/* === Media Carousel === */
.media-carousel {
    position: relative;
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    background: #0d0d1a;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.media-carousel-viewport {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 */
    overflow: hidden;
}

.media-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.media-slide.active {
    opacity: 1;
    pointer-events: auto;
}

/* Video slide */
.media-video-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    background: #000;
}

.media-video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* Image slide */
.media-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    cursor: zoom-in;
}

.media-slide-name {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px 16px 12px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.6));
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    opacity: 0;
    transition: opacity 0.3s;
}

.media-slide:hover .media-slide-name {
    opacity: 1;
}

/* Navigation arrows */
.media-carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(10, 10, 10, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #e0e0e0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    z-index: 10;
    backdrop-filter: blur(8px);
    opacity: 0;
}

.media-carousel:hover .media-carousel-arrow {
    opacity: 1;
}

.media-carousel-arrow i {
    width: 18px;
    height: 18px;
}

.media-carousel-arrow:hover {
    background: rgba(86, 156, 214, 0.3);
    border-color: rgba(86, 156, 214, 0.5);
}

.media-carousel-prev {
    left: 12px;
}

.media-carousel-next {
    right: 12px;
}

/* Dots indicator */
.media-carousel-dots {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 6px;
    z-index: 10;
}

.media-carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    padding: 0;
}

.media-carousel-dot.active {
    background: #569cd6;
    width: 20px;
    border-radius: 4px;
}

.media-carousel-dot:hover {
    background: rgba(255, 255, 255, 0.6);
}

/* Type badge */
.media-slide-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    z-index: 5;
    backdrop-filter: blur(8px);
}

.media-slide-badge.video {
    background: rgba(86, 156, 214, 0.25);
    color: #569cd6;
    border: 1px solid rgba(86, 156, 214, 0.3);
}

.media-slide-badge.image {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Placeholder */
.media-placeholder {
    width: 100%;
    aspect-ratio: 16 / 9;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border: 1px dashed rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.media-placeholder:hover {
    border-color: rgba(86, 140, 214, 0.3);
    box-shadow: 0 8px 32px rgba(86, 140, 214, 0.15);
}

.media-placeholder span {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.3);
}

/* === Lightbox === */
.media-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.92);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.media-lightbox.active {
    display: flex;
}

.media-lightbox-close {
    position: absolute;
    top: 20px;
    right: 24px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #e0e0e0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.media-lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.media-lightbox-close i {
    width: 20px;
    height: 20px;
}

.media-lightbox-img {
    max-width: 90vw;
    max-height: 80vh;
    object-fit: contain;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
}

.media-lightbox-name {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 14px;
    color: #b0b0b0;
    background: rgba(10, 10, 10, 0.7);
    padding: 8px 20px;
    border-radius: 20px;
    white-space: nowrap;
}

.media-lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #e0e0e0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.media-lightbox-nav:hover {
    background: rgba(86, 156, 214, 0.3);
    border-color: rgba(86, 156, 214, 0.5);
}

.media-lightbox-nav i {
    width: 22px;
    height: 22px;
}

.media-lightbox-prev {
    left: 24px;
}

.media-lightbox-next {
    right: 24px;
}

/* Responsive */
@media (max-width: 768px) {
    .media-carousel-arrow {
        width: 32px;
        height: 32px;
        opacity: 1;
    }

    .media-carousel-prev {
        left: 8px;
    }

    .media-carousel-next {
        right: 8px;
    }

    .media-carousel-dot {
        width: 6px;
        height: 6px;
    }

    .media-carousel-dot.active {
        width: 16px;
    }

    .media-lightbox-nav {
        width: 40px;
        height: 40px;
    }

    .media-lightbox-prev {
        left: 12px;
    }

    .media-lightbox-next {
        right: 12px;
    }
}

/* Light mode */
body.light-mode .media-carousel {
    background: #f1f5f9;
    border-color: rgba(102, 126, 234, 0.1);
}

body.light-mode .media-slide img {
    background: #f1f5f9;
}

body.light-mode .media-carousel-arrow {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(102, 126, 234, 0.15);
    color: #475569;
}

body.light-mode .media-carousel-arrow:hover {
    background: rgba(102, 126, 234, 0.15);
    border-color: rgba(102, 126, 234, 0.3);
}

body.light-mode .media-carousel-dot {
    background: rgba(102, 126, 234, 0.25);
}

body.light-mode .media-carousel-dot.active {
    background: #667eea;
}

body.light-mode .media-placeholder {
    background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
    border-color: rgba(102, 126, 234, 0.15);
}

body.light-mode .media-placeholder:hover {
    border-color: rgba(102, 126, 234, 0.3);
}

body.light-mode .media-placeholder span {
    color: rgba(30, 41, 59, 0.4);
}

/* 无视频无截图时：封面图回退显示 */
.media-cover-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.25);
    border-radius: 12px;
    overflow: hidden;
}

.media-cover-fallback img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}