.royal-timeline-flow {
    --royal-timeline-flow-ready: 1;
    --royal-flow-pitch: 160px;
    --royal-flow-bg: #f5f8fc;
    --royal-flow-surface: rgba(255, 255, 255, .78);
    --royal-flow-line: rgba(15, 72, 135, .22);
    --royal-flow-accent: #126dff;
    --royal-flow-cyan: #31c8ff;
    --royal-flow-highlight: #0b62de;
    --royal-flow-text: #0c1b33;
    --royal-flow-muted: rgba(12, 27, 51, .62);
    position: relative;
    width: 100vw;
    max-width: 100vw;
    margin-inline: calc(50% - 50vw);
    overflow: hidden;
    overflow: clip;
    background:
        radial-gradient(circle at 18% 18%, rgba(49, 200, 255, .12), transparent 26%),
        linear-gradient(180deg, #f9fbff 0%, #eef4fb 100%);
    background-color: var(--royal-flow-bg);
    color: var(--royal-flow-text);
    padding: clamp(2.5rem, 5vw, 4rem) 0 clamp(2.25rem, 4vw, 3.25rem);
    font-family: Arial, "Microsoft YaHei", sans-serif;
}

.royal-timeline-flow *,
.royal-timeline-flow *::before,
.royal-timeline-flow *::after {
    box-sizing: border-box;
}

.royal-timeline-flow [hidden] {
    display: none !important;
}

.royal-timeline-flow__header {
    width: min(960px, calc(100% - 2rem));
    margin: 0 auto 1.75rem;
    padding: 0;
    text-align: center;
}

.royal-timeline-flow__header h2 {
    margin: .35rem 0 .5rem;
    font-size: 2rem;
    line-height: 1.2;
    letter-spacing: 0;
}

.royal-timeline-flow__header p {
    margin: 0;
    color: var(--royal-flow-muted);
    line-height: 1.7;
}

.royal-timeline-flow__kicker {
    color: var(--royal-flow-accent);
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: 0;
}

.royal-timeline-flow__semantic {
    width: min(960px, calc(100% - 2rem));
    margin: 0 auto;
    padding: 0;
    list-style: none;
}

.royal-timeline-flow__semantic-node {
    border-left: 2px solid var(--royal-flow-line);
    padding: 0 0 1.5rem 1rem;
}

.royal-timeline-flow__semantic-node time {
    color: var(--royal-flow-highlight);
    font-weight: 700;
}

.royal-timeline-flow__semantic-node h3 {
    margin: .25rem 0;
    font-size: 1.05rem;
    line-height: 1.4;
    letter-spacing: 0;
    overflow-wrap: anywhere;
}

.royal-timeline-flow__semantic-node p {
    margin: 0;
    color: var(--royal-flow-muted);
    line-height: 1.6;
    overflow-wrap: anywhere;
}

.royal-timeline-flow[data-flow-enhanced] .royal-timeline-flow__semantic {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

.royal-timeline-flow__viewport {
    position: relative;
    width: 100%;
    overflow: hidden;
    padding: 0;
    border: 0;
}

.royal-timeline-flow__viewport::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        linear-gradient(90deg, rgba(18, 109, 255, .055) 1px, transparent 1px),
        linear-gradient(180deg, rgba(18, 109, 255, .045) 1px, transparent 1px),
        radial-gradient(circle at 34% 46%, rgba(49, 200, 255, .08), transparent 26%),
        radial-gradient(circle at 72% 58%, rgba(18, 109, 255, .07), transparent 28%);
    background-size: 96px 96px, 96px 96px, auto, auto;
}

.royal-timeline-flow[data-flow-controller]:not([data-flow-enhanced]) .royal-timeline-flow__viewport:not([hidden]) {
    display: block !important;
    position: absolute;
    inset-inline: 0;
    height: 0;
    visibility: hidden;
    pointer-events: none;
}

.royal-timeline-flow[data-flow-enhanced] .royal-timeline-flow__viewport {
    position: relative;
    height: 25rem;
    visibility: visible;
    cursor: grab;
    user-select: none;
    touch-action: pan-y;
}

.royal-timeline-flow[data-flow-enhanced][data-flow-dragging] .royal-timeline-flow__viewport {
    cursor: grabbing;
}

.royal-timeline-flow__track {
    display: flex;
    width: max-content;
    height: 100%;
    will-change: transform;
    contain: layout paint style;
    backface-visibility: hidden;
    transform: translate3d(0, 0, 0);
    position: relative;
    z-index: 1;
}

.royal-timeline-flow__sequence {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: var(--royal-flow-pitch);
    gap: 0;
    height: 100%;
}

.royal-timeline-flow__node {
    position: relative;
    width: var(--royal-flow-pitch);
    min-width: 0;
    height: 100%;
    padding: 0 .8rem;
    opacity: 1;
}

.royal-timeline-flow__node::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(15, 72, 135, .24), transparent);
}

.royal-timeline-flow__dot {
    position: absolute;
    top: calc(50% - .4rem);
    left: calc(50% - .4rem);
    width: .8rem;
    height: .8rem;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 0 .35rem rgba(18, 109, 255, .12), 0 0 18px rgba(18, 109, 255, .36);
}

.royal-timeline-flow__stem {
    position: absolute;
    left: 50%;
    width: 1px;
    height: 4.5rem;
    background: linear-gradient(180deg, rgba(18, 109, 255, .34), rgba(18, 109, 255, 0));
}

