:root {
    --header-h: 56px;
    --footer-h: 40px;
}

body {
    background-color: #020617;
    background-image: radial-gradient(circle at 50% 0%, #1e293b 0%, #020617 70%);
}

/* 玻璃面板 */
.glass-panel {
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* 棋盘格 */
.bg-checkerboard {
    background-color: #1e293b;
    background-image:
        linear-gradient(45deg, #334155 25%, transparent 25%),
        linear-gradient(-45deg, #334155 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #334155 75%),
        linear-gradient(-45deg, transparent 75%, #334155 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
}

/* 滚动条 */
.custom-scrollbar::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.custom-scrollbar::-webkit-scrollbar-track {
    background: transparent;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
    background: #334155;
    border-radius: 3px;
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: #475569;
}

/* 瀑布流 */
.masonry-grid {
    column-count: 1;
    gap: 1rem;
}

@media (min-width: 640px) {
    .masonry-grid {
        column-count: 2;
    }
}

@media (min-width: 1024px) {
    .masonry-grid {
        column-count: 3;
    }
}

@media (min-width: 1280px) {
    .masonry-grid {
        column-count: 4;
    }
}

.break-inside-avoid {
    break-inside: avoid;
    page-break-inside: avoid;
}

/* 动画 */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-enter {
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* 输入框 */
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
}

.input-void {
    background: #0f172a;
    border: 1px solid #334155;
    color: white;
    transition: all 0.2s;
}

.input-void:focus {
    border-color: #6366f1;
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
    outline: none;
}