:root {
    --sp-sidebar-left: 250px;
    --sp-sidebar-right: 300px;
    --sp-content-gap: 60px;
    --sp-color-gold: #CBA052;
    --sp-color-gold-dark: #A8894D;
    --sp-color-dark: #1A1A1A;
    --sp-color-dark-bg: #072B31;
    --sp-color-light: #FFFFFF;
    --sp-color-gray: #666666;
    --sp-color-gray-light: #F5F5F5;
    --sp-color-gray-border: #B7B7B7;
    --sp-font-heading: 'Playfair Display', Georgia, serif;
    --sp-font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --sp-radius-sm: 4px;
    --sp-radius-md: 10px;
    --sp-radius-lg: 16px;
    --sp-transition: 0.3s ease;
    --sp-container-width: 1760px;
    --sp-container-padding: 80px;
}

.sp-main {
    font-family: var(--sp-font-body);
    font-size: 18px;
    line-height: 1.6;
    color: var(--sp-color-dark);
    overflow-x: hidden;
}

.sp-main *,
.sp-main *::before,
.sp-main *::after {
    box-sizing: border-box;
}

.sp-main img {
    max-width: 100%;
    height: auto;
    display: block;
}

.sp-hero {
    position: relative;
}

.sp-hero__adjacent {
    position: absolute;
    left: var(--sp-container-padding);
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sp-hero__adjacent-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 140px;
    text-decoration: none;
    background: rgba(0, 0, 0, 0.5);
    border-radius: var(--sp-radius-md);
    overflow: hidden;
    transition: var(--sp-transition);
}

.sp-hero__adjacent-card:hover {
    background: rgba(0, 0, 0, 0.7);
}

.sp-hero__adjacent-img {
    width: 140px;
    height: 90px;
    object-fit: cover;
}

.sp-hero__adjacent-label {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    font-family: var(--sp-font-body);
    font-size: 11px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    white-space: nowrap;
}

.sp-hero__adjacent-label svg {
    flex-shrink: 0;
    color: var(--sp-color-gold);
}

.sp-article {
    padding: 80px 0 120px;
}

.sp-article__layout {
    display: grid;
    grid-template-columns: var(--sp-sidebar-left) 1fr var(--sp-sidebar-right);
    gap: var(--sp-content-gap);
    max-width: var(--sp-container-width);
    margin: 0 auto;
    padding: 0 var(--sp-container-padding);
}

.sp-toc {
    position: sticky;
    top: 120px;
    align-self: start;
}

.sp-toc__title {
    font-family: var(--sp-font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--sp-color-dark);
    margin: 0 0 20px;
}

.sp-toc__list {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: toc-counter;
}

.sp-toc__list li {
    counter-increment: toc-counter;
    margin-bottom: 12px;
}

.sp-toc__list li a {
    display: flex;
    align-items: baseline;
    gap: 8px;
    font-family: var(--sp-font-body);
    font-size: 14px;
    font-weight: 500;
    color: var(--sp-color-gray);
    text-decoration: none;
    transition: var(--sp-transition);
    line-height: 1.4;
}

.sp-toc__list li a::before {
    content: counter(toc-counter, decimal-leading-zero);
    font-size: 12px;
    font-weight: 600;
    color: var(--sp-color-gray-border);
    flex-shrink: 0;
    transition: var(--sp-transition);
}

.sp-toc__list li a:hover,
.sp-toc__list li.is-active a {
    color: var(--sp-color-dark);
}

.sp-toc__list li.is-active a::before {
    color: var(--sp-color-gold);
}

.sp-article__content {
    min-width: 0;
}

.sp-article__content h2 {
    font-family: var(--sp-font-heading);
    font-size: 32px;
    font-weight: 700;
    line-height: 1.25;
    color: var(--sp-color-dark);
    margin: 48px 0 20px;
}

