/* ============================================================================
 * 桫椤珍稀物种 —— 大图轮播 + 底部 tab 列表
 * 作用于 #species-slider，独立作用域
 * ========================================================================== */

#species-slider {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 6;
    background: #0a0a0a;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.10);
    isolation: isolate;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

/* ===== 滑片 ===== */
#species-slider .species-slides {
    position: relative;
    height: 100%;
    list-style: none;
    margin: 0;
    padding: 0;
}
#species-slider .species-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.7s ease;
    pointer-events: none;
}
#species-slider .species-slide.active {
    opacity: 1;
    pointer-events: auto;
    z-index: 1;
}
#species-slider .species-slide > a {
    display: block;
    width: 100%;
    height: 100%;
    text-decoration: none;
    color: inherit;
    position: relative;
}
#species-slider .species-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transform: scale(1.04);
    transition: transform 8s ease;
}
#species-slider .species-slide.active img {
    transform: scale(1);
}
#species-slider .placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px;
    text-align: center;
    box-sizing: border-box;
    background:
        radial-gradient(ellipse at center, rgba(45, 110, 62, 0.32) 0%, transparent 70%),
        linear-gradient(135deg, #0a1f12 0%, #1a2e1f 60%, #0d2818 100%);
}
#species-slider .placeholder-icon {
    font-size: 56px;
    line-height: 1;
    margin-bottom: 18px;
    opacity: 0.65;
    filter: drop-shadow(0 2px 8px rgba(45, 110, 62, 0.4));
}
#species-slider .placeholder-title {
    font-size: 24px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.88);
    margin-bottom: 10px;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
    max-width: 88%;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-height: 1.4;
}
#species-slider .placeholder-tip {
    font-size: 12px;
    opacity: 0.5;
    letter-spacing: 3px;
    color: #9ddcaf;
}

/* ===== 左右翻页 ===== */
#species-slider .species-arrow {
    position: absolute;
    top: 50%;
    width: 56px;
    height: 56px;
    margin-top: -28px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.36);
    border: 1.5px solid rgba(255, 255, 255, 0.55);
    color: #fff;
    font-size: 30px;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.25s ease, background 0.25s ease, transform 0.15s ease, border-color 0.25s ease;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
}
#species-slider .species-arrow.prev { left: 24px; }
#species-slider .species-arrow.next { right: 24px; }
#species-slider:hover .species-arrow { opacity: 1; }
#species-slider .species-arrow:hover {
    background: #2d6e3e;
    border-color: #2d6e3e;
    transform: scale(1.06);
}
#species-slider .species-arrow:focus-visible {
    outline: 3px solid #9ddcaf;
    outline-offset: 2px;
}
#species-slider .species-arrow span {
    line-height: 1;
    transform: translateY(-2px);
}

/* ===== 底部 tab 列表 ===== */
#species-slider .species-tabs {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 28px;
    z-index: 4;
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    padding: 0 24px;
}
#species-slider .species-tab {
    display: inline-block;
    min-width: 150px;
    text-align: center;
    padding: 12px 22px;
    background: rgba(0, 0, 0, 0.62);
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.5px;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    transition: background 0.25s ease, transform 0.2s ease, border-color 0.25s ease;
}
#species-slider .species-tab:hover {
    background: rgba(45, 110, 62, 0.85);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}
#species-slider .species-tab.active {
    background: rgba(45, 110, 62, 0.95);
    border-color: rgba(255, 255, 255, 0.55);
}
#species-slider .species-tab:focus-visible {
    outline: 3px solid #9ddcaf;
    outline-offset: 2px;
}
#species-slider .species-tab .tab-label {
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 220px;
}

/* ===== 移动端 ===== */
@media (max-width: 768px) {
    #species-slider {
        aspect-ratio: 4 / 3;
        border-radius: 8px;
    }
    #species-slider .species-arrow {
        width: 40px;
        height: 40px;
        font-size: 22px;
    }
    #species-slider .species-arrow.prev { left: 8px; }
    #species-slider .species-arrow.next { right: 8px; }
    #species-slider .species-tabs {
        bottom: 12px;
        gap: 8px;
        padding: 0 12px;
    }
    #species-slider .species-tab {
        min-width: 100px;
        padding: 8px 14px;
        font-size: 13px;
    }
}

/* ===== 减少动画偏好 ===== */
@media (prefers-reduced-motion: reduce) {
    #species-slider .species-slide { transition: opacity 0.2s ease; }
    #species-slider .species-slide img { transition: none; }
    #species-slider .species-arrow,
    #species-slider .species-tab { transition: none; }
}