/* 页面跳转过渡效果 - 专业简洁 */

/* 页面跳转加载条 */
.page-transition-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--primary-gradient);
    z-index: 10000;
    transition: width 0.3s ease;
    width: 0;
}

/* 页面内容过渡 */
.page-content {
    animation: pageEnter 0.25s ease;
}

@keyframes pageEnter {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 链接点击反馈 */
a:active,
button:active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
}

/* 表单提交状态 */
.form-submitting {
    position: relative;
    pointer-events: none;
}

.form-submitting::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 页面切换时的遮罩 */
.page-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(248, 250, 252, 0.7);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.page-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* 骨架屏加载效果 */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--background-tertiary) 25%,
        var(--background-secondary) 50%,
        var(--background-tertiary) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.skeleton-text {
    height: 1rem;
    border-radius: 4px;
    margin-bottom: 0.5rem;
}

.skeleton-title {
    height: 1.5rem;
    width: 60%;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.skeleton-card {
    height: 200px;
    border-radius: 8px;
}