* {
    margin: 0px;
    padding: 0px;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

body {
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    /*居中 */
    padding: 20px;
}

/* 头部样式 */
.header {
    /* CSS的线性渐变背景属性background: linear-gradient(渐变方向, 颜色 位置, 颜色 位置); */
    background: linear-gradient(135deg, #1a5c36 0%, #2d8c5a 100%);
    /* 元素内边距，属于盒模型 */
    color: white;
    padding: 40px 0;
    /*上下40，左右0*/
    border-radius: 0 0 15px 15px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    /*加阴影*/
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
    /*防止内容溢出*/
}

.header::before {
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    position: absolute;
    content: " ";
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(255,255,255,0.05)"/></svg>');
    background-size: cover;
}

.header-content {
    position: relative;
    padding: 0 20px;
    text-align: center;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    /*元素距离外边的距离*/
}

.header h1 {
    font-size: 2.4rem;
    margin-bottom: 15px;
    line-height: 1.3;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.meta-info {
    align-items: center;
    margin-top: auto;
    display: flex;
    font-size: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    opacity: 0.9;
}

.meta-item {
    display: flex;
    gap: 8px;
    align-items: center;
}

/* 内容样式 */
.content {
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    padding: 40px;
    margin-bottom: 40px;
}

.content-p {
    margin-bottom: 15px;
    font-size: 1.1rem;
    text-align: justify;
}

/* 图片样式 */
.image-container {
    margin: 35px 0;
    text-align: center;
    position: relative;
}

.image-container img {
    max-width: 100%;
    height: auto;
    border-radius: 5%;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #2d8c5a;
}

.image-container img:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
}

.image-caption {
    margin-top: 20px;
    font-style: italic;
    font-size: 0.95rem;
    color: #666;
}

.highlight-quote {
    background-color: #f0f9f4;
    font-size: 1.15rem;
    margin: 35px 0;
    padding: 25px;
    border-left: 5px solid #2d8c5a;
    border-radius: 0 8xp 8xp 0;
    color: #1a5c36;
    box-shadow: 12px 12px 12px 12px rgba(0, 0, 0, 0.08);
}

.highlight-quote i {
    margin-right: 10px;
    color: #2d8c5a;
}

.participants {
    display: flex;
    flex-wrap: wrap;
    /*指定 flex 元素单行显示还是多行显示*/
    gap: 30px;
    margin: 40px 0;
    justify-content: center;
}

.participant-card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    border-top: 4px solid #2d8c5a;
    text-align: center;
    transition: tansform 0.3s ease;
}

.participant-card:hover {
    transform: translateY(-8px);
}

.participant-card h3 {
    color: #1a5c36;
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.participant-card .title {
    color: #2d8c5a;
    font-weight: 600;
    margin-bottom: 15px;
    font-size: 0.95rem;
}

/* 底部样式 */
.footer {
    text-align: center;
    padding: 30px;
    color: #666;
    border-top: 1px solid #eee;
    margin-top: 40px;
    font-size: 0.95rem;
}

.conclusion {
    background: linear-gradient(to right, #f8f9fa, #f0f9f4, #f8f9fa);
    padding: 30px;
    border-radius: 10px;
    margin-top: 40px;
    text-align: center;
    border: 1px dashed #2d8c5a;
}

.conclusion h3 {
    color: #1a5c36;
    margin-bottom: 15px;
    font-size: 1.4rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header h1 {
        font-size: 1.8rem;
    }

    .content {
        padding: 25px;
    }

    .content p {
        font-size: 1rem;
    }

    .meta-info {
        flex-direction: column;
        gap: 10px;
    }

    .participant-card {
        width: 100%;
        max-width: 350px;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 30px 0;
    }

    .header h1 {
        font-size: 1.5rem;
    }

    .content {
        padding: 20px;
    }

    .highlight-quote {
        padding: 20px;
        font-size: 1rem;
    }
}