/* 案例展示页动画 */

:root {
    --case-anim-ease: cubic-bezier(0.22, 1, 0.36, 1);
    --case-anim-duration: 0.75s;
}

.case-anim-section [class$="-title"] {
    opacity: 0;
    transform: translateY(calc(32px * var(--layout-scale)));
    transition:
        opacity var(--case-anim-duration) var(--case-anim-ease),
        transform var(--case-anim-duration) var(--case-anim-ease);
}

.case-anim-section.case-anim-in [class$="-title"] {
    opacity: 1;
    transform: translateY(0);
}

/* Hero 首屏 */
.case-hero-bg img {
    transform: scale(1.05);
    transition: transform 1.2s var(--case-anim-ease);
}

.case-hero.is-loaded .case-hero-bg img {
    transform: scale(1);
}

.case-hero-title,
.case-hero-desc {
    opacity: 0;
    transform: translateY(calc(-20px * var(--layout-scale)));
    transition:
        opacity 0.85s var(--case-anim-ease),
        transform 0.85s var(--case-anim-ease);
}

.case-hero.is-loaded .case-hero-title {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.1s;
}

.case-hero.is-loaded .case-hero-desc {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.22s;
}

.case-hero-title em {
    background-size: 200% auto;
}

.case-hero.is-loaded .case-hero-title em {
    animation: case-gradient-flow 3s linear 0.5s infinite;
}

@keyframes case-gradient-flow {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

.case-hero-carousel {
    opacity: 0;
    transform: translateY(calc(36px * var(--layout-scale)));
    transition:
        opacity 1s var(--case-anim-ease),
        transform 1s var(--case-anim-ease);
}

.case-hero.is-loaded .case-hero-carousel {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.35s;
}

.case-hero-platform {
    opacity: 0;
    transform: translateY(calc(20px * var(--layout-scale)));
    transition:
        opacity 0.8s var(--case-anim-ease),
        transform 0.8s var(--case-anim-ease);
}

.case-hero.is-loaded .case-hero-platform {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.55s;
}

.case-hero-stage img {
    transition: transform 0.5s var(--case-anim-ease);
}

.case-hero.is-loaded .case-hero-stage img {
    animation: case-stage-glow 5s ease-in-out 1s infinite;
}

@keyframes case-stage-glow {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(calc(-4px * var(--layout-scale))); }
}

/* 全部案例 */
.case-all-bg img {
    opacity: 0;
    transform: translateY(calc(20px * var(--layout-scale)));
    transition:
        opacity 1s var(--case-anim-ease),
        transform 1s var(--case-anim-ease);
}

.case-all.case-anim-in .case-all-bg img {
    opacity: 1;
    transform: translateY(0);
}

.case-all-toolbar {
    opacity: 0;
    transform: translateY(calc(20px * var(--layout-scale)));
    transition:
        opacity 0.7s var(--case-anim-ease),
        transform 0.7s var(--case-anim-ease);
}

.case-all.case-anim-in .case-all-toolbar {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.12s;
}

.case-all-tab {
    opacity: 0;
    transform: translateY(calc(10px * var(--layout-scale)));
    transition:
        opacity 0.45s var(--case-anim-ease),
        transform 0.45s var(--case-anim-ease),
        color 0.25s ease;
}

.case-all.case-anim-in .case-all-tab {
    opacity: 1;
    transform: translateY(0);
}

.case-all.case-anim-in .case-all-tab:nth-child(1) { transition-delay: 0.18s; }
.case-all.case-anim-in .case-all-tab:nth-child(2) { transition-delay: 0.22s; }
.case-all.case-anim-in .case-all-tab:nth-child(3) { transition-delay: 0.26s; }
.case-all.case-anim-in .case-all-tab:nth-child(4) { transition-delay: 0.3s; }
.case-all.case-anim-in .case-all-tab:nth-child(5) { transition-delay: 0.34s; }
.case-all.case-anim-in .case-all-tab:nth-child(6) { transition-delay: 0.38s; }
.case-all.case-anim-in .case-all-tab:nth-child(7) { transition-delay: 0.42s; }
.case-all.case-anim-in .case-all-tab:nth-child(8) { transition-delay: 0.46s; }
.case-all.case-anim-in .case-all-tab:nth-child(9) { transition-delay: 0.5s; }

