/* ========== 基础布局 ========== */
.f-collage-tabs__wrapper {
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* ========== 图片区域 ========== */
.f-collage-tabs__images {
    position: relative;
    width: 100%;
    overflow: hidden;
}
.f-tab-image {
    display: none;
    width: 100%;
    animation: f-tab-fade-in 0.4s ease;
}

.f-tab-image.active {
    display: block;
}

.f-tab-image .f-image {
    min-height: 100%;
}

/* ========== Tab 导航 ========== */
.f-image-and-text-tabs__header {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    gap: 24px;
    padding: 20px 0 0;
    overflow-y: hidden;
    overflow-x: auto;
    box-shadow: none;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    margin: 0 auto;
}

.f-image-and-text-tabs__header::-webkit-scrollbar {
    display: none;
    width: 0;
    height: 0;
}

.f-collage-tabs .f-tab-header {
    position: relative;
    flex-shrink: 0;
    padding: 4px 0;
    font-family: var(--font-stack-header);
    font-size: calc((var(--font-h5-mobile)) / (var(--font-base-size)) * 1rem);
    font-weight: 500;
    color: rgb(var(--color-foreground-secondary));
    background: transparent;
    border: none;
    cursor: pointer;
    transition: color 0.3s ease;
    white-space: nowrap;
}


.f-collage-tabs .f-image-and-text-tabs__wrapper .f-tab-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background-color: currentColor;
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.f-collage-tabs .f-tab-header:hover {
    color: var(--color-foreground, #111827);
}

.f-collage-tabs .f-tab-header.active {
    color: var(--color-foreground, #111827);
    font-weight: 600;
}

.f-collage-tabs .f-tab-header.active::after {
    transform: scaleX(1);
}

@media screen and (min-width: 768px) {
    .f-image-and-text-tabs__header {
        gap: 40px;
    }

    .f-collage-tabs .f-tab-header {
        font-size: calc((var(--font-h5-tablet)) / (var(--font-base-size)) * 1rem);
    }
}

@media screen and (min-width: 1024px) {
    .f-collage-tabs .f-tab-header {
        padding: 6px 0;
        font-size: calc((var(--font-h5-desktop)) / (var(--font-base-size)) * 1rem);
    }
}

/* ========== 内容区域 ========== */
.f-collage-tabs__contents {
    position: relative;
}

.f-tab-content {
    display: none;
    animation: f-tab-fade-in 0.4s ease;
}

.f-tab-content.active {
    display: block;
}

.f-tab-content__wrapper {
    padding: 0;
}

/* ========== 内容样式 ========== */
.f-collage-tab--content {
    max-width: 100%;
    padding: 32px 20px 48px;
    word-wrap: break-word;
}

.f-collage-tab--content-inner {
    max-width: 800px;
    margin: 0 auto;
}

/* 文本对齐 */
.f-collage-tab--content-inner.m\\:text-left {
    text-align: left;
}

.f-collage-tab--content-inner.m\\:text-center {
    text-align: center;
}

.f-collage-tab--content-inner.m\\:text-right {
    text-align: right;
}

/* 副标题 */
.f-collage-tab--subheading {
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: rgb(var(--color-foreground-secondary));
    margin: 0 0 8px 0;
}

/* 标题 */
.f-collage-tab--heading {
    margin: 0 0 16px 0;
    font-family: var(--font-stack-header);
    font-weight: 700;
    line-height: 1.2;
}

.f-collage-tab--subheading + .f-collage-tab--heading {
    margin-top: 8px;
}

@media screen and (max-width: 767px) {
    .f-collage-tab--subheading + .f-collage-tab--heading {
        margin-top: 4px;
    }
}

/* 描述 */
.f-collage-tab--description {
    font-size: 16px;
    line-height: 1.8;
    color: rgb(var(--color-foreground-secondary));
}

.f-collage-tab--heading + .f-collage-tab--description {
    margin-top: 16px;
}

.f-collage-tab--description p {
    margin-bottom: 12px;
}

.f-collage-tab--description p:last-child {
    margin-bottom: 0;
}

/* 按钮 */
.f-collage-tab--button {
    margin-top: 28px;
}

.f-collage-tab--button .f-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 12px 32px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
}

/* ========== 动画 ========== */
@keyframes f-tab-fade-in {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== 响应式 ========== */
@media screen and (min-width: 768px) {
    .f-collage-tab--content {
        padding: 40px 32px 0;
    }

    .f-collage-tab--content-inner {
        max-width: 900px;
    }
}

@media screen and (min-width: 1024px) {
    .f-collage-tab--content {
        padding: 48px 40px 0;
    }

    .f-collage-tab--content-inner {
        max-width: 1000px;
    }
}

@media screen and (min-width: 1280px) {
    .f-collage-tab--content {
        padding: 56px 48px 0;
    }
}

/* ========== 暗色模式适配 ========== */
@media (prefers-color-scheme: dark) {
    .f-image-and-text-tabs__header {
        border-bottom-color: rgba(255, 255, 255, 0.08);
    }

    .f-collage-tabs .f-tab-header {
        color: rgba(255, 255, 255, 0.6);
    }

    .f-collage-tabs .f-tab-header:hover {
        color: #ffffff;
    }

    .f-collage-tabs .f-tab-header.active {
        color: #ffffff;
    }

    .f-collage-tab--description {
        color: rgba(255, 255, 255, 0.7);
    }

    .f-collage-tab--subheading {
        color: rgba(255, 255, 255, 0.5);
    }
}

/* ========== 图片容器 - 桌面/移动端不同比例 ========== */
.f-collage-tabs .f-image {
    position: relative;
    width: 100%;
    overflow: hidden;
    aspect-ratio: var(--aspect-ratio, 1/1);
}

@media screen and (max-width: 767px) {
    .f-collage-tabs .f-image {
        aspect-ratio: var(--aspect-ratio-mobile, var(--aspect-ratio, 1/1));
    }
}

/* ========== f-media 内部元素填充 ========== */
.f-collage-tabs .f-image .f-media {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.f-collage-tabs .f-image .f-media .f-media__wrapper {
    display: block;
    width: 100%;
    height: 100%;
}

.f-collage-tabs .f-image .f-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ========== Tab 图片切换 ========== */
.f-tab-image {
    display: none;
    width: 100%;
    animation: f-tab-fade-in 0.4s ease;
}

.f-tab-image.active {
    display: block;
}

@keyframes f-tab-fade-in {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}