen and (max-width: 480px) {
    .not-found__panel {
        padding: 34px 22px;
    }

    .not-found__code {
        width: 78px;
        height: 78px;
        font-size: 24px;
    }

    .not-found h1 {
        font-size: 22px;
    }

    .not-found__actions {
        display: block;
    }

    .not-found__button {
        display: block;
        width: 100%;
        margin-top: 10px;
    }
}