@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;700&display=swap');

body {
    font-family: 'Noto Sans SC', sans-serif;
    background-color: #f3f4f6;
}

.progress-bg {
    background-image: radial-gradient(#cbd5e1 1px, transparent 0);
    background-size: 4px 4px;
}

/* 自定义滚动条 */
.custom-scroll::-webkit-scrollbar {
    width: 6px;
}

.custom-scroll::-webkit-scrollbar-track {
    background: #f8fafc; 
}

.custom-scroll::-webkit-scrollbar-thumb {
    background: #cbd5e1; 
    border-radius: 4px;
}

.custom-scroll::-webkit-scrollbar-thumb:hover {
    background: #94a3b8; 
}

/* 互动复习模式预览样式 */
.preview-review-mask {
    color: transparent !important;
    text-shadow: 0 0 8px rgba(0,0,0,0.4);
    background-color: #e2e8f0;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
    user-select: none;
}

.preview-review-mask:active {
    color: inherit !important;
    text-shadow: none;
    background-color: transparent;
}