/* 全局重置与基础样式 - 严格匹配原图比例 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #000;
    color: #fff;
    overflow: hidden; /* 原图无滚动条 */
    height: 100vh;
}

/* 容器 - 严格匹配原图16:9比例 */
.main-container {
    position: relative;
    width: 100vw;
    height: 100vh;
    background: url('/static/home/images/index_slider_1.png') center/cover no-repeat;
}

/* 蒙版 - 原图深蓝色半透明层 */
.main-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 15, 40, 0.88);
    z-index: 1;
}

/* 主视觉文字区 - 原图居中位置/线条装饰 */
.hero-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    text-align: center;
    width: 100%;
    padding: 0 5vw;
}

.hero-title {
    font-size: 4.2vw; /* 原图标题字号比例 */
    letter-spacing: 1.2vw; /* 原图字间距 */
    margin-bottom: 2.5vh;
    font-weight: 300;
    position: relative;
    display: inline-block;
    padding: 0 3vw;
}

/* 标题两侧竖线 - 原图装饰细节 */
.hero-title::before, .hero-title::after {
    content: '';
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 0.12vw;
    height: 60%;
    background-color: #fff;
}

.hero-title::before {
    left: 0;
}

.hero-title::after {
    right: 0;
}

.hero-subtitle {
    font-size: 1.1vw;
    letter-spacing: 0.3vw;
    opacity: 0.85;
    font-weight: 300;
}

/* 右侧轮播指示器 - 原图竖排圆点 */
.carousel-dots {
    position: absolute;
    width: 100%;
    bottom: 15.5vh;
    left: 0;
    transform: translateY(-50%);
    z-index: 2;
    display: flex;
    justify-content:center;
    gap: 1.5vh; /* 原图圆点间距 */
}

.dot {
    width: 2vw;
    height: 0.15vw;
    background-color: #fff;
    opacity: 0.5;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.dot.active {
    opacity: 1;
}

/* 底部控制按钮 - 原图左下角箭头 */
.carousel-controls {
    position: absolute;
    bottom: 7vh;
    left: 2vw;
    z-index: 2;
    display: flex;
    gap: 1.5vw;
}

.control-btn {
    width: 2vw;
    height: 2vw;
    border: 1px solid rgba(255,255,255,0.8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.8vw;
    opacity: 0.8;
    transition: all 0.3s ease;
}

.control-btn:hover {
    background-color: #fff;
    color: #000;
    opacity: 1;
}


/* 底部右侧版权信息 - 原图右下角位置 */
.copyright {
    position: absolute;
    bottom: 4.5vh;
    right: 5vw;
    z-index: 2;
    font-size: 0.7vw;
    opacity: 0.7;
    letter-spacing: 0.1vw;
}

.copyright a{
    color: #fff;
    text-decoration: none;
}

/* 平板设备适配 (768px - 1024px) */
@media (max-width: 1024px) and (min-width: 769px) {

    .hero-title {
        font-size: 5vw;
        letter-spacing: 1.5vw;
    }

    .hero-subtitle {
        font-size: 1.5vw;
    }

    .dot {
        width: 1.2vw;
        height: 1.2vw;
    }

    .control-btn {
        width: 3vw;
        height: 3vw;
        font-size: 1.2vw;
    }

    .copyright {
        font-size: 1.2vw;
    }
}

/* 移动端适配 (小于768px) */
@media (max-width: 768px) {


    /* 主标题调整 */
    .hero-title {
        font-size: 7vw;
        letter-spacing: 1.8vw;
        padding: 0 5vw;
    }

    .hero-title::before, .hero-title::after {
        width: 0.2vw;
    }

    .hero-subtitle {
        font-size: 2.5vw;
        letter-spacing: 0.5vw;
        line-height: 1.5;
    }

    .carousel-dots {
        right: 3vw;
        gap: 1vh;
    }

    .dot {
        width: 2vw;
        height: 2vw;
    }

    .control-btn {
        width: 5vw;
        height: 5vw;
        font-size: 2vw;
    }


    .copyright {
        font-size: 2vw;
        right: 3vw;
        bottom: 3vh;
        text-align: right;
        line-height: 1.4;
    }
}

/* 小屏手机适配 (小于480px) */
@media (max-width: 480px) {
    .hero-title {
        font-size: 8vw;
        letter-spacing: 1.5vw;
        margin-bottom: 2vh;
    }

    .hero-subtitle {
        font-size: 3vw;
    }

    .copyright {
        font-size: 2.2vw;
    }
}