.yk-product-topic-page .breadcrumb-wrapper {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

.yk-product-topic-page .halo-blog-detail,
.yk-product-topic-page .yk-product-topic-article,
.yk-product-topic-page .blog-post-body,
.yk-product-topic-page .blog-post,
.yk-product-topic-page .halo-description {
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 0;
}

.yk-product-topic-page .yk-product-topic {
    --yk-topic-ink: #111827;
    --yk-topic-muted: #5b6472;
    --yk-topic-line: #e5e7eb;
    --yk-topic-soft: #f5f7fa;
    --yk-topic-accent: #e51b23;
    color: var(--yk-topic-ink);
    font-size: 16px;
    line-height: 1.72;
}

.yk-product-topic-page .yk-product-topic * {
    box-sizing: border-box;
}

.yk-product-topic-page .yk-topic-container {
    width: min(1120px, calc(100% - 40px));
    margin: 0 auto;
}

.yk-product-topic-page .yk-topic-hero {
    padding: clamp(28px, 4vw, 48px) 0;
    background: linear-gradient(135deg, #f2f4f7 0%, #ffffff 58%, #eef1f5 100%);
    overflow: hidden;
}

.yk-product-topic-page .yk-topic-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr);
    align-items: center;
    gap: clamp(24px, 4vw, 48px);
}

.yk-product-topic-page .yk-topic-kicker {
    display: inline-flex;
    margin: 0 0 12px;
    padding: 6px 11px;
    border: 1px solid #cfd5dc;
    border-radius: 999px;
    background: rgba(255,255,255,.72);
    color: #343c48;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .04em;
}

.yk-product-topic-page h1,
.yk-product-topic-page h2,
.yk-product-topic-page h3 {
    color: var(--yk-topic-ink);
    line-height: 1.22;
}

.yk-product-topic-page h1 {
    margin: 0 0 12px;
    font-size: clamp(32px, 4.2vw, 48px);
    letter-spacing: -.035em;
}

.yk-product-topic-page .yk-topic-lead {
    max-width: 680px;
    margin: 0 0 22px;
    color: #343c48;
    font-size: clamp(16px, 1.55vw, 19px);
}

.yk-product-topic-page .yk-topic-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 18px;
}

.yk-product-topic-page .yk-topic-button {
    display: inline-flex;
    min-height: 42px;
    align-items: center;
    justify-content: center;
    padding: 9px 16px;
    border: 1px solid var(--yk-topic-ink);
    border-radius: 6px;
    background: var(--yk-topic-ink);
    color: #fff;
    font-weight: 700;
    text-decoration: none;
}

.yk-product-topic-page .yk-topic-button:hover,
.yk-product-topic-page .yk-topic-button:focus {
    background: #fff;
    color: var(--yk-topic-ink);
}

.yk-product-topic-page .yk-topic-button--secondary {
    background: transparent;
    color: var(--yk-topic-ink);
}

.yk-product-topic-page .yk-topic-button--secondary:hover,
.yk-product-topic-page .yk-topic-button--secondary:focus {
    background: var(--yk-topic-ink);
    color: #fff;
}

.yk-product-topic-page .yk-topic-hero-media img {
    display: block;
    width: 100%;
    max-height: 300px;
    object-fit: contain;
    filter: drop-shadow(0 24px 34px rgba(17, 24, 39, .14));
}

.yk-product-topic-page .yk-topic-live {
    display: flex;
    max-width: 580px;
    gap: 11px;
    align-items: flex-start;
    margin: 18px 0 0;
    padding: 13px 15px;
    border: 1px solid #d8dee7;
    border-radius: 10px;
    background: rgba(255,255,255,.82);
}

.yk-product-topic-page .yk-topic-live-dot {
    width: 9px;
    height: 9px;
    flex: 0 0 9px;
    margin-top: 7px;
    border-radius: 50%;
    background: #8792a2;
}

.yk-product-topic-page .yk-topic-live.is-in-stock .yk-topic-live-dot {
    background: #169b62;
    box-shadow: 0 0 0 4px rgba(22,155,98,.12);
}

.yk-product-topic-page .yk-topic-live strong,
.yk-product-topic-page .yk-topic-live span:not(.yk-topic-live-dot),
.yk-product-topic-page .yk-topic-live small {
    display: block;
}

.yk-product-topic-page .yk-topic-live strong { font-size: 16px; }
.yk-product-topic-page .yk-topic-live span:not(.yk-topic-live-dot) { margin-top: 2px; color: var(--yk-topic-accent); font-size: 20px; font-weight: 800; }
.yk-product-topic-page .yk-topic-live small { margin-top: 3px; color: var(--yk-topic-muted); font-size: 12px; }

.yk-product-topic-page .yk-topic-jump {
    position: sticky;
    top: 0;
    z-index: 20;
    border-top: 1px solid var(--yk-topic-line);
    border-bottom: 1px solid var(--yk-topic-line);
    background: rgba(255,255,255,.96);
    backdrop-filter: blur(10px);
}

