* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    overflow-x: hidden;
}

.banner-container {
    position: relative;
    width: 100vw;
    overflow: hidden;
}

.banner-wrapper {
    display: block;
    width: 100%;
    position: relative;
}

.banner-slide {
    width: 100vw;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    pointer-events: none;
}

.banner-slide.active {
    opacity: 1;
    position: relative;
    pointer-events: auto;
}

.banner-slide img {
    width: 100vw;
    height: auto;
    display: block;
}

.banner-slide {
    cursor: pointer;
}

.banner-slide.active:hover {
    opacity: 0.85;
}

.banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    z-index: 10;
}

.banner-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    letter-spacing: 3px;
}

.banner-content p {
    font-size: 1.5rem;
    opacity: 0.9;
}

.banner-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    z-index: 20;
}

.banner-btn:hover {
    background: rgba(255, 255, 255, 0.4);
    transform: translateY(-50%) scale(1.1);
}

.prev {
    left: 30px;
}

.next {
    right: 30px;
}

.banner-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    z-index: 20;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot:hover {
    background: rgba(255, 255, 255, 0.8);
}

.dot.active {
    background: #fff;
    transform: scale(1.3);
}