#main-text {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 15px;
    color: #1a1a1a;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.65;
    letter-spacing: -0.01em;
}

#main-text h1 {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: #000000;
    margin: 0 0 24px 0;
    position: relative;
    padding-bottom: 20px;
    border-bottom: 4px solid #000000;
}

#main-text h1::after {
    content: "378";
    position: absolute;
    right: 0;
    bottom: -4px;
    font-size: 90px;
    font-weight: 900;
    color: rgba(0, 0, 0, 0.03);
    line-height: 1;
    z-index: -1;
    letter-spacing: 0;
}

#main-text h2 {
    font-size: 26px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: #000000;
    margin: 40px 0 16px 0;
    padding-top: 20px;
    border-top: 1px dashed #cccccc;
}

#main-text h3 {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.01em;
    color: #333333;
    margin: 30px 0 12px 0;
}

#main-text p {
    margin: 0 0 14px 0;
    text-align: left;
}

#main-text p:last-of-type {
    margin-bottom: 0;
}

#main-text p::first-letter {
    font-weight: inherit;
}

#main-text h1 + p {
    font-size: 18px;
    line-height: 1.6;
    color: #333333;
    font-weight: 500;
    border-left: 3px solid #000000;
    padding-left: 15px;
    margin-bottom: 24px;
}

#main-text ol {
    list-style: none;
    padding: 0;
    margin: 25px 0;
    border-top: 1px solid #000000;
    border-bottom: 1px solid #000000;
}

#main-text ol li {
    position: relative;
    padding: 12px 0 12px 40px;
    border-bottom: 1px solid #eeeeee;
    font-size: 15px;
    font-weight: 500;
    color: #222222;
}

#main-text ol li:last-child {
    border-bottom: none;
}

#main-text ol li::before {
    content: "— " counter(item, decimal-leading-zero);
    counter-increment: item;
    position: absolute;
    left: 0;
    top: 12px;
    font-weight: 700;
    font-family: monospace;
    color: #666666;
    font-size: 13px;
}

#main-text ol {
    counter-reset: item;
}

@media (max-width: 768px) {
    #main-text {
        padding: 20px 15px;
        font-size: 15px;
        line-height: 1.6;
    }

    #main-text h1 {
        font-size: 30px;
        margin-bottom: 18px;
    }

    #main-text h1::after {
        font-size: 60px;
    }

    #main-text h2 {
        font-size: 21px;
        margin-top: 30px;
        margin-bottom: 12px;
    }

    #main-text h3 {
        font-size: 18px;
        margin-top: 25px;
    }

    #main-text h1 + p {
        font-size: 16px;
        padding-left: 12px;
    }
}