h1, h2, h3, h4, h5, h6 {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft YaHei", sans-serif;
    font-weight: 700;
    line-height: 1.4;
    margin-top: 45px;
    margin-bottom: 25px;
}

h1 { font-size: 28px; }
h2 { font-size: 24px; }
h3 { font-size: 20px; }
h4 { font-size: 18px; }
h5 { font-size: 16px; }
h6 { font-size: 15px; }

@media only screen and (max-width: 767px) {
    h1, h2, h3, h4, h5, h6 {
        margin-top: 35px;
        margin-bottom: 20px;
    }
    h1 { font-size: 24px; }
    h2 { font-size: 21px; }
    h3 { font-size: 18px; }
    h4 { font-size: 16px; }
}

p {
    margin: 30px 0;
}

blockquote {
    border-left: 4px solid #0085a1;
    background-color: rgba(0, 133, 161, 0.05);
    padding: 15px 20px;
    margin: 20px 0;
    border-radius: 3px;
    font-size: 16px;
    color: #555;
}

.post-container ul, 
.post-container ol {
    padding-left: 25px;
    margin-bottom: 25px;
}

.post-container li {
    margin-bottom: 8px;
}

.post-container a {
    color: #464646;
    text-decoration: none;
    border-bottom: 1px dotted #0085a1;
    transition: all 0.3s ease;
}

.post-container a:hover {
    color: #005f73;
    border-bottom: 1px solid #005f73;
}

.about-page h2 {
    font-size: 26px;
    color: #0085a1;
    margin-top: 40px;
}

.about-page p {
    font-size: 17px;
    line-height: 1.8;
}