.sp-article__content h2:first-child {
    margin-top: 0;
}

.sp-article__content h3 {
    font-family: var(--sp-font-heading);
    font-size: 24px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--sp-color-dark);
    margin: 36px 0 16px;
}

.sp-article__content h4 {
    font-family: var(--sp-font-body);
    font-size: 20px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--sp-color-dark);
    margin: 28px 0 12px;
}

.sp-article__content p {
    font-family: var(--sp-font-body);
    font-size: 18px;
    line-height: 1.7;
    color: var(--sp-color-dark);
    margin: 0 0 20px;
}

.sp-article__content img {
    border-radius: var(--sp-radius-md);
    margin: 32px 0;
    width: 100%;
    height: auto;
}

.sp-article__content figure {
    margin: 32px 0;
}

.sp-article__content figure img {
    margin: 0;
}

.sp-article__content figcaption {
    font-family: var(--sp-font-body);
    font-size: 14px;
    color: var(--sp-color-gray);
    text-align: center;
    margin-top: 12px;
}

.sp-article__content blockquote {
    border-left: 4px solid var(--sp-color-gold);
    padding: 4px 0 4px 24px;
    margin: 32px 0;
    font-style: italic;
}

.sp-article__content blockquote p {
    font-size: 20px;
    color: var(--sp-color-gray);
    margin: 0;
}

.sp-article__content ul,
.sp-article__content ol {
    padding-left: 24px;
    margin: 16px 0 20px;
}

.sp-article__content li {
    font-family: var(--sp-font-body);
    font-size: 18px;
    line-height: 1.7;
    color: var(--sp-color-dark);
    margin-bottom: 8px;
}

.sp-article__content a {
    color: var(--sp-color-gold);
    text-decoration: underline;
    transition: var(--sp-transition);
}

.sp-article__content a:hover {
    color: var(--sp-color-gold-dark);
}

.sp-article__content strong {
    font-weight: 700;
}

.sp-article__content em {
    font-style: italic;
}

.sp-article__nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    margin-top: 60px;
    padding-top: 32px;
    border-top: 1px solid var(--sp-color-gray-border);
}

.sp-article__nav-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--sp-font-body);
    font-size: 14px;
    font-weight: 600;
    color: var(--sp-color-dark);
    text-decoration: none;
    transition: var(--sp-transition);
}

.sp-article__nav-link:hover {
    color: var(--sp-color-gold);
}

.sp-article__nav-link--next {
    margin-left: auto;
}

.sp-article__nav-link svg {
    flex-shrink: 0;
}

.sp-sidebar {
    align-self: start;
}

.sp-sidebar__meta {
    background-color: var(--sp-color-gray-light);
    border-radius: var(--sp-radius-lg);
    padding: 32px 24px;
    margin-bottom: 32px;
}

.sp-sidebar__meta-item {
    margin-bottom: 20px;
}

.sp-sidebar__meta-item:last-child {
    margin-bottom: 0;
}

.sp-sidebar__meta-label {
    display: block;
    font-family: var(--sp-font-body);
    font-size: 12px;
    font-weight: 600;
    color: var(--sp-color-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.sp-sidebar__meta-value {
    font-family: var(--sp-font-body);
    font-size: 15px;
    font-weight: 500;
    color: var(--sp-color-dark);
}

.sp-sidebar__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.sp-sidebar__tag {
    display: inline-block;
    padding: 4px 12px;
    font-family: var(--sp-font-body);
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--sp-radius-sm);
    border: 1px solid var(--sp-color-gray-border);
    color: var(--sp-color-dark);
}

.sp-sidebar__tag--category {
    background-color: var(--sp-color-gold);
    border-color: var(--sp-color-gold);
    color: var(--sp-color-light);
}

.sp-recent {
    border-top: 1px solid var(--sp-color-gray-border);
    padding-top: 32px;
}

.sp-recent__title {
    font-family: var(--sp-font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--sp-color-dark);
    margin: 0 0 20px;
}

.sp-recent__item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    text-decoration: none;
    margin-bottom: 16px;
    transition: var(--sp-transition);
}

