/* 横幅轮播样式 */
.header-banner {
    position: relative;
    width: 100%;
    height: auto;
    overflow: hidden;
    border-radius: 0;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #1e3c72 100%);
    font-size: 0;
    line-height: 0;
    border-bottom: 1px solid #FFD700;
}

.header-banner a {
    display: none;
    width: 100%;
    height: auto;
}

.header-banner a:first-child {
    display: block;
}

.header-banner img {
    width: 100%;
    height: auto;
    display: block;
    margin: 0;
    padding: 0;
}

/* 轮播指示器 */
.banner-indicators {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
}

.banner-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background 0.3s;
}

.banner-dot.active {
    background: #fff;
}

/* 中部横幅样式 */
.middle-banner {
    position: relative;
    width: 100%;
    height: auto;
    overflow: hidden;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #1e3c72 100%);
    font-size: 0;
    line-height: 0;
    border-top: 1px solid #FFD700;
    border-bottom: 1px solid #FFD700;
}

.middle-banner a {
    display: block;
    width: 100%;
    height: auto;
}

.middle-banner img {
    width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

/* 响应式 */
@media (max-width: 768px) {
    .header-banner {
        height: 80px;
    }
    .middle-banner {
        min-height: 40px;
    }
}