.oak-semantic-container {
    max-width: 800px;
    margin: 40px auto;
    padding: 0 20px 60px;
}

/* 搜索框 */
.oak-semantic-search-box {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #fff;
    border: 1px solid #dbe6ff;
    border-radius: 40px;
    padding: 6px 8px 6px 20px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}
.oak-semantic-search-box i { color: #2655ff; font-size: 18px; }
.oak-semantic-search-box input { flex: 1; border: none; outline: none; font-size: 15px; padding: 10px 0; }
.oak-semantic-kbd {
    font-size: 11px;
    color: #94a3b8;
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 2px 8px;
    white-space: nowrap;
}
.oak-semantic-search-box button {
    background: #2655ff;
    color: #fff;
    border: none;
    border-radius: 30px;
    padding: 0 24px;
    height: 40px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    flex-shrink: 0;
}

/* 推荐/最近搜索/相关推荐 芯片标签 */
.oak-semantic-chips {
    margin-top: 14px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}
.oak-semantic-chips-label { font-size: 12px; color: #94a3b8; margin-right: 2px; }
.oak-semantic-chip {
    display: inline-block;
    background: #f1f5f9;
    color: #334155;
    font-size: 12px;
    padding: 5px 14px;
    border-radius: 20px;
    cursor: pointer;
    transition: all .15s;
}
.oak-semantic-chip:hover { background: #dbe6ff; color: #2655ff; }
.oak-semantic-chip-clear {
    font-size: 12px;
    color: #94a3b8;
    cursor: pointer;
    text-decoration: underline;
    margin-left: 4px;
}
.oak-semantic-related { margin-top: 20px; padding-top: 16px; border-top: 1px dashed #e2e8f0; }

/* 结果计数 */
.oak-semantic-count {
    font-size: 13px;
    color: #94a3b8;
    margin: 24px 0 14px;
}

/* 骨架屏 */
.oak-semantic-skeleton {
    display: flex;
    gap: 14px;
    background: #fff;
    border: 1px solid #edf2f7;
    border-radius: 14px;
    padding: 16px 20px;
    margin-bottom: 14px;
}
.oak-skeleton-thumb {
    width: 80px; height: 80px; flex-shrink: 0; border-radius: 10px;
    background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 37%, #f1f5f9 63%);
    background-size: 400% 100%;
    animation: oak-shimmer 1.4s ease infinite;
}
.oak-skeleton-body { flex: 1; display: flex; flex-direction: column; gap: 10px; justify-content: center; }
.oak-skeleton-line {
    height: 12px; border-radius: 6px;
    background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 37%, #f1f5f9 63%);
    background-size: 400% 100%;
    animation: oak-shimmer 1.4s ease infinite;
}
@keyframes oak-shimmer { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }

/* 结果卡片 */
.oak-semantic-item {
    display: flex;
    gap: 14px;
    background: #fff;
    border: 1px solid #edf2f7;
    border-radius: 14px;
    padding: 16px 20px;
    margin-bottom: 14px;
    transition: transform 0.15s, box-shadow 0.15s;
}
.oak-semantic-item:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.06); }
.oak-semantic-item-thumb {
    flex-shrink: 0; width: 80px; height: 80px; border-radius: 10px; overflow: hidden; background: #f1f5f9;
}
.oak-semantic-item-thumb img { width: 100%; height: 100%; object-fit: cover; }
.oak-semantic-item-body { flex: 1; min-width: 0; }
.oak-semantic-item-title {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: #0f172a;
    text-decoration: none;
    margin-bottom: 6px;
}
.oak-semantic-item-title:hover { color: #3b82f6; }
.oak-semantic-item-meta { display: flex; gap: 10px; align-items: center; margin-bottom: 6px; }
.oak-semantic-tag {
    font-size: 11px; color: #2655ff; background: #eef3ff; padding: 2px 10px; border-radius: 20px;
}
.oak-semantic-date { font-size: 11px; color: #94a3b8; }
.oak-semantic-item-excerpt { font-size: 13px; color: #64748b; line-height: 1.6; margin-bottom: 10px; }
.oak-semantic-score-row { display: flex; align-items: center; gap: 10px; }
.oak-semantic-score-bar { flex: 1; max-width: 160px; height: 5px; background: #f1f5f9; border-radius: 3px; overflow: hidden; }
.oak-semantic-score-fill { height: 100%; background: linear-gradient(90deg, #60a5fa, #2655ff); border-radius: 3px; }
.oak-semantic-score-text { font-size: 11px; color: #94a3b8; white-space: nowrap; }

/* 空状态 */
.oak-semantic-empty { text-align: center; padding: 40px 0 20px; }
.oak-semantic-empty-title { color: #94a3b8; font-size: 14px; }
.oak-semantic-fallback-label { font-size: 13px; color: #94a3b8; margin: 4px 0 12px; text-align: center; }
.oak-semantic-fallback-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.oak-semantic-fallback-item {
    display: flex;
    gap: 10px;
    align-items: center;
    background: #fff;
    border: 1px solid #edf2f7;
    border-radius: 12px;
    padding: 10px;
    text-decoration: none;
    transition: transform .15s;
}
.oak-semantic-fallback-item:hover { transform: translateY(-2px); }
.oak-semantic-fallback-thumb { flex-shrink: 0; width: 48px; height: 48px; border-radius: 8px; overflow: hidden; background: #f1f5f9; }
.oak-semantic-fallback-thumb img { width: 100%; height: 100%; object-fit: cover; }
.oak-semantic-fallback-title { font-size: 13px; color: #0f172a; line-height: 1.4; }

@media (max-width: 600px) {
    .oak-semantic-fallback-grid { grid-template-columns: 1fr; }
    .oak-semantic-kbd { display: none; }
}