/* 基础样式 */
 body {
    margin: 0;
    padding: 0;
    background-color: #f8f9fa;
    overflow-x: hidden;
    transition: background-color 1.5s ease;
}

/* 顶部装饰线条 - 添加动画 */
.top-line {
    height: 5px;
    background: linear-gradient(to right, #FFC300, #003366);
    width: 100%;
    margin-bottom: 20px;
    animation: pulse 2s infinite;
}

/* 底部装饰线条 - 添加动画 */
.bottom-line {
    height: 5px;
    background: linear-gradient(to right, #003366, #FFC300);
    width: 100%;
    margin-top: 20px;
    animation: pulse 2s infinite 0.5s;
}

/* 主内容区域 */
.main-content {
    padding: 40px 0;
    max-width: 1200px;
    margin: 0 auto;
    transition: transform 0.5s ease;
}

/* 内容容器 */
.content-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* 装饰线条 */
.decorative-lines {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    animation: slideIn 1s ease;
}

.yellow-line {
    height: 5px;
    width: 100px;
    background-color: #FFC300;
    border-radius: 2.5px;
}

.blue-line {
    height: 5px;
    width: 50px;
    background-color: #003366;
    border-radius: 2.5px;
}

/* 主标题 - 添加动画 */
.main-title {
    font-size: 28px;
    font-weight: 700;
    color: #003366;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s ease forwards;
}

/* 内容文本 */
.content-text {
    color: #333;
    line-height: 1.6;
}

.content-text p {
    margin-bottom: 15px;
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
}

.content-text p:nth-child(2) {
    animation-delay: 0.2s;
}

.content-text p:nth-child(3) {
    animation-delay: 0.4s;
}

.banner-content {
    background-color: rgba(255, 213, 0, 0.8);
    padding: 20px;
    text-align: center;
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transform: translateY(20px);
    opacity: 0;
    animation: fadeInUp 1s ease forwards 0.5s;
}

.banner-content p {
    margin: 0;
    font-size: 20px;
    color: #333;
}

.divider {
    border-top: 1px dashed #0047AB;
    margin: 30px 0;
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
}

/* 英雄横幅 - 添加动画 */
.hero-banner {
    position: relative;
    height: 300px;
    background-color: #0047AB;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 40px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    transform: scale(0.9);
    opacity: 0;
    animation: fadeInScale 1s ease forwards;
}

.banner-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
    opacity: 0.7; /* 图片透明度调整 */
}

.banner-image:hover {
    transform: scale(1.05);
}

/* 图片容器 - 添加动画 */
.image-container {
    position: relative;
    margin: 30px 0;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.image-container img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s ease forwards;
}

.image-container img:hover {
    transform: scale(1.03);
}

/* 按钮样式 */
.btn-custom {
    background-color: #003366;
    color: white;
    border: none;
    border-radius: 50px;
    padding: 12px 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.btn-custom:hover {
    background-color: #0047AB;
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

/* 动画定义 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInScale {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes pulse {
    0% { opacity: 0.7; }
    50% { opacity: 1; }
    100% { opacity: 0.7; }
}

@keyframes slideIn {
    from { transform: translateX(-20px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-banner {
        height: 250px;
    }
    
    .banner-content p {
        font-size: 18px;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 20px 0;
    }
    
    .main-title {
        font-size: 24px;
    }
    
    .banner-content p {
        font-size: 16px;
    }
    
    .hero-banner {
        height: 200px;
    }
    
    .banner-image {
        height: 100%;
    }
    
    /* 调整图片动画效果 */
    .image-container img {
        animation-duration: 0.8s;
    }
}

@media (max-width: 576px) {
    .hero-banner {
        height: 150px;
    }
    
    .banner-content p {
        font-size: 14px;
        padding: 10px 20px;
    }
    
    .image-container {
        margin: 20px 0;
    }
}