body {
    background: #101010;
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
    color: #f8f8f8;
}

.roadmap {
    display: flex;
    width: 100%;
    max-width: 1920px;
    margin: 0 auto;
}

.left {
    width: 50%;
    padding: 64px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    flex: 1 0 50%;
    background-image: url('/assets/img/bg.png');
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
}

.right {
    padding: 64px;
    box-sizing: border-box;
    position: relative;
}

.head {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    font-size: 24px;
    font-weight: 500;
}

.head img {
    width: 64px;
    height: auto;
}

.right {
    padding-top: 72px;
}

.section {
    position: relative;
    width: 100%;
}

.title {
    width: 100%;
    transform: translateY(calc(100% - 16px));
    letter-spacing: -.05em;
    position: sticky;
    top: 96px;
    margin-top: 320px;
    margin-left: calc(-100% - 128px);
    height: 0;
}

.title h2 {
    font-size: 96px;
    margin-bottom: 8px;
    font-weight: 600;
}

.title p {
    font-size: 32px;
    line-height: 130%;
    opacity: .5;
}

.item {
    margin-bottom: 72px;
}

.item h3 {
    font-size: 32px;
    font-weight: 500;
    margin-bottom: 16px;
}

.item p {
    font-size: 20px;
    line-height: 150%;
    opacity: .7;
}

.item img {
    margin-bottom: 16px;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,.1);
}

.back {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 16px;
    background: rgba(255, 255, 255, .05);
    padding: 16px 24px;
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 100px;
    transition: background .2s, border .2s;
}

.back:hover {
    background: rgba(255,255,255,.07);
    border: 1px solid rgba(255,255,255,.15);
}

@media screen and (max-width: 1200px) {
    .head {
        font-size: 18px;
        gap: 20px;
    }
    .head img {
        width: 48px;
    }
    .left,
    .right {
        padding: 48px;
    }
    .title {
        margin-left: calc(-100% - 96px);
    }
    .title h2 {
        font-size: 72px;
    }
    .title p {
        font-size: 24px;
    }
    .item h3 {
        font-size: 24px;
    }
    .item p {
        font-size: 16px;
    }
    .back {
        font-size: 14px;
        padding: 12px 18px;
        gap: 12px;
    }
    .back img {
        width: 14px;
    }
}

@media screen and (max-width: 720px) {
    .roadmap {
        flex-direction: column;
    }
    .left {
        width: 100%;
        align-items: center;
        padding: 32px;
        padding-bottom: 96px;
    }
    .right {
        padding: 24px;
    }
    .back {
        width: 180px;
        left: 0;
        right: 0;
        margin: 0 auto;
        top: -64px;
        justify-content: center;
    }
    .title {
        position: relative;
        top: 0;
        margin-left: 0;
        margin-top: 0;
        transform: none;
        height: auto;
        margin-bottom: 64px;
    }
    .title h2 {
        font-size: 48px;
    }
    .title p {
        font-size: 20px;
    }
    .item h3 {
        margin-bottom: 12px;
    }
    .item img {
        margin-bottom: 12px;
        border-radius: 8px;
    }
}