.k8-banner {
    position: relative;
    width: 100%;
    height: 500px;
    overflow: hidden;
    box-sizing: border-box;
    border: none !important;
    outline: none !important;
}

.k8-banner-container {
    position: relative;
    width: 100%;
    max-width: 100%;
    height: 100%;
    overflow: hidden;
}

.k8-banner-slides {
    position: relative;
    width: 100%;
    max-width: 100%;
    height: 100%;
    overflow: hidden;
}

.k8-banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    max-width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s ease-in-out, visibility 0.6s ease-in-out;
    z-index: 1;
    overflow: hidden;
}

.k8-banner-slide.k8-banner-active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
}

.k8-banner-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.k8-image-bg {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    max-width: none;
    min-height: 100%;
    /* 确保图片始终填满容器 */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.k8-banner-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    max-width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.k8-video-bg {
    width: 100%;
    height: 100% !important;
    object-fit: cover;
    object-position: center;
    display: block;
    max-width: none;
}

.k8-banner-content {
    position: absolute;
    top: 120px;
    left: 150px;
    text-align: left;
    color: white;
    z-index: 3;
    max-width: 800px;
    width: auto;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 50px;
    min-height: 280px;
}

.k8-banner-title {
    font-size: 40px;
    font-weight: 700;
    line-height: 1.2;
    margin: 0;
    letter-spacing: -0.02em;
    opacity: 0;
    animation: k8-fade-in 1s ease-out forwards;
    word-wrap: break-word;
    overflow-wrap: break-word;
    white-space: normal;
    hyphens: auto;
}

.k8-banner-description {
    font-size: 16px;
    font-weight: 400;
    line-height: 1.6;
    margin: 0;
    color: var(--k8-dark);
    opacity: 0;
    animation: k8-fade-in 1s ease-out forwards;
    /* 多行文字截断 */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    max-height: calc(1.6em * 2);
    height: calc(1.6em * 2);
    /* 文字换行 */
    word-wrap: break-word;
    overflow-wrap: break-word;
    white-space: normal;
    /* 确保box模型正确 */
    box-sizing: border-box;
}

.k8-banner-btn {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    padding: 8px 24px;
    background: linear-gradient(135deg, var(--k8-primary) 0%, var(--k8-primary-gradient) 100%);
    color: white;
    border: none;
    border-radius: 0;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0;
    animation: k8-fade-in 1s ease-out forwards;
    width: 240px;
    min-width: 240px;
    align-self: flex-start;
    text-align: left;
    flex-shrink: 0;
    white-space: nowrap;
    overflow: hidden;
}

.k8-banner-btn:hover {
    background: var(--k8-gradient-primary);
}

.k8-banner-btn:focus {
    outline: none;
}

.k8-banner-btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(27, 92, 230, 0.5);
}

.k8-banner-btn span {
    text-align: left;
    justify-self: start;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
}

.k8-banner-btn i {
    font-size: 18px;
    transition: transform 0.3s ease;
    justify-self: end;
}

.k8-banner-btn:hover i {
    transform: translateX(4px);
}

.k8-banner-pagination {
    position: absolute;
    bottom: 30px;
    left: 150px;
    right: 150px;
    display: flex;
    gap: 12px;
    z-index: 4;
}

.k8-pagination-item {
    position: relative;
    width: 100%;
    height: 1px;
    background: rgba(171, 171, 171, 0.3);
    border-radius: 0;
    cursor: pointer;
    overflow: visible;
}

.k8-pagination-text {
    position: absolute;
    bottom: 12px;
    left: 0;
    color: var(--k8-dark);
    font-size: 14px;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: all 0.3s ease;
    line-height: 1.2;
    padding: 4px 12px;
    border-radius: 12px;
    display: inline-block;
    max-width: 100%;
}

.k8-pagination-item.k8-pagination-active .k8-pagination-text {
    color: var(--k8-darker);
    font-weight: 500;
}

.k8-pagination-item:hover .k8-pagination-text {
    color: var(--k8-darker);
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.k8-pagination-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: var(--k8-dark);
    border-radius: 0;
    width: 0%;
    transition: width 0.1s ease;
}

.k8-pagination-item.k8-pagination-active .k8-pagination-progress {
    animation: k8-progress-fill 4s linear forwards;
}

@keyframes k8-fade-in {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes k8-fade-out {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
    }
}

@keyframes k8-progress-fill {
    from {
        width: 0%;
    }

    to {
        width: 100%;
    }
}

.k8-banner-slide:not(.k8-banner-active) .k8-banner-title,
.k8-banner-slide:not(.k8-banner-active) .k8-banner-description,
.k8-banner-slide:not(.k8-banner-active) .k8-banner-btn {
    opacity: 0;
    animation: k8-fade-out 0.5s ease-out forwards;
}

.k8-banner-slide.k8-banner-active .k8-banner-title {
    animation: k8-fade-in 1s ease-out forwards;
}

