/* 
 * 高级滚动进度条样式
 * 提供多种现代化、引人注目的滚动进度指示器效果
 */

/* 基础样式调整 */
.scroll-progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px; /* 稍微增加高度 */
    background: rgba(0, 0, 0, 0.05);
    z-index: 9999;
    overflow: hidden;
}

/* 彩虹渐变效果 */
.scroll-progress-rainbow .scroll-progress-bar {
    height: 100%;
    background: linear-gradient(
        90deg,
        #ff0000, #ff7300, #fffb00, #48ff00, 
        #00ffd5, #002bff, #7a00ff, #ff00c8, #ff0000
    );
    background-size: 200% 100%;
    animation: rainbow-move 4s linear infinite;
    transform-origin: left;
    will-change: transform;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
}

@keyframes rainbow-move {
    0% { background-position: 0% 0; }
    100% { background-position: 200% 0; }
}

/* 脉冲光效果 */
.scroll-progress-pulse .scroll-progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    height: 100%;
    width: 100px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
    animation: pulse-beam 2s infinite;
    transform: translateX(0);
}

@keyframes pulse-beam {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(1000%); }
}

/* 霓虹灯效果 */
.scroll-progress-neon .scroll-progress-bar {
    height: 100%;
    background: var(--primary-color);
    transform-origin: left;
    box-shadow: 0 0 10px 1px var(--primary-color),
                0 0 15px 2px var(--primary-color);
    will-change: transform, box-shadow;
}

/* 双层进度条效果 */
.scroll-progress-double {
    height: 8px;
    display: flex;
    flex-direction: column;
}

.scroll-progress-double .scroll-progress-bar {
    height: 50%;
    background: var(--primary-color);
    transform-origin: left;
}

.scroll-progress-double .scroll-progress-secondary {
    height: 50%;
    background: var(--secondary-color);
    transform-origin: left;
    transform: scaleX(0);
    transition-delay: 0.1s;
}

/* 分段进度条 */
.scroll-progress-segmented .scroll-progress-bar {
    height: 100%;
    background-image: repeating-linear-gradient(
        90deg,
        var(--primary-color) 0px,
        var(--primary-color) 20px,
        var(--secondary-color) 20px,
        var(--secondary-color) 40px
    );
    transform-origin: left;
    background-size: 200% 100%;
    animation: segment-slide 3s linear infinite;
}

@keyframes segment-slide {
    0% { background-position: 0% 0; }
    100% { background-position: 200% 0; }
}

/* 带有百分比指示的进度条 */
.scroll-progress-with-indicator {
    display: flex;
    align-items: center;
    height: auto;
    background: transparent;
}

.scroll-progress-with-indicator .scroll-progress-bar {
    height: 4px;
    flex-grow: 1;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform-origin: left;
}

.scroll-progress-with-indicator .scroll-progress-percentage {
    background: var(--primary-color);
    color: white;
    padding: 2px 8px;
    font-size: 12px;
    font-weight: bold;
    border-radius: 10px;
    margin-right: 15px;
    transform: translateY(0);
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.scroll-progress-with-indicator .scroll-progress-percentage.active {
    opacity: 1;
    transform: translateY(0);
}

/* 移动端优化 */
@media (max-width: 768px) {
    .scroll-progress-with-indicator .scroll-progress-percentage {
        font-size: 10px;
        padding: 1px 6px;
    }
    
    .scroll-progress-double {
        height: 6px;
    }
}