/* ════════════════════════════════════════════════════════════
   通用图片轮播模态（embla 触控翻页）
   被 campus.php / team.php / achievement.php / course.php 复用
   触发：window.openPhotoCarousel(images, startIndex, label)
   ════════════════════════════════════════════════════════════ */

#modal-photo .modal-inner {
    background: rgba(18, 17, 15, 0.96);
    border-color: rgba(255, 255, 255, .25);
    box-shadow: 0 40px 100px rgba(0, 0, 0, .5);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Embla 视口 */
.pm-slider {
    position: relative;
    background: #000;
    overflow: hidden;
    cursor: grab;
    user-select: none;
    touch-action: pan-y pinch-zoom;
    min-height: 200px;
    max-height: 75vh;
}

.pm-slider:active { cursor: grabbing; }

.pm-slides {
    display: flex;
    align-items: stretch;
    will-change: transform;
}

.pm-slide {
    flex: 0 0 100%;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.pm-slide img {
    display: block;
    max-width: 100%;
    max-height: 75vh;
    width: auto;
    height: auto;
    object-fit: contain;
    user-select: none;
    -webkit-user-drag: none;
}

/* 信息栏 */
.pm-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    border-top: 1px solid rgba(255, 255, 255, .1);
}

.pm-label {
    font-size: var(--font-size-14);
    color: rgba(255, 255, 255, .75);
    font-weight: 500;
}

.pm-counter {
    font-size: var(--font-size-14);
    color: rgba(255, 255, 255, .45);
    font-variant-numeric: tabular-nums;
}

/* 左右导航 */
.pm-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(0, 0, 0, .45);
    border: 1px solid rgba(255, 255, 255, .2);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s, transform .2s;
    padding: 0;
}

.pm-prev { left: 14px; }
.pm-next { right: 14px; }

.pm-nav:hover { background: rgba(255, 255, 255, .18); }
.pm-prev:hover { transform: translateY(-50%) translateX(-2px); }
.pm-next:hover { transform: translateY(-50%) translateX(2px); }

.pm-nav:disabled {
    opacity: .22;
    cursor: default;
    pointer-events: none;
}

/* 移动端：放开高度限制让模态接管全屏，按钮缩小靠边 */
@media (max-width: 768px) {
    .pm-slider {
        flex: 1;
        max-height: none;
    }
    .pm-slide {
        max-height: none;
    }
    .pm-slide img {
        max-height: 100%;
    }
    .pm-info {
        padding: 10px 16px;
        border-top-color: rgba(255, 255, 255, .08);
    }
    .pm-nav {
        width: 40px;
        height: 40px;
        background: rgba(0, 0, 0, .35);
    }
    .pm-prev { left: 8px; }
    .pm-next { right: 8px; }
}