.k8-banner-slide.k8-banner-active .k8-banner-description {
    animation: k8-fade-in 1s ease-out forwards;
}

.k8-banner-slide.k8-banner-active .k8-banner-btn {
    animation: k8-fade-in 1s ease-out forwards;
}

.k8-banner:hover .k8-pagination-item.k8-pagination-active .k8-pagination-progress,
.k8-banner.k8-banner-paused .k8-pagination-item.k8-pagination-active .k8-pagination-progress {
    animation-play-state: paused !important;
}

/* PC端专用元素 - 移动端完全隐藏 */
.k8-pc-only {
    display: block;
}

/* 📱 移动端适配 (320px - 767px) */
@media (max-width: 767px) {
    .k8-banner {
        height: 300px;
    }

    /* 移动端完全隐藏PC专用元素 */
    .k8-pc-only {
        display: none !important;
    }

    .k8-image-bg {
        /* 移动端优化 - 确保图片完全覆盖容器 */
        min-width: 100%;
        min-height: 100%;
        object-fit: cover;
    }

    .k8-banner-content {
        top: 60px;
        left: 16px;
        right: 16px;
        gap: 12px;
        min-height: 170px;
    }

    .k8-banner-title {
        font-size: 24px;
        line-height: 1.3;
        letter-spacing: -0.01em;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        text-overflow: ellipsis;
        max-height: calc(1.3em * 2);
    }

    .k8-banner-description {
        font-size: 14px;
        line-height: 1.5;
        /* 多行文字截断 */
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        text-overflow: ellipsis;
        max-height: calc(1.5em * 2);
        height: calc(1.5em * 2);
        /* 文字换行 */
        word-wrap: break-word;
        overflow-wrap: break-word;
        white-space: normal;
        box-sizing: border-box;
    }

    .k8-banner-btn {
        width: 200px;
        min-width: 150px;
        max-width: calc(100% - 100px);
        padding: 4px 20px;
        font-size: 14px;
        grid-template-columns: 1fr auto;
        text-align: left;
        align-self: flex-start;
        flex-shrink: 0;
        white-space: nowrap;
        overflow: hidden;
    }

    .k8-banner-btn span {
        justify-self: start;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        min-width: 0;
    }

    .k8-banner-btn i {
        font-size: 18px;
        justify-self: end;
    }

    .k8-banner-pagination {
        bottom: 20px;
        left: 16px;
        width: auto;
        max-width: 200px;
        gap: 8px;
    }
    
    .k8-pagination-item {
        height: 1.5px;
    }
    
    .k8-pagination-text {
        display: none !important;
    }
}

/* 📱 平板端适配 (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    .k8-banner {
        height: 400px;
    }

    .k8-image-bg {
        /* 平板端优化 */
        min-width: 100%;
        min-height: 100%;
        object-fit: cover;
    }

    .k8-banner-content {
        top: 115px;
        left: 80px;
        right: 80px;
        max-width: calc(75% - 160px);
        gap: 16px;
        min-height: 190px;
    }

    .k8-banner-title {
        font-size: 32px;
        line-height: 1.25;
    }

    .k8-banner-description {
        font-size: 15px;
        line-height: 1.55;
        /* 多行文字截断 */
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        text-overflow: ellipsis;
        max-height: calc(1.55em * 2);
        height: calc(1.55em * 2);
        /* 文字换行 */
        word-wrap: break-word;
        overflow-wrap: break-word;
        white-space: normal;
        box-sizing: border-box;
    }

    .k8-banner-btn {
        width: 280px;
        min-width: 280px;
        padding: 10px 22px;
        font-size: 15px;
        flex-shrink: 0;
        white-space: nowrap;
        overflow: hidden;
    }

    .k8-banner-btn i {
        font-size: 16px;
    }

    .k8-banner-pagination {
        bottom: 24px;
        left: 80px;
        right: 80px;
        gap: 10px;
    }

    .k8-pagination-text {
        font-size: 13px;
        padding: 3px 10px;
        bottom: 10px;
    }
}

/* 🖥️ 桌面端适配 (1024px+) */
@media (min-width: 1024px) {
    .k8-banner {
        height: 500px;
    }

    .k8-banner-content {
        top: 120px;
        left: 90px;
        max-width: calc(70% - 200px);
        gap: 50px;
        min-height: 280px;
    }

    .k8-banner-title {
        font-size: 40px;
        line-height: 1.2;
    }

    .k8-banner-description {
        font-size: 15px;
        line-height: 1.6;
        /* 多行文字截断 */
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        text-overflow: ellipsis;
        max-height: calc(1.6em * 2);
        height: calc(1.6em * 2);
        /* 文字换行 */
        word-wrap: break-word;
        overflow-wrap: break-word;
        white-space: normal;
        box-sizing: border-box;
    }

