body {
    font-family: "KaiTi", 楷体, serif;
    width: 100%;
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.6;
    margin: 30px;
    padding: 0;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("../images/background_2025.jpg");
    background-size: cover;
    background-position: center center;
    background-attachment: fixed;
    opacity: 0.4; 
    z-index: -1; 
}

.container {
    width: 95%;
    max-width: 800px;
    background-color: rgba(247, 244, 244, 0.75);
    padding: 25px;
    box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.1);
    box-sizing: border-box;
    min-height: 90vh;
    border-radius: 10px;
    margin: 0 auto;
}

img {
    max-width: 85%;
    max-height: 500px;
    display: block;
    margin: 20px auto;
    box-shadow: 3px 3px 9px rgba(0, 0, 0, 0.8);
}

.image-container {
    margin: 20px 0;
    text-align: center;
    box-shadow: 3px 3px 9px rgba(0, 0, 0, 0.8);
}

.image-container.multi-image {
    display: flex;
    justify-content: center;
    gap: 8%;
    align-items: center;
}

.image-container.multi-image img {
    width: 100%;
    height: auto;
}

h1 {
    font-family: "Kaiti", 楷体, serif;
    display: block;
    color: #2c3e50;
    margin-left: 10px;
    font-size: 42px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
    border-bottom: 2px solid #3498db;
    position: relative;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

h1::before {
    content: "";
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 32px;
    opacity: 0.7;
}

h1::after {
    content: "";
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: #3498db;
    border-radius: 2px;
}


.date {
    margin: 10px;
    font-size: 16px;
    color: #7b7b7b;
    text-align: right;
}

h2 {
    text-align: center;
    color: #2c3e50;
    font-size: 28px;
    font-weight: bold;
    margin: 40px 20px 25px 20px;
    padding: 15px 0;
    position: relative;
    border-bottom: 1px solid #3498db;
}

h2::before {
    content: "";
    position: absolute;
    left: 50%;
    top: -10px;
    transform: translateX(-50%);
    width: 0px;
    height: 0px;
    background-color: #3498db;
    border-radius: 1px;
}


p {
    margin-left: 10px;
    font-size: 18px;
    color: #1e1d1d;
    text-indent: 2em;
}

/* 引用样式 - 统一风格 */
blockquote {
    margin: 20px 0;
    padding: 20px 25px;
    border-left: 5px solid #87CEEB;
    background-color: rgba(245, 245, 245, 0.8);
    font-family: "KaiTi", 楷体, serif;
    color: #4a4a4a;
    font-size: 20px;
    line-height: 1.8;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
}

blockquote::before {
    content: "";
    position: absolute;
    left: 15px;
    top: 10px;
    font-size: 32px;
    color: #87CEEB;
    opacity: 0.7;
    font-family: serif;
}

blockquote::after {
    content: "";
    position: absolute;
    right: 15px;
    bottom: 10px;
    font-size: 32px;
    color: #87CEEB;
    opacity: 0.7;
    font-family: serif;
}

/* 视频样式 */
.video-container {
    margin: 30px 0;
    text-align: center;
}

video {
    max-width: 90%;
    width: 90%;
    height: auto;
    min-height: 300px;
    display: block;
    margin: 20px auto;
    box-shadow: 3px 3px 9px rgba(0, 0, 0, 0.8);
    border-radius: 8px;
    object-fit: contain;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 宽高比 */
    height: 0;
    overflow: hidden;
    max-width: 85%;
    margin: 20px auto;
    box-shadow: 3px 3px 9px rgba(0, 0, 0, 0.8);
    border-radius: 8px;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 8px;
}

/* 视频标题和描述 */
.video-title {
    font-size: 18px;
    color: #333;
    margin: 10px 0 5px 0;
    text-align: center;
}

.video-description {
    font-size: 14px;
    color: #666;
    margin: 5px 0 20px 0;
    text-align: center;
    font-style: italic;
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
    body {
        margin: 10px;
        padding: 5px;
    }

    .container {
        width: 95%;
        padding: 15px;
        margin: 0 auto;
    }

    h1 {
        font-size: 32px;
        margin-left: 0;
        padding: 15px 0;
    }

    h1::before {
        display: none;
    }

    h1::after {
        width: 80px;
    }

    h2 {
        font-size: 24px;
        margin: 30px 15px 20px 15px;
        padding: 12px 0;
    }

    h2::before {
        width: 50px;
    }

    p {
        font-size: 16px;
        margin-left: 5px;
        text-indent: 1.5em;
    }

    img {
        max-width: 95%;
        margin: 15px auto;
    }

    .image-container.multi-image {
        flex-direction: column;
        gap: 15px;
    }

    blockquote {
        padding: 15px 20px;
        font-size: 18px;
    }

    video {
        max-width: 95%;
        min-height: 200px;
    }

    .video-wrapper {
        max-width: 95%;
        margin: 15px auto;
    }
}

@media screen and (max-width: 480px) {
    body {
        margin: 5px;
        padding: 2px;
    }

    .container {
        width: 98%;
        padding: 10px;
        min-height: 95vh;
    }

    h1 {
        font-size: 28px;
        margin-left: 0;
        padding: 10px 0;
    }

    h2 {
        font-size: 22px;
        margin: 25px 10px 15px 10px;
        padding: 10px 0;
    }

    p {
        font-size: 15px;
        margin-left: 0;
        text-indent: 1.2em;
    }

    .date {
        font-size: 14px;
    }

    img {
        max-width: 100%;
        margin: 10px auto;
    }

    blockquote {
        padding: 12px 15px;
        font-size: 16px;
        margin: 15px 0;
    }
}