.container{ max-width: 1000px; margin: 0 auto; padding: 40px 20px; background-color: #fff; border-radius: 12px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
.title{ font-size: 36px; font-weight: bold; margin-bottom: 25px; line-height: 1.3; color: #333; text-align: center; }
.info{ color:#666; margin-bottom: 30px; font-size: 20px; text-align: center; }
.content{ font-size: 22px; line-height: 2.2; color: #333; background-color: #fff; padding: 30px; border-radius: 8px; }
.content p{ margin-bottom: 25px; }
.content h1, .content h2, .content h3, .content h4, .content h5, .content h6{ margin: 40px 0 20px 0; font-weight: bold; color: #222; }
.content h1{ font-size: 32px; }
.content h2{ font-size: 28px; }
.content h3{ font-size: 26px; }
.content h4{ font-size: 24px; }
.content h5{ font-size: 22px; }
.content h6{ font-size: 20px; }
.content ul, .content ol{ margin: 20px 0; padding-left: 40px; }
.content li{ margin-bottom: 15px; }
.content img{ max-width:100%; height:auto; margin: 25px 0; border-radius: 8px; }
.content a{ color: #FF6C00; text-decoration: underline; font-weight: bold; }
.content a:hover{ color: #e56000; }
.ad-slot{ margin: 40px 0; padding: 20px; background-color: #f8f8f8; border-radius: 8px; border: 1px solid #e0e0e0; }
.font-control{ margin-bottom: 30px; text-align: center; }
.font-control button{ width: 60px; height: 60px; font-size: 20px; margin: 0 10px; border-radius: 8px; border: 2px solid #ddd; background-color: #fff; cursor: pointer; color: #333; display: inline-flex; align-items: center; justify-content: center; }
.font-control button:hover{ background-color: #f5f5f5; border-color: #FF6C00; color: #FF6C00; }
.back-to-top{ position: fixed; bottom: 30px; right: 30px; width: 60px; height: 60px; background-color: #FF6C00; color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 24px; cursor: pointer; box-shadow: 0 2px 10px rgba(0,0,0,0.2); z-index: 1000; }
.back-to-top:hover{ background-color: #e56000; }
@media (max-width: 768px) {
    .container{ 
        padding: 20px 15px; 
        max-width: 100%;
        border-radius: 0;
        box-shadow: none;
    }
    .title{ 
        font-size: 28px; 
        margin-bottom: 20px;
    }
    .info{ 
        font-size: 18px; 
        margin-bottom: 25px;
    }
    .content{ 
        font-size: 18px; 
        padding: 15px;
        line-height: 2.0;
    }
    .content p{ 
        margin-bottom: 20px;
    }
    .content h1{ font-size: 26px; }
    .content h2{ font-size: 24px; }
    .content h3{ font-size: 22px; }
    .content h4{ font-size: 20px; }
    .content ul, .content ol{ 
        padding-left: 25px;
        margin: 15px 0;
    }
    .content li{ 
        margin-bottom: 10px;
    }
    .font-control{ 
        margin-bottom: 25px;
    }
    .font-control button{ 
        width: 45px; 
        height: 45px; 
        font-size: 16px;
        margin: 0 8px;
        display: inline-flex; 
        align-items: center; 
        justify-content: center;
        color: #333;
    }
    .back-to-top{ 
        width: 45px; 
        height: 45px; 
        font-size: 18px; 
        bottom: 15px; 
        right: 15px;
    }
    .ad-slot{ 
        margin: 30px 0;
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .container{ 
        padding: 15px 10px;
    }
    .title{ 
        font-size: 24px;
    }
    .content{ 
        font-size: 17px;
        padding: 12px;
    }
    .content h1{ font-size: 24px; }
    .content h2{ font-size: 22px; }
    .content h3{ font-size: 20px; }
    .font-control button{ 
        width: 40px; 
        height: 40px; 
        font-size: 14px;
        margin: 0 6px;
        display: inline-flex; 
        align-items: center; 
        justify-content: center;
        color: #333;
    }
    .back-to-top{ 
        width: 40px; 
        height: 40px; 
        font-size: 16px;
    }
}