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

html{
    font-size: 6px;
}

@media (min-width: 700px) {
    html{
        font-size: 8px;
    }
}

@media (min-width: 900px) {
    html{
        font-size: 10px;
    }
}

html,
body,
.banner
{
    height: 100%;
}

body{
    font-size: 1.6rem;
    font-family: 'Outfit', sans-serif;
    font-weight: 400;
}

.banner{
    display: grid;
    place-items: center;
    /* 渐变背景：主色 #166CD3 为主，辅色 #E5600B 为辅 */
    background: linear-gradient(135deg, #166CD3 0%, #166CD3 65%, #E5600B 100%);
    text-align: center;
    padding: 15px;
}

.banner__logo{
    width: 96px;
    max-width: 30vw;
    height: auto;
    display: block;
    position: absolute;
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.95;
}

@media (max-height: 470px){
    .banner__logo{
        display: none;
    }
}

.banner__title{
    --text-stroke: 1px;
    color: #ffffff;
    font-size: 12rem;
    font-weight: 800;
    text-shadow:
        calc(var(--text-stroke) * -1) calc(var(--text-stroke) * -1) 0px #000000,
        calc(var(--text-stroke) * -1) 1px 0px #000000,
        var(--text-stroke) calc(var(--text-stroke) * -1) 0px #000000,
        var(--text-stroke) var(--text-stroke) 0px #000000,
        0.8rem 0.6rem 0px #000000;
    margin-bottom: 3rem;
}

@media (max-width: 699px){
    .banner__title{
        line-height: 1;
    }
}

.banner__text{
    /* 提升对比度以适配深色背景 */
    color: rgba(255, 255, 255, 0.92);
    font-size: 2.8rem;
    line-height: 1.6;
    max-width: 60rem;
    margin-left: auto;
    margin-right: auto;
}