.yk-product-topic-page .yk-topic-jump-inner {
    display: flex;
    gap: 18px;
    align-items: center;
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
}

.yk-product-topic-page .yk-topic-jump a {
    display: inline-flex;
    padding: 11px 0;
    font-size: 14px;
    color: var(--yk-topic-ink);
    font-weight: 650;
    text-decoration: none;
}

.yk-product-topic-page .yk-topic-jump .yk-topic-jump-buy {
    margin-left: auto;
    color: var(--yk-topic-accent);
}

.yk-product-topic-page .yk-topic-section {
    padding: clamp(38px, 5vw, 58px) 0;
}

.yk-product-topic-page .yk-topic-section--soft {
    background: var(--yk-topic-soft);
}

.yk-product-topic-page .yk-topic-heading {
    max-width: 780px;
    margin: 0 auto 24px;
    text-align: center;
}

.yk-product-topic-page .yk-topic-heading h2 {
    margin: 0 0 10px;
    font-size: clamp(26px, 3vw, 36px);
}

.yk-product-topic-page .yk-topic-heading p {
    margin: 0;
    color: var(--yk-topic-muted);
}

.yk-product-topic-page .yk-topic-feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.yk-product-topic-page .yk-topic-feature {
    padding: 18px;
    border: 1px solid var(--yk-topic-line);
    border-radius: 12px;
    background: #fff;
}

.yk-product-topic-page .yk-topic-feature strong {
    display: block;
    margin-bottom: 8px;
    font-size: 18px;
}

.yk-product-topic-page .yk-topic-feature p {
    margin: 0;
    color: var(--yk-topic-muted);
}

.yk-product-topic-page .yk-topic-bundle-group + .yk-topic-bundle-group {
    margin-top: 30px;
}

.yk-product-topic-page .yk-topic-bundle-group h3 {
    margin: 0 0 18px;
    font-size: 22px;
}

.yk-product-topic-page .yk-topic-bundle-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.yk-product-topic-page .yk-topic-bundle-card {
    display: flex;
    min-height: 100%;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--yk-topic-line);
    border-radius: 12px;
    background: #fff;
}

.yk-product-topic-page .yk-topic-bundle-card img {
    display: block;
    width: 100%;
    height: 170px;
    padding: 8px;
    object-fit: contain;
    background: #f8f9fb;
}

.yk-product-topic-page .yk-topic-video-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.yk-product-topic-page .yk-topic-video-card {
    overflow: hidden;
    border: 1px solid var(--yk-topic-line);
    border-radius: 14px;
    background: #fff;
}

.yk-product-topic-page .yk-topic-video-frame {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #10131a;
}

.yk-product-topic-page .yk-topic-video-frame iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.yk-product-topic-page .yk-topic-video-copy { padding: 16px 18px 18px; }
.yk-product-topic-page .yk-topic-video-copy span { color: var(--yk-topic-accent); font-size: 12px; font-weight: 800; }
.yk-product-topic-page .yk-topic-video-copy h3 { margin: 6px 0 7px; font-size: 19px; }
.yk-product-topic-page .yk-topic-video-copy p { margin: 0; color: var(--yk-topic-muted); font-size: 14px; }

.yk-product-topic-page .yk-topic-accessory-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 14px;
}

.yk-product-topic-page .yk-topic-accessory-card {
    overflow: hidden;
    border: 1px solid var(--yk-topic-line);
    border-radius: 12px;
    background: #fff;
}

.yk-product-topic-page .yk-topic-accessory-image {
    display: block;
    aspect-ratio: 1 / 1;
    padding: 10px;
    background: #fff;
}

.yk-product-topic-page .yk-topic-accessory-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.yk-product-topic-page .yk-topic-accessory-copy { padding: 12px 13px 14px; border-top: 1px solid var(--yk-topic-line); }
.yk-product-topic-page .yk-topic-accessory-copy h3 { margin: 0 0 8px; font-size: 14px; line-height: 1.42; }
.yk-product-topic-page .yk-topic-accessory-copy h3 a { color: var(--yk-topic-ink); text-decoration: none; }
.yk-product-topic-page .yk-topic-accessory-price { margin: 0; color: var(--yk-topic-accent); font-size: 17px; font-weight: 800; }
.yk-product-topic-page .yk-topic-accessory-stock { margin: 3px 0 0; color: var(--yk-topic-muted); font-size: 12px; }
.yk-product-topic-page .yk-topic-accessory-card.is-in-stock .yk-topic-accessory-stock { color: #128154; font-weight: 700; }
.yk-product-topic-page .yk-topic-accessory-card.is-out-of-stock { opacity: .72; }

.yk-product-topic-page .yk-topic-bundle-copy {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 13px;
}

