/**
 * 3D视差轮播图样式
 * 基于 LayersAnimation 效果实现
 */

/* 主容器 */
.parallax-slider {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* 内容区域 */
.parallax-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.content__inner {
    width: 90%;
    max-width: 1200px;
    padding: 2rem;
    text-align: center;
    color: white;
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s ease;
}

.content__inner.hidden {
    display: none;
}

/* 幻灯片文本 */
.slide-text {
    animation: fadeInUp 1s ease-out;
}

.slide-subtitle {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    margin-bottom: 1rem;
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.slide-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
    margin: 0 0 1.5rem;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
    background: linear-gradient(135deg, #fff 0%, #f0f0f0 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.slide-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    line-height: 1.6;
    margin: 0 auto 2rem;
    max-width: 600px;
    opacity: 0.9;
    text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.2);
}

.slide-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    text-decoration: none;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.1) 100%);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    transition: all 0.3s ease;
    cursor: pointer;
    pointer-events: auto;
}

.slide-button:hover {
    transform: translateY(-2px);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.2) 100%);
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.button-arrow {
    fill: currentColor;
    transition: transform 0.3s ease;
}

.slide-button:hover .button-arrow {
    transform: translateX(5px);
}

/* 图层容器 */
.layers {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.layers__item {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    opacity: 1;
    clip-path: polygon(0% 100%, 100% 100%, 100% 100%, 0% 100%);
    will-change: clip-path, opacity;
}

.layers__item-img {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transform-origin: center;
    will-change: transform, filter;
}

/* 控制按钮 */
.parallax-controls {
    position: absolute;
    top: 50%;
    width: 100%;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 2rem;
    pointer-events: none;
    z-index: 200;
}

.control-btn {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    pointer-events: auto;
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: scale(1.1);
}

.control-btn svg {
    width: 24px;
    height: 24px;
    fill: white;
}

/* 进度指示器 */
.parallax-indicators {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
    z-index: 200;
}

.indicator-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.indicator-dot::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    background: white;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.indicator-dot:hover {
    background: rgba(255, 255, 255, 0.5);
}

.indicator-dot.active {
    background: white;
    width: 40px;
    border-radius: 20px;
}

.indicator-dot.active::after {
    width: 100%;
    height: 100%;
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .slide-title {
        font-size: 2rem;
    }

    .slide-description {
        font-size: 1rem;
        padding: 0 1rem;
    }

    .slide-button {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }

    .control-btn {
        width: 50px;
        height: 50px;
    }

    .parallax-controls {
        padding: 0 1rem;
    }

    .parallax-indicators {
        bottom: 2rem;
    }
}

@media (max-width: 480px) {
    .slide-subtitle {
        font-size: 0.875rem;
        padding: 0.375rem 1rem;
    }

    .slide-title {
        font-size: 1.75rem;
    }

    .slide-description {
        font-size: 0.875rem;
    }
}

/* 加载状态 */
.parallax-slider.loading {
    position: relative;
}

.parallax-slider.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 50px;
    height: 50px;
    margin: -25px 0 0 -25px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 禁用选择 */
.parallax-slider * {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* 平滑滚动 */
.parallax-slider {
    scroll-behavior: smooth;
}

/* 触摸设备优化 */
@media (hover: none) {
    .control-btn:hover,
    .slide-button:hover,
    .indicator-dot:hover {
        transform: none;
    }
}

/* 性能优化 */
.parallax-slider * {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.layers__item,
.layers__item-img {
    backface-visibility: hidden;
    transform: translateZ(0);
}