.case-all-tab.is-just-active {
    animation: case-tab-pulse 0.4s var(--case-anim-ease);
}

@keyframes case-tab-pulse {
    0% { transform: translateY(0) scale(1); }
    50% { transform: translateY(calc(-2px * var(--layout-scale))) scale(1.04); }
    100% { transform: translateY(0) scale(1); }
}

.case-all-search {
    opacity: 0;
    transform: translateX(calc(16px * var(--layout-scale)));
    transition:
        opacity 0.6s var(--case-anim-ease),
        transform 0.6s var(--case-anim-ease),
        box-shadow 0.3s ease;
}

.case-all.case-anim-in .case-all-search {
    opacity: 1;
    transform: translateX(0);
    transition-delay: 0.28s;
}

.case-all-search:focus-within {
    box-shadow: 0 0 0 calc(3px * var(--layout-scale)) rgba(22, 84, 255, 0.12);
}

.case-all-card {
    opacity: 0;
    transform: translateY(calc(24px * var(--layout-scale))) scale(0.97);
    transition:
        opacity 0.55s var(--case-anim-ease),
        transform 0.55s var(--case-anim-ease),
        box-shadow 0.3s ease;
}

.case-all.case-anim-in .case-all-card {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.case-all.case-anim-in .case-all-card:nth-child(1) { transition-delay: 0.08s; }
.case-all.case-anim-in .case-all-card:nth-child(2) { transition-delay: 0.12s; }
.case-all.case-anim-in .case-all-card:nth-child(3) { transition-delay: 0.16s; }
.case-all.case-anim-in .case-all-card:nth-child(4) { transition-delay: 0.2s; }
.case-all.case-anim-in .case-all-card:nth-child(5) { transition-delay: 0.24s; }
.case-all.case-anim-in .case-all-card:nth-child(6) { transition-delay: 0.28s; }
.case-all.case-anim-in .case-all-card:nth-child(7) { transition-delay: 0.32s; }
.case-all.case-anim-in .case-all-card:nth-child(8) { transition-delay: 0.36s; }
.case-all.case-anim-in .case-all-card:nth-child(9) { transition-delay: 0.4s; }
.case-all.case-anim-in .case-all-card:nth-child(10) { transition-delay: 0.44s; }
.case-all.case-anim-in .case-all-card:nth-child(11) { transition-delay: 0.48s; }
.case-all.case-anim-in .case-all-card:nth-child(12) { transition-delay: 0.52s; }

.case-all-card-pic img {
    transition: transform 0.45s var(--case-anim-ease);
}

.case-all-card:hover .case-all-card-pic img {
    transform: scale(1.06);
}

.case-all-card.is-reflow-in {
    animation: case-card-reflow 0.45s var(--case-anim-ease);
}

@keyframes case-card-reflow {
    from {
        opacity: 0;
        transform: translateY(calc(16px * var(--layout-scale))) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.news-pagination {
    opacity: 0;
    transform: translateY(calc(16px * var(--layout-scale)));
    transition:
        opacity 0.6s var(--case-anim-ease),
        transform 0.6s var(--case-anim-ease);
}

.case-all.case-anim-in .news-pagination {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.55s;
}

/* 侧边栏 */
.case-page ~ .side-float {
    opacity: 0;
    transform: translateX(calc(20px * var(--layout-scale)));
    transition:
        opacity 0.6s var(--case-anim-ease) 0.8s,
        transform 0.6s var(--case-anim-ease) 0.8s;
}

body.case-anim-ready .side-float {
    opacity: 1;
    transform: translateX(0);
}

body.case-anim-ready .side-float-item {
    transition: transform 0.25s ease;
}

body.case-anim-ready .side-float-item:hover {
    transform: translateX(calc(-3px * var(--layout-scale)));
}

@media (prefers-reduced-motion: reduce) {
    .case-hero-bg img,
    .case-hero-title,
    .case-hero-desc,
    .case-hero-carousel,
    .case-hero-platform,
    .case-anim-section [class$="-title"],
    .case-all-bg img,
    .case-all-toolbar,
    .case-all-tab,
    .case-all-search,
    .case-all-card,
    .news-pagination,
    .side-float {
        opacity: 1 !important;
        transform: none !important;
        animation: none !important;
        transition: none !important;
    }
}