.yk-product-topic-page .yk-topic-bundle-copy h3,
.yk-product-topic-page .yk-topic-bundle-copy h4 {
    margin: 0 0 7px;
    font-size: 16px;
}

.yk-product-topic-page .yk-topic-bundle-copy p {
    margin: 0 0 11px;
    color: var(--yk-topic-muted);
    font-size: 13px;
    line-height: 1.52;
}

.yk-product-topic-page .yk-topic-bundle-copy a {
    margin-top: auto;
    color: var(--yk-topic-accent);
    font-weight: 700;
    text-decoration: none;
}

.yk-product-topic-page .yk-topic-spec-wrap {
    overflow-x: auto;
    border: 1px solid var(--yk-topic-line);
    border-radius: 12px;
    background: #fff;
}

.yk-product-topic-page .yk-topic-spec {
    width: 100%;
    min-width: 620px;
    margin: 0;
    border-collapse: collapse;
}

.yk-product-topic-page .yk-topic-spec th,
.yk-product-topic-page .yk-topic-spec td {
    padding: 11px 15px;
    border-bottom: 1px solid var(--yk-topic-line);
    text-align: left;
    vertical-align: top;
}

.yk-product-topic-page .yk-topic-spec th {
    width: 28%;
    background: #f5f7fa;
}

.yk-product-topic-page .yk-topic-note {
    margin-top: 24px;
    padding: 17px;
    border-left: 4px solid var(--yk-topic-accent);
    background: #fff;
}

.yk-product-topic-page .yk-topic-note p:last-child {
    margin-bottom: 0;
}

.yk-product-topic-page .yk-topic-bottom-cta {
    padding: 32px 20px;
    background: #111827;
    color: #fff;
    text-align: center;
}

.yk-product-topic-page .yk-topic-bottom-cta h2 {
    margin: 0 0 10px;
    color: #fff;
}

.yk-product-topic-page .yk-topic-bottom-cta p {
    margin: 0 0 20px;
    color: #d1d5db;
}

.yk-product-topic-page .yk-topic-bottom-cta .yk-topic-button {
    border-color: #fff;
    background: #fff;
    color: #111827;
}

.yk-product-topic-page .yk-topic-bottom-cta .yk-topic-button:hover,
.yk-product-topic-page .yk-topic-bottom-cta .yk-topic-button:focus {
    background: transparent;
    color: #fff;
}

.yk-product-topic-article:not(.yk-blog-detail-article) .blog-date,
.yk-product-topic-article:not(.yk-blog-detail-article) .socialLinks,
.yk-product-topic-article:not(.yk-blog-detail-article) .tags {
    display: none;
}

.yk-product-topic-article:not(.yk-blog-detail-article) .yk-topic-summary {
    display: grid;
    grid-template-columns: minmax(180px, 280px) minmax(0, 1fr);
    align-items: center;
    gap: 24px;
    padding: 20px;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    background: #fff;
}

.yk-product-topic-article:not(.yk-blog-detail-article) .yk-topic-summary img {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: contain;
    background: #f8f9fb;
}

.yk-product-topic-article:not(.yk-blog-detail-article) .yk-topic-summary p {
    margin: 0;
    color: #5b6472;
}

@media (max-width: 900px) {
    .yk-product-topic-page .yk-topic-hero-grid {
        grid-template-columns: 1fr;
    }

    .yk-product-topic-page .yk-topic-hero-copy {
        text-align: center;
    }

    .yk-product-topic-page .yk-topic-lead {
        margin-right: auto;
        margin-left: auto;
    }

    .yk-product-topic-page .yk-topic-actions {
        justify-content: center;
    }

    .yk-product-topic-page .yk-topic-hero-media img {
        max-height: 300px;
    }

    .yk-product-topic-page .yk-topic-feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .yk-product-topic-page .yk-topic-bundle-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .yk-product-topic-page .yk-topic-accessory-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .yk-product-topic-page .breadcrumb-wrapper,
    .yk-product-topic-page .yk-topic-container {
        width: 100%;
        padding-right: 16px;
        padding-left: 16px;
    }

    .yk-product-topic-page h1 {
        font-size: 34px;
    }

    .yk-product-topic-page .yk-topic-feature-grid,
    .yk-product-topic-page .yk-topic-bundle-grid,
    .yk-product-topic-page .yk-topic-video-grid {
        grid-template-columns: 1fr;
    }

    .yk-product-topic-page .yk-topic-accessory-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .yk-product-topic-page .yk-topic-live {
        margin-right: auto;
        margin-left: auto;
        text-align: left;
    }

    .yk-product-topic-article:not(.yk-blog-detail-article) .yk-topic-summary {
        grid-template-columns: 1fr;
    }

    .yk-product-topic-page .yk-topic-jump-inner {
        gap: 15px;
    }

    .yk-product-topic-page .yk-topic-jump .yk-topic-jump-buy {
        margin-left: 0;
    }
}