body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial;
    background: #f5f7fb;
    margin: 0;
}

.container {
    max-width: 920px;
    margin: 40px auto;
    background: #fff;
    padding: 45px 55px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.06);
}

h1 {
    font-size: 30px;
    margin-bottom: 10px;
}

.meta {
    background: #f2f5f9;
    padding: 14px;
    border-radius: 6px;
    margin-bottom: 30px;
    font-size: 14px;
}

h2 {
    margin-top: 35px;
    font-size: 20px;
    border-left: 4px solid #3b82f6;
    padding-left: 10px;
}

.en { color:#111; }
.cn { color:#666; margin-top:6px; }

ul { padding-left:20px; }
li { margin-bottom:6px; }

.highlight {
    background: #f0f7ff;
    border-left: 4px solid #3b82f6;
    padding: 12px;
    margin: 15px 0;
    border-radius: 6px;
}