/**
 * 侧边栏与通用组件
 * @author GCG
 */
.ssi-sidebar-card {
    background: #fff;
    border: 1px solid var(--ssi-outline-variant);
    border-radius: var(--ssi-radius);
    padding: 24px;
    margin-bottom: 24px;
    transition: box-shadow 0.2s;
}

.ssi-sidebar-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.ssi-sidebar-card__title {
    font-family: var(--ssi-font-label);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ssi-primary);
    border-bottom: 1px solid rgba(0, 0, 86, 0.15);
    padding-bottom: 12px;
    margin-bottom: 16px;
}

.ssi-sidebar-card--ice {
    background: var(--ssi-surface-ice);
    border-color: transparent;
}

.ssi-submit-card {
    margin-bottom: 24px;
}

.ssi-submit-card .ssi-btn-primary {
    width: 100%;
    justify-content: center;
}

.ssi-trending-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.ssi-trending-list li {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.ssi-trending-list__num {
    font-family: var(--ssi-font-display);
    font-size: 28px;
    font-weight: 700;
    color: rgba(0, 0, 86, 0.15);
    line-height: 1;
    flex-shrink: 0;
}

.ssi-trending-list li:hover .ssi-trending-list__num {
    color: rgba(0, 0, 86, 0.35);
}

.ssi-trending-list a {
    font-family: var(--ssi-font-label);
    font-size: 14px;
    font-weight: 700;
    color: var(--ssi-ink-black);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.ssi-trending-list a:hover { color: var(--ssi-primary); }

.ssi-trending-list__meta {
    font-size: 12px;
    color: var(--ssi-muted-gray);
    margin-top: 4px;
}

.ssi-most-viewed-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.ssi-most-viewed-list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--ssi-outline-variant);
}

.ssi-most-viewed-list li:last-child { border-bottom: none; }

.ssi-most-viewed-list a {
    font-size: 15px;
    font-weight: 600;
    color: var(--ssi-ink-black);
    display: block;
    margin-bottom: 4px;
}

.ssi-most-viewed-list .view-count {
    font-size: 12px;
    color: var(--ssi-muted-gray);
}

.ssi-indexing-logos img {
    max-width: 100%;
    margin-bottom: 8px;
}

.ssi-breadcrumb {
    margin-bottom: 24px;
}

.ssi-breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
    font-family: var(--ssi-font-label);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ssi-muted-gray);
}

.ssi-breadcrumb a { color: var(--ssi-muted-gray); }
.ssi-breadcrumb a:hover { color: var(--ssi-primary); }
.ssi-breadcrumb .is-active { color: var(--ssi-on-background); }

.ssi-breadcrumb__sep {
    color: var(--ssi-outline);
    font-size: 10px;
}

.ssi-content-panel {
    background: #fff;
    padding: 24px;
    border-radius: var(--ssi-radius-lg);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

@media (min-width: 768px) {
    .ssi-content-panel { padding: 48px; }
}

.ssi-announcement-item {
    padding: 24px 0;
    border-bottom: 1px solid var(--ssi-outline-variant);
}

.ssi-announcement-item:last-child { border-bottom: none; }

.ssi-announcement-item h2 {
    font-size: 22px;
    margin-bottom: 8px;
}

.ssi-announcement-item h2 a { color: var(--ssi-ink-black); }
.ssi-announcement-item h2 a:hover { color: var(--ssi-primary); }

.ssi-announcement-meta {
    font-size: 14px;
    color: var(--ssi-muted-gray);
    margin-bottom: 12px;
}

.ssi-issue-archive-item {
    margin-bottom: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--ssi-outline-variant);
}

.ssi-issue-archive-item:last-child { border-bottom: none; }

.ssi-issue-archive-item h3 {
    margin: 16px 0;
}

.ssi-issue-archive-item h3 a {
    color: var(--ssi-action-blue);
    font-size: 22px;
}

.ssi-error-page {
    text-align: center;
    padding: 80px 24px;
}

.ssi-error-page h1 {
    font-size: 72px;
    color: var(--ssi-primary);
    margin-bottom: 8px;
}

.ssi-error-page h2 {
    font-size: 24px;
    margin-bottom: 16px;
}

.ssi-error-page p {
    color: var(--ssi-muted-gray);
    margin-bottom: 32px;
}

.ssi-error-page__actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}