    .k8-banner-btn {
        width: 320px;
        min-width: 320px;
        padding: 8px 24px;
        font-size: 18px;
        flex-shrink: 0;
        white-space: nowrap;
        overflow: hidden;
    }

    .k8-banner-btn i {
        font-size: 18px;
    }

    .k8-banner-pagination {
        bottom: 30px;
        left: 90px;
        right: 90px;
        gap: 12px;
    }

    .k8-pagination-text {
        font-size: 14px;
        padding: 4px 12px;
        bottom: 12px;
    }
}

/* 🖥️ 宽屏桌面适配 (1200px+) */
@media (min-width: 1200px) {
    .k8-banner {
        height: 500px;
    }

    .k8-banner-content {
        top: 120px;
        left: 100px;
        max-width: calc(65% - 200px);
        gap: 50px;
        min-height: 240px;
    }

    .k8-banner-title {
        font-size: 40px;
        line-height: 1.2;
    }

    .k8-banner-description {
        font-size: 15px;
        line-height: 1.6;
        /* 多行文字截断 */
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        text-overflow: ellipsis;
        max-height: calc(1.6em * 2);
        height: calc(1.6em * 2);
        /* 文字换行 */
        word-wrap: break-word;
        overflow-wrap: break-word;
        white-space: normal;
        box-sizing: border-box;
    }

    .k8-banner-btn {
        width: 350px;
        min-width: 350px;
        padding: 8px 24px;
        font-size: 18px;
        flex-shrink: 0;
        white-space: nowrap;
        overflow: hidden;
    }

    .k8-banner-btn i {
        font-size: 20px;
    }

    .k8-banner-pagination {
        bottom: 30px;
        left: 100px;
        right: 100px;
        gap: 12px;
    }

    .k8-pagination-text {
        font-size: 14px;
        padding: 4px 12px;
        bottom: 12px;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .k8-banner-btn {
        min-height: 38px;
        /* 触摸友好的最小高度 */
    }

    /* 触摸设备隐藏PC专用元素 */
    .k8-pc-only {
        display: none !important;
    }
}

/* 横屏移动端适配 */
@media (max-width: 767px) and (orientation: landscape) {
    .k8-banner {
        height: 250px;
    }

    /* 横屏移动端也隐藏PC专用元素 */
    .k8-pc-only {
        display: none !important;
    }

    .k8-image-bg {
        /* 横屏移动端优化 */
        min-width: 100%;
        min-height: 100%;
        object-fit: cover;
    }

    .k8-banner-content {
        top: 20px;
        left: 50px;
        right: 50px;
        max-width: calc(100% - 100px);
        width: calc(100% - 100px);
        gap: 8px;
        min-height: 140px;
    }

    .k8-banner-title {
        font-size: 20px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        text-overflow: ellipsis;
        max-height: calc(1.2em * 2);
        line-height: 1.2;
    }

    .k8-banner-description {
        font-size: 13px;
        /* 多行文字截断 */
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        text-overflow: ellipsis;
        max-height: calc(1.4em * 2);
        height: calc(1.4em * 2);
        line-height: 1.4;
        /* 文字换行 */
        word-wrap: break-word;
        overflow-wrap: break-word;
        white-space: normal;
        box-sizing: border-box;
    }

    .k8-banner-btn {
        width: 240px;
        min-width: 150px;
        max-width: calc(100% - 100px);
        padding: 8px 20px;
        font-size: 16px;
        flex-shrink: 0;
        white-space: nowrap;
        overflow: hidden;
    }

    .k8-banner-pagination {
        bottom: 12px;
        left: 50px;
    }
}

@media (prefers-reduced-motion: reduce) {

    .k8-banner-slide,
    .k8-banner-title,
    .k8-banner-description,
    .k8-banner-btn {
        transition: none;
        animation: none;
    }

    .k8-banner-title,
    .k8-banner-description,
    .k8-banner-btn {
        opacity: 1;
    }
}

@media (prefers-contrast: high) {
    .k8-pagination-item {
        background: rgba(171, 171, 171, 0.8);
    }

    .k8-pagination-progress {
        background: var(--k8-darker);
    }

    .k8-pagination-text {
        color: var(--k8-darker);
        background: rgba(255, 255, 255, 0.9);
        text-shadow: none;
    }

    .k8-pagination-item.k8-pagination-active .k8-pagination-text {
        color: var(--k8-darker);
        background: var(--k8-white);
        text-shadow: none;
    }

    .k8-pagination-item:hover .k8-pagination-text {
        color: var(--k8-darker);
        background: rgba(255, 255, 255, 0.8);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
        box-shadow: var(--k8-shadow-lg);
    }
}

/* 高DPI显示器优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .k8-image-bg {
        /* 高DPI设备上的图片优化 */
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* 图片加载失败时的备用样式 */
.k8-banner-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--k8-primary) 0%, var(--k8-primary-gradient) 100%);
    opacity: 0.1;
    z-index: -1;
}