.sp-recent__item:last-child {
    margin-bottom: 0;
}

.sp-recent__item:hover .sp-recent__item-title {
    color: var(--sp-color-gold);
}

.sp-recent__item-image {
    width: 80px;
    height: 60px;
    border-radius: var(--sp-radius-sm);
    overflow: hidden;
    flex-shrink: 0;
}

.sp-recent__item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sp-recent__item-content {
    min-width: 0;
}

.sp-recent__item-title {
    font-family: var(--sp-font-body);
    font-size: 14px;
    font-weight: 600;
    color: var(--sp-color-dark);
    margin: 0 0 4px;
    line-height: 1.3;
    transition: var(--sp-transition);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.sp-recent__item-date {
    font-family: var(--sp-font-body);
    font-size: 12px;
    color: var(--sp-color-gray);
}

.sp-cta-banner {
    background-color: var(--sp-color-dark-bg);
    padding: 120px 0;
    text-align: center;
}

.sp-cta-banner__container {
    max-width: var(--sp-container-width);
    margin: 0 auto;
    padding: 0 var(--sp-container-padding);
}

.sp-cta-banner__logo {
    max-width: 280px;
    height: auto;
    object-fit: contain;
    margin: 0 auto 24px;
}

.sp-cta-banner__title {
    font-family: var(--sp-font-heading);
    font-size: 55px;
    font-weight: 700;
    color: var(--sp-color-light);
    margin: 0 0 20px;
    line-height: 1.2;
}

.sp-cta-banner__description {
    font-family: var(--sp-font-body);
    font-size: 20px;
    color: rgba(255, 255, 255, 0.7);
    margin: 0 auto 48px;
    max-width: 700px;
    line-height: 1.6;
}

.sp-cta-banner__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.sp-cta-banner__card {
    border-radius: var(--sp-radius-md);
    overflow: hidden;
    aspect-ratio: 4 / 3;
}

.sp-cta-banner__card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sp-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.sp-animate--visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1199px) {
    :root {
        --sp-container-padding: 40px;
        --sp-content-gap: 40px;
    }

    .sp-toc {
        display: none;
    }

    .sp-article__layout {
        grid-template-columns: 1fr var(--sp-sidebar-right);
    }

    .sp-cta-banner__title {
        font-size: 42px;
    }

    .sp-hero__adjacent {
        left: 20px;
    }

    .sp-hero__adjacent-card {
        width: 120px;
    }

    .sp-hero__adjacent-img {
        width: 120px;
        height: 75px;
    }
}

@media (max-width: 767px) {
    :root {
        --sp-container-padding: 20px;
        --sp-sidebar-right: 100%;
        --sp-content-gap: 32px;
    }

    .sp-hero__adjacent {
        display: none;
    }

    .sp-article {
        padding: 40px 0 60px;
    }

    .sp-article__layout {
        grid-template-columns: 1fr;
    }

    .sp-article__content h2 {
        font-size: 24px;
        margin-top: 32px;
    }

    .sp-article__content h3 {
        font-size: 20px;
    }

    .sp-article__content p,
    .sp-article__content li {
        font-size: 16px;
    }

    .sp-article__content blockquote p {
        font-size: 17px;
    }

    .sp-article__content img {
        margin: 20px 0;
    }

    .sp-article__nav {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        margin-top: 40px;
    }

    .sp-article__nav-link--next {
        margin-left: 0;
    }

    .sp-sidebar__meta {
        padding: 24px 20px;
    }

    .sp-cta-banner {
        padding: 60px 0;
    }

    .sp-cta-banner__title {
        font-size: 28px;
    }

    .sp-cta-banner__description {
        font-size: 16px;
    }

    .sp-cta-banner__grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }
}

@media (max-width: 400px) {
    .sp-cta-banner__title {
        font-size: 24px;
    }

    .sp-article__content h2 {
        font-size: 22px;
    }
}