.royal-timeline-flow__node.is-top .royal-timeline-flow__stem {
    bottom: 50%;
}

.royal-timeline-flow__node.is-bottom .royal-timeline-flow__stem {
    top: 50%;
}

.royal-timeline-flow__copy,
.royal-timeline-flow__node > time,
.royal-timeline-flow__node > h3,
.royal-timeline-flow__node > p {
    position: absolute;
    left: .8rem;
    right: .8rem;
    min-width: 0;
}

.royal-timeline-flow__copy {
    max-height: 7.2rem;
    overflow: hidden;
}

.royal-timeline-flow__node.is-top .royal-timeline-flow__copy,
.royal-timeline-flow__node.is-top > time {
    bottom: calc(50% + 5rem);
}

.royal-timeline-flow__node.is-bottom .royal-timeline-flow__copy,
.royal-timeline-flow__node.is-bottom > time,
.royal-timeline-flow__node:not(.is-top):not(.is-bottom) > time {
    top: calc(50% + 5rem);
}

.royal-timeline-flow__node > h3 {
    top: calc(50% + 6.75rem);
}

.royal-timeline-flow__node > p {
    top: calc(50% + 8.7rem);
}

.royal-timeline-flow__copy time,
.royal-timeline-flow__node > time {
    color: var(--royal-flow-highlight);
    font-size: 1.1rem;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.royal-timeline-flow__copy h3,
.royal-timeline-flow__node > h3 {
    margin: .35rem 0;
    font-size: 1rem;
    line-height: 1.35;
    letter-spacing: 0;
    overflow-wrap: anywhere;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.royal-timeline-flow__copy p,
.royal-timeline-flow__node > p {
    margin: 0;
    color: var(--royal-flow-muted);
    font-size: .85rem;
    line-height: 1.55;
    overflow-wrap: anywhere;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.royal-timeline-flow__node.is-top > h3 {
    bottom: calc(50% + 7rem);
    top: auto;
}

.royal-timeline-flow__node.is-top > p {
    bottom: calc(50% + 9rem);
    top: auto;
}

.royal-timeline-flow__controls {
    position: absolute;
    inset: 0;
    z-index: 4;
    pointer-events: none;
}

.royal-timeline-flow__control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    padding: 0;
    border: 1px solid rgba(18, 109, 255, .18);
    border-radius: 50%;
    background: var(--royal-flow-surface);
    color: var(--royal-flow-text);
    box-shadow: 0 12px 32px rgba(12, 27, 51, .08);
    cursor: pointer;
    font-size: 1.35rem;
    line-height: 1;
    pointer-events: auto;
}

.royal-timeline-flow__control--prev {
    left: clamp(.75rem, 2vw, 1.5rem);
}

.royal-timeline-flow__control--next {
    right: clamp(.75rem, 2vw, 1.5rem);
}

.royal-timeline-flow__control:hover {
    color: var(--royal-flow-accent);
    border-color: rgba(18, 109, 255, .32);
    background: rgba(255, 255, 255, .92);
}

.royal-timeline-flow__control:focus-visible {
    outline: 3px solid var(--royal-flow-highlight);
    outline-offset: 3px;
}

.royal-timeline-flow__control-glyph {
    display: block;
    font-family: Arial, "Microsoft YaHei", sans-serif;
    font-weight: 700;
    line-height: 1;
    transform: translateY(-1px);
}

.royal-timeline-flow__stats {
    width: min(1280px, calc(100% - 3rem));
    margin: 1.5rem auto 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
    border-top: 1px solid var(--royal-flow-line);
}

.royal-timeline-flow__stats article {
    padding: 1.25rem 1rem 0;
}

.royal-timeline-flow__stats strong,
.royal-timeline-flow__stats span {
    display: block;
}

.royal-timeline-flow__stats strong {
    color: var(--royal-flow-highlight);
    font-size: 1.5rem;
    line-height: 1.2;
}

.royal-timeline-flow__stats span,
.royal-timeline-flow__stats p {
    color: var(--royal-flow-muted);
}

.royal-timeline-flow__stats p {
    margin: .35rem 0 0;
    line-height: 1.55;
}

.royal-timeline-flow__empty {
    width: min(1280px, calc(100% - 3rem));
    margin: 0 auto;
    padding: 2rem;
    border: 1px solid var(--royal-flow-line);
    color: var(--royal-flow-muted);
    text-align: center;
}

@media (max-width: 900px) {
    .royal-timeline-flow {
        width: 100%;
        max-width: 100%;
        margin-inline: 0;
        padding: 2rem 0;
    }

    .royal-timeline-flow__header {
        width: min(calc(100% - 2rem), 40rem);
    }

    .royal-timeline-flow__header h2 {
        font-size: 1.6rem;
    }

    .royal-timeline-flow__semantic {
        width: min(calc(100% - 2rem), 40rem);
    }

    .royal-timeline-flow__controls {
        display: none !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    .royal-timeline-flow__controls {
        display: none !important;
    }

    .royal-timeline-flow[data-flow-enhanced] .royal-timeline-flow__viewport {
        position: absolute;
        height: 0;
        visibility: hidden;
        pointer-events: none;
    }

    .royal-timeline-flow[data-flow-enhanced] .royal-timeline-flow__semantic {
        position: static;
        width: min(960px, calc(100% - 2rem));
        height: auto;
        margin: 0 auto;
        overflow: visible;
        clip: auto;
        white-space: